Mantas Kriaučiūnas, please do not change anything on this report as you are not the original report. This is not a "every HP I tested with.." report, and that is not how linux (Ubuntu) bug reporting works.
Despite this, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via: ubuntu-bug linux For more on this, please see the official Ubuntu documentation: Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices Ubuntu Community: https://wiki.ubuntu.com/ReportingBugs When opening up the new report, please feel free to subscribe me to it. Please note, not filing a new report would delay your problem being addressed as quickly as possible. Thank you for your understanding. ** Summary changed: - HP ProBook 4540s and 4740s brightness control problems + [HP ProBook 4540s] brightness control problems ** Attachment removed: "/var/log/Xorg.0.log file when using 3.8.0-29-generic kernel" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1208257/+attachment/3776767/+files/Xorg.0.log ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1208257 Title: [HP ProBook 4540s] brightness control problems Status in “linux” package in Ubuntu: Incomplete Status in “linux” package in Baltix: New Bug description: I bought a laptop in December 2012, immediately tried to put Ubuntu 12.10, got broken wi-fi and non-working graphics acceleration. Updated kernel to version 3.6, with graphic acceleration was all right, even partially earned wi-fi. After some time wi-fi hang, helped only restart the network subsystem. Updated kernel to 3.7, with the wi-fi was all became normal, but stopped working brightness control with the Fn keys. Progress bar indicates that the brightness changes, but in fact nothing happens. Tried the new distribution 13.04, on 3.8 kernels, 3.9, 3.10, nothing changes. Upon adjustment has broken in 3.7 kernel. It turns out that this is a regression. WORKAROUND: Problem gone with kernel parameter acpi_backlight=vendor. --- ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: country UA: (2402 - 2482 @ 40), (N/A, 20) DistroRelease: Ubuntu 13.04 InstallationDate: Installed on 2013-08-04 (0 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Hewlett-Packard HP ProBook 4540s MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=f5b4658c-870e-449d-a9d7-5caaa6eec2f3 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8 RelatedPackageVersions: linux-restricted-modules-3.8.0-19-generic N/A linux-backports-modules-3.8.0-19-generic N/A linux-firmware 1.106 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: raring Uname: Linux 3.8.0-19-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 05/20/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68IRR Ver. F.41 dmi.board.name: 17F6 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 58.1E dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.41:bd05/20/2013:svnHewlett-Packard:pnHPProBook4540s:pvrA1018C1100:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1E:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 4540s dmi.product.version: A1018C1100 dmi.sys.vendor: Hewlett-Packard --- ApportVersion: 2.12-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 3887 F.... pulseaudio ubuntu 14062 F.... pulseaudio CRDA: country UA: (2400 - 2483 @ 40), (N/A, 20), NO-OUTDOOR (5150 - 5350 @ 40), (N/A, 20), NO-OUTDOOR (57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR CasperVersion: 1.336 DistroRelease: Ubuntu 13.10 LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130807) MachineType: Hewlett-Packard HP ProBook 4540s MarkForUpload: True Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/username.seed boot=casper persistent initrd=/casper/initrd.lz splash -- maybe-ubiquity ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3 RelatedPackageVersions: linux-restricted-modules-3.10.0-6-generic N/A linux-backports-modules-3.10.0-6-generic N/A linux-firmware 1.113 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: saucy Uname: Linux 3.10.0-6-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 05/20/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68IRR Ver. F.41 dmi.board.name: 17F6 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 58.1E dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.41:bd05/20/2013:svnHewlett-Packard:pnHPProBook4540s:pvrA1018C1100:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1E:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 4540s dmi.product.version: A1018C1100 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1208257/+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