If I knew more about this stuff I'd be happy to hack a solution. Unfortunately I do not. ConsequenltyI must rely on the mercy of our community. Please help.
** Description changed: PROBLEM Hot keys for adjusting screen brightness do not work in Karmic or Lucid for Gateway NV59 laptop with Arrandale Graphics. Under Karmic, workaround was to adjust screen brightness while still in BIOS post. Karmic would boot with the selected screen brightness Under Lucid, screen brightness goes to 100% when booting, ignoring brightness set during boot. Hot keys for adjusting brightness do not work. RESULTS Tried the following: * Setting memory directly under /proc Results: memory for VGA brightness would change but display wouldn't actually change CHANGING BOOT PARAMETERS: # GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nolapic acpi_backlight=vendor" # above line doesn't solve problem # GRUB_CMDLINE_LINUX="acpi=off" # above line allows screen brightness but hyperthreading is off GRUB_CMDLINE_LINUX="acpi=ht" # above line allows screen brightness adjustment at cost of power, core temp? # GRUB_CMDLINE_LINUX="acpi_generic_hotkey" # above line doesn't solve screen brightness problem # GRUB_CMDLINE_LINUX="acpi=strict" # above line does not solve screen brightness problem # GRUB_CMDLINE_LINUX="acpi_osi=Linux" # above line does not solve screen brightness problem # GRUB_CMDLINE_LINUX="acpi=noirq" # above line doesn't solve # GRUB_CMDLINE_LINUX="acpi=noacpi" # above line does not allow screen brightness adjustment # GRUB_CMDLINE_LINUX="acpi_backlight=vendor" # above line does not work # GRUB_CMDLINE_LINUX="i915.modeset=0" # above line make linux unbootable. Have to book off USB/CD and manually edit grub.conf BEST WORKAROUND GRUB_CMDLINE_LINUX="acpi=ht" # above line allows screen brightness adjustment at cost of power, core temp? - - Linux tdlap6 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC 2010 x86_64 GNU/Linux + Linux tdlap6 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC + 2010 x86_64 GNU/Linux ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-21-generic 2.6.32-21.32 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-21-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 ArecordDevices: - **** List of CAPTURE Hardware Devices **** - card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog] - Subdevices: 1/1 - Subdevice #0: subdevice #0 + **** List of CAPTURE Hardware Devices **** + card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: tonydiep 1621 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: tonydiep 1621 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: - Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 22' - Mixer name : 'Intel G45 DEVIBX' - Components : 'HDA:10ec0272,1025033d,00100001 HDA:14f12c06,10250093,00100000 HDA:80862804,80860101,00100000' - Controls : 26 - Simple ctrls : 13 + Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 22' + Mixer name : 'Intel G45 DEVIBX' + Components : 'HDA:10ec0272,1025033d,00100001 HDA:14f12c06,10250093,00100000 HDA:80862804,80860101,00100000' + Controls : 26 + Simple ctrls : 13 Date: Sun May 2 16:39:17 2010 HibernationDevice: RESUME=/dev/sda5 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) MachineType: Gateway NV59 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=53103199-f27c-4ef8-879c-bf122b4216fe ro acpi=ht quiet splash ProcEnviron: - LANG=en_CA.utf8 - SHELL=/bin/bash + LANG=en_CA.utf8 + SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.34 RfKill: - 0: phy0: Wireless LAN - Soft blocked: no - Hard blocked: no + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no SourcePackage: linux dmi.bios.date: 11/26/2009 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: V1.09 dmi.board.name: NV59 dmi.board.vendor: Gateway dmi.board.version: Rev dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Gateway dmi.chassis.version: Rev dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.09:bd11/26/2009:svnGateway:pnNV59:pvrRev:rvnGateway:rnNV59:rvrRev:cvnGateway:ct10:cvrRev: dmi.product.name: NV59 dmi.product.version: Rev dmi.sys.vendor: Gateway -- Screen brightness can not be adjusted in Lucid with Intel Arrandale graphics https://bugs.launchpad.net/bugs/573984 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
