[Kernel-packages] [Bug 2034619] Re: [amdgpu] gnome-shell gets SIGKILL'd when lock screen or under heavy load in Wayland
I can totally confirm this issue affecting my Thinkpad P14s with Ryzen 7 is fixed by the mutter release in Proposed. Eabling the Prodosed repo did not get me any updates but after installing mutter with "sudo apt install -t mantic-proposed mutter" all is well in town :) Thanks so much for this! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2034619 Title: [amdgpu] gnome-shell gets SIGKILL'd when lock screen or under heavy load in Wayland Status in Linux: New Status in Mutter: Fix Released Status in X.Org X server: Fix Released Status in linux package in Ubuntu: Triaged Status in mutter package in Ubuntu: Fix Committed Status in linux source package in Mantic: Triaged Status in mutter source package in Mantic: Fix Committed Bug description: [ Impact ] gnome-shell gets unceremoniously SIGKILLed on some Ryzen systems, sometimes when the screen locks, sometimes when launching particular apps. [ Workaround ] Add this to /etc/environment: MUTTER_DEBUG_KMS_THREAD_TYPE=user and then reboot. [ Test Plan ] Not all Ryzen systems (including one I just purchased) are able to reproduce the bug. We have no choice but to leave final verification to the community. Anyone affected should try locking their screen and verify they are not instantly returned to the login screen. [ Where problems could occur ] Anywhere in frame scheduling and particularly for mouse cursor movement since that's what the real-time thread exists to optimize. [ Original Description ] I have this issue on Ubuntu 23.10. Lock screen works only with an external monitor connected. Otherwise the session is ended and the user is logged out and brought to the gdm screen. All works in xorg. ProblemType: Crash DistroRelease: Ubuntu 23.10 Package: gnome-shell 45~beta.1-0ubuntu2 ProcVersionSignature: Ubuntu 6.3.0-7.7-generic 6.3.5 Uname: Linux 6.3.0-7-generic x86_64 ApportVersion: 2.27.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Wed Sep 6 22:32:22 2023 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell InstallationDate: Installed on 2023-09-03 (3 days ago) InstallationMedia: Ubuntu 23.10 "Mantic Minotaur" - Daily amd64 (20230901.1) ProcCmdline: /usr/bin/gnome-shell RelatedPackageVersions: mutter-common 45~beta.1-1ubuntu2 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sudo users separator: To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2034619/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1486316] Re: lpc_ich: Resource conflict(s) found affecting gpio_ich
Still relevant in Ubuntu 20.04 running kernel 5.4.0 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1486316 Title: lpc_ich: Resource conflict(s) found affecting gpio_ich Status in linux package in Ubuntu: Triaged Bug description: This nearly identical to the following bug: (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1027370). (sorry not sure how to make links here) however, this is not effecting iTCO_wdt, but is effecting gpio_ich ACPI Warning: SystemIO range 0x0828-0x082F conflicts with OpRegion 0x0800-0x084F (\PMRG) (20150410/utaddress-254) [ ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver lpc_ich: Resource conflict(s) found affecting gpio_ich This error occurs in 15,04 and the latest build of 15.10. i meant to post this up with the last report i made but i ended up getting distracted. sorry. LSB: Description: Ubuntu Wily Werewolf (development branch) Release: 15.10 --- ApportVersion: 2.18-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0p: testusr1632 F...m pulseaudio /dev/snd/controlC0: testusr1632 F pulseaudio /dev/snd/controlC1: testusr1632 F pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 15.10 HibernationDevice: RESUME=UUID=df53ef11-a582-4795-81e6-4666c7ba9eb7 InstallationDate: Installed on 2015-08-15 (3 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150815.1) IwConfig: enp4s0no wireless extensions. lono wireless extensions. MachineType: Gateway FX6840 Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.1.0-3-generic root=UUID=2244254b-eee5-4fa6-bb16-d4e811b01f42 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3 RelatedPackageVersions: linux-restricted-modules-4.1.0-3-generic N/A linux-backports-modules-4.1.0-3-generic N/A linux-firmware 1.146 RfKill: Tags: wily UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 4.1.0-3-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/17/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P01-A3 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: FX6840 dmi.board.vendor: Gateway dmi.chassis.type: 3 dmi.chassis.vendor: Gateway dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01-A3:bd05/17/2010:svnGateway:pnFX6840:pvr:rvnGateway:rnFX6840:rvr:cvnGateway:ct3:cvr: dmi.product.name: FX6840 dmi.sys.vendor: Gateway To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1486316/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1163587] Re: mtrr_cleanup: can not find optimal value, perhaps no longer needed?
OK, 7 years after the original report, this issue still seems relevant on Ubuntu 20.04. So how to know if a machine needs mtrr_cleanup at all? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1163587 Title: mtrr_cleanup: can not find optimal value, perhaps no longer needed? Status in linux package in Ubuntu: Triaged Bug description: The actual common error message from dmesg: [0.00] original variable MTRRs [0.00] reg 0, base: 0GB, range: 32GB, type WB [0.00] reg 1, base: 3584MB, range: 512MB, type UC [0.00] reg 2, base: 3548MB, range: 4MB, type UC [0.00] reg 3, base: 3552MB, range: 32MB, type UC [0.00] total RAM covered: 32220M [0.00] gran_size: 64K chunk_size: 64K num_reg: 7 lose cover RAM: 28676M [0.00] gran_size: 64K chunk_size: 128Knum_reg: 7 lose cover RAM: 28676M [0.00] gran_size: 64K chunk_size: 256Knum_reg: 7 lose cover RAM: 28676M [0.00] gran_size: 64K chunk_size: 512Knum_reg: 7 lose cover RAM: 28676M [0.00] gran_size: 64K chunk_size: 1M num_reg: 7 lose cover RAM: 28676M ... [0.00] gran_size: 256M chunk_size: 2G num_reg: 6 lose cover RAM: 220M [0.00] gran_size: 512M chunk_size: 512Mnum_reg: 5 lose cover RAM: 476M [0.00] gran_size: 512M chunk_size: 1G num_reg: 5 lose cover RAM: 476M [0.00] gran_size: 512M chunk_size: 2G num_reg: 5 lose cover RAM: 476M [0.00] gran_size: 1G chunk_size: 1G num_reg: 5 lose cover RAM: 476M [0.00] gran_size: 1G chunk_size: 2G num_reg: 5 lose cover RAM: 476M [0.00] gran_size: 2G chunk_size: 2G num_reg: 4 lose cover RAM: 1500M [0.00] mtrr_cleanup: can not find optimal value [0.00] please specify mtrr_gran_size/mtrr_chunk_size I have found errors like this on many machines (one with 128 GB of RAM, mine with just 4GB). The instructions want you to specify kernel options that you don't need to do. Just turning off mtrr_cleanup appears to be the best option. You can fix it be specifying disable_mtrr_cleanup. According to kernel paramaters (https://www.kernel.org/doc/Documentation/kernel-parameters.txt) disable_mtrr_cleanup [X86] The kernel tries to adjust MTRR layout from continuous to discrete, to make X server driver able to add WB entry later. This parameter disables that. From this I understand it was here to help allow leave the X server space if it needed it in the future. That should no longer be necessary, correct? I have an Intel GPU and noticed no performance problems by disabling it. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-16-generic 3.8.0-16.26 ProcVersionSignature: Ubuntu 3.8.0-16.26-generic 3.8.5 Uname: Linux 3.8.0-16-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: bryan 1978 F pulseaudio Date: Tue Apr 2 16:56:13 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2013-02-04 (56 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130204.1) MachineType: Dell Inc. Inspiron 1545 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-16-generic root=UUID=0983e077-6f15-4e52-a776-faa186229dc8 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-16-generic N/A linux-backports-modules-3.8.0-16-generic N/A linux-firmware1.104 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/07/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 0G848F dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd12/07/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Inspiron 1545 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1163587/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1685442] Re: Errors: flip_done timed out during boot-up; slow boot
Confirmed on Mackbook 2008 both the issue (flip_done error and very slow boot) and the work-around (video=SVIDEO-1:d) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1685442 Title: Errors: flip_done timed out during boot-up; slow boot Status in linux package in Ubuntu: Confirmed Bug description: I had been running Ubuntu 16.04 LTS on many laptop computers (especially Dell D620, D630, E6400) with no problem. I created a Live USB with Ubuntu 16.04.2 LTS and tried it on a Dell D630. It was very slow to boot up (about 90 seconds) as opposed to the 30-45 seconds it usually takes. For a few seconds there were error messages that included the phrase "flip_done timed out". When the Ubuntu desktop appeared, the mouse cursor hung for a while, but then came back to life. I didn't do much testing from there. I did a Live session with the 16.04.2 LTS on a different D630 laptop, and the same problem occureed. I Googled the problem, and found several hits. - On an Arch forum, someone reported the problem on a Dell D630, like mine. It also occured on other laptops: https://bbs.archlinux.org/viewtopic.php?id=218581 The suggestion was that the bug was related to kernel version 4.8.x and the 965GM chipset, which is what the D630 has. So I tried Ubuntu Mate 16.04.2 on a Dell D620 (with a 945GM chipset) and the problem DID NOT occur. --- For a similar boot-up problem, Ubuntu Forum suggested going back to an earlier version of Ubuntu. https://ubuntuforums.org/showthread.php?t=2348892 I tried Ubuntu Mate 16.04.1 (with the 4.4.0-31-generic kernel), and the problem did NOT occur. So I'm solving the problem for myself by using Ubuntu Mate 16.04.1 LTS rather than 16.04.2. --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: test 2194 F pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=a754e82c-72cb-44d1-9fa4-58777803b24d InstallationDate: Installed on 2017-07-19 (0 days ago) InstallationMedia: Ubuntu-MATE 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) MachineType: Dell Inc. Latitude D630 Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-36-generic root=UUID=2a3b3861-8ac7-41e0-86cf-999434bd112e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.8.0-36-generic N/A linux-backports-modules-4.8.0-36-generic N/A linux-firmware1.157.8 Tags: xenial Uname: Linux 4.8.0-36-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 06/04/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A19 dmi.board.name: 0KU184 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA19:bd06/04/2013:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn0KU184:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude D630 dmi.sys.vendor: Dell Inc. --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: test 2194 F pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=a754e82c-72cb-44d1-9fa4-58777803b24d InstallationDate: Installed on 2017-07-19 (0 days ago) InstallationMedia: Ubuntu-MATE 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) MachineType: Dell Inc. Latitude D630 Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-36-generic root=UUID=2a3b3861-8ac7-41e0-86cf-999434bd112e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.8.0-36-generic N/A linux-backports-modules-4.8.0-36-generic N/A linu
[Kernel-packages] [Bug 1391407] Re: package firmware-b43-installer 1:018-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4
Bug report dialog set me to this thread. I followed the link provided by Anthony Heiberg (above) and found that only doing a $ sudo apt-get remove bcmwl-kernel-source (skipping the rest of the instructions) seems to have resolved it. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to b43-fwcutter in Ubuntu. https://bugs.launchpad.net/bugs/1391407 Title: package firmware-b43-installer 1:018-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4 Status in b43-fwcutter package in Ubuntu: New Bug description: dpkg: error processing package firmware-b43-installer (--configure): subprocess installed post-installation script returned error exit status 4 Errors were encountered while processing: firmware-b43-installer E: Sub-process /usr/bin/dpkg returned an error code (1) ProblemType: Package DistroRelease: Ubuntu 14.04 Package: firmware-b43-installer 1:018-2 ProcVersionSignature: Ubuntu 3.13.0-40.68-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic i686 NonfreeKernelModules: wl ApportVersion: 2.14.1-0ubuntu3.6 AptOrdering: b43-fwcutter: Install firmware-b43-installer: Install b43-fwcutter: Configure firmware-b43-installer: Configure Architecture: i386 Date: Tue Nov 11 08:48:16 2014 DuplicateSignature: package:firmware-b43-installer:1:018-2:subprocess installed post-installation script returned error exit status 4 ErrorMessage: subprocess installed post-installation script returned error exit status 4 InstallationDate: Installed on 2014-05-01 (193 days ago) InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2) PackageArchitecture: all SourcePackage: b43-fwcutter Title: package firmware-b43-installer 1:018-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/b43-fwcutter/+bug/1391407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1309462] Re: 8086:0166 [Aspire V5-571P] Backlight not adjustable
** Tags removed: kernel-bug-exists-upstream-1.13.10 kernel-bug-exists-upstream-1.14.1 ** Tags added: kernel-bug-exists-upstream-3.13.10 kernel-bug-exists-upstream-3.14.1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: 8086:0166 [Aspire V5-571P] Backlight not adjustable Status in “linux” package in Ubuntu: Incomplete Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1309462] Re: 8086:0166 [Aspire V5-571P] Backlight not adjustable
By the way, I just noticed a (probably) related bug which exists in all kernels and is NOT resolved with video.use_native_backlight=1 The option in the config screen "Screen brightness and lock" (this is a translation, I have Dutch version so not sure how it is called in English) where it says something like "dim screen to save power"... checked or not... power cable connected or not... it does not have any effect. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: 8086:0166 [Aspire V5-571P] Backlight not adjustable Status in “linux” package in Ubuntu: Incomplete Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1309462] Re: 8086:0166 [Aspire V5-571P] Backlight not adjustable
Tested 1.13.10, then moved to 1.14.1 and finally 1.15-rc2. All upstream kernels with the same result: needs video.use_native_backlight=1 ** Tags added: kernel-exists-upstream-3.15-rc2 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: 8086:0166 [Aspire V5-571P] Backlight not adjustable Status in “linux” package in Ubuntu: Incomplete Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1309462] Re: 8086:0166 [Aspire V5-571P] Backlight not adjustable
** Tags added: kernel-bug-exists-upstream kernel-bug-exists- upstream-1.13.10 kernel-bug-exists-upstream-1.14.1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: 8086:0166 [Aspire V5-571P] Backlight not adjustable Status in “linux” package in Ubuntu: Incomplete Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1309462] Re: 8086:0166 [Aspire V5-571P] Backlight not adjustable
Hi Christopher, Having Windows 8 on dual boot, I decided to pass via Windows to upgrade the BIOS with the exe downloaded from ACER. Boy do I regret that... It did the upgrade but subsequently I could not boot the system anymore! I managed to get into the BIOS with F2 and switch the SecureBoot option back off (apparently switched on during the upgrade) by switching off UEFI, saving the options and rebooting. Then back into BIOS again and switching UEFI on again made SecureBoot remain off (strange!)... But then I only made it to a grub rescue prompt with a message about Unknown filesystem. Lots of reading on the net on how to 'fix' this, I still could not resolve it from the prompt each attempt failing with some message about reaching end of file unexpectedly when trying to assign vmlinuz-3.13.0-24 to linux. Finally created a Live USB and followed instructions for BootRepair (took the one for saucy as there is no trusty repo for it yet) which got the system back up. Amazing software that! Back in Ubuntu, booted with only "quiet splash" boot parameters, I find that the backlight control is failing again as it was before I added video.use_native_backlight=1 to the kernel boot switches. dmidecode -s bios-version && dmidecode -s bios-release-date V2.18 06/21/2013 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: 8086:0166 [Aspire V5-571P] Backlight not adjustable Status in “linux” package in Ubuntu: Incomplete Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspir
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Description changed: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. - No / Yes * - - > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel - parameter atkbd.softraw=0 to /boot/grub/menu.lst - - They are so I did (not /boot/grub/menu.lst but /etc/default/grub - though...) and I rebooted even though it is not written I should... - - > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account - and execute: showkey -s + Yes / Yes * * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight acpi_video0 intel_backlight $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer ** Description changed: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a bri
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Description changed: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes - > Reboot with just kernel parameter video.use_bios_initial_backlight=0 + > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. - No / Yes * + No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled - BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: ravanhagen 1918 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.13.0-24-generic N/A - linux-backports-modules-3.13.0-24-generic N/A - linux-firmware 1.127 + linux-restricted-modules-3.13.0-24-generic N/A + linux-backports-modules-3.13.0-24-generic N/A + linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer ** Description changed: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adj
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
My appoligies: It turns out I forgot an update-grub after reverting the kernel parameters. Can/should the attached debug files be removed or replaced? Please let me know :) And please ignore all remarks about the default interface remaining gone. It's back and called acpi_video0 ... Also the hotkeys are working again and the showkey output is: Fn+Left: 0xe0 0x4c 0xe0 0xcc Fn+Right: 0xe0 0x54 0xe0 0xd4 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / No > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:r
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "fwts_method" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087233/+files/fwts_method -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "dmidecode.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087235/+files/dmidecode.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscription
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
$ sudo fwts Running 42 tests, results appended to results.log ** Attachment added: "results.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087232/+files/results.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.l
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "dsdt.dsl" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087223/+files/dsdt.dsl -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mai
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt6.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087221/+files/ssdt6.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt5.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087220/+files/ssdt5.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt4.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087219/+files/ssdt4.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt2.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087211/+files/ssdt2.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt1.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087210/+files/ssdt1.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "ssdt3.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087218/+files/ssdt3.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- M
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
Result of ls /sys/class/backlight > backlight Please note that this is with the default kernel parameters "quiet splash" but AFTER having followed the steps in "Testing for a work around" steps... I'm sure there was another interface listed BEFORE I did the steps. I think it was called video0_backlight but now it is and remains gone. Strange. ** Attachment added: "backlight" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087207/+files/backlight -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPho
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "acpidump.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087208/+files/acpidump.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions
[Kernel-packages] [Bug 1309462] Re: Intel Ivybridge Mobile graphics backlight not adjustable
** Attachment added: "dsdt.dat" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+attachment/4087209/+files/dsdt.dat -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: Confirmed Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1309462/+subscriptions -- Mai
[Kernel-packages] [Bug 1309462] [NEW] Intel Ivybridge Mobile graphics backlight not adjustable
Public bug reported: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effect. Note that the hotkeys Fn+Left and Fn+Right DO result in a moving slider indicator (this will change after testing with kernel parameters!) but no actual backlight change. Following https://wiki.ubuntu.com/Kernel/Debugging/Backlight "Testing for a workaround" here are my findings. More debugging info will be attached later. TESTING FOR A WORK AROUND > Reboot with only the kernel parameter acpi_backlight=vendor : > Make a comment on if you can now alter the backlight with hotkeys or a > brightness applet. No / Yes * > sudo su > echo 8 > /sys/class/backlight/intel_backlight/brightness > Please comment on if the brightness changes. Yes > Reboot with just kernel parameter video.use_bios_initial_backlight=0 > and make a comment on if you can now alter the backlight with hotkeys or a > brightness applet. No / Yes * > If using a v3.13.x+ series kernel, reboot with just kernel parameter > video.use_native_backlight=1 > and make a comment on if you can now alter the backlight with hotkeys or a > brightness applet. No / Yes * > If your backlight hotkeys are Fn+Left and Fn+Right, add kernel parameter atkbd.softraw=0 to /boot/grub/menu.lst They are so I did (not /boot/grub/menu.lst but /etc/default/grub though...) and I rebooted even though it is not written I should... > Then, switch to any console, e.g. Ctrl+Alt+F1, login by root account and execute: showkey -s I did (after reboot mentioned above) and found that the hotkeys do not give any output at all anymore... Strange. So I reverted all changed above and rebooted with only "quiet splash" boot parameters but still the hotkeys remain dead. Not even the faux brightness slider change anymore. Very strange! * please note that there is no brightness applet in Ubuntu GNOME 14.04 but going to the Settings > Screen Brightness & Lock the brightness can now be controlled BASIC DEBUGGING INFORMATION (all files will be attached later) $ ls /sys/class/backlight intel_backlight Note that this used to list video0_backlight (as I remember it) too but after testing and reverting (!) that entry remains gone. Strange. $ dmesg | grep 'ACPI: Video' [2.969975] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) $ cat /proc/version Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ravanhagen 1918 F pulseaudio CurrentDesktop: GNOME Date: Fri Apr 18 12:03:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-04-14 (3 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Daily amd64 (20140406) MachineType: Acer Aspire V5-571P ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=631fc653-5697-44cb-b877-f6cae0fda9cf ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V2.13 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-571P dmi.board.vendor: Acer dmi.board.version: V2.13 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V2.13 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.13:bd11/16/2012:svnAcer:pnAspireV5-571P:pvrV2.13:rvnAcer:rnAspireV5-571P:rvrV2.13:cvnAcer:ct9:cvrV2.13: dmi.product.name: Aspire V5-571P dmi.product.version: V2.13 dmi.sys.vendor: Acer ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty ** Attachment added: "grep -r . /proc/acpi > acpi" https://bugs.launchpad.net/bugs/1309462/+attachment/4087185/+files/acpi -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1309462 Title: Intel Ivybridge Mobile graphics backlight not adjustable Status in “linux” package in Ubuntu: New Bug description: On an Acer Aspire V5 with Intel Graphics, backlight control is not working. Both on Ubuntu GNOME 13.10 and 14.04 neither hotkeys or adjusting the applet slider has any effec
