Pls note that this machine was moved to ZFS since, and then back to good ole' ext4, and the problem remains exactly the same, so it has nothing to do with BTRFS. Removing BTRFS from bug title.
** Summary changed: - BTRFS [Toshiba L735-101] screen brightness cannot be set using hotkeys + [Toshiba L735-101] screen brightness cannot be set -- 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/971750 Title: [Toshiba L735-101] screen brightness cannot be set Status in “linux” package in Ubuntu: Confirmed Bug description: On my Toshiba L735-101, using btrfs, screen brightness keys do not allow screen brightness to be set. Actual brightness is always maximum (i.e. much too bright...). If I boot "normally" , screen brightness keys have no effect at all. If I boot adding the "acpi_backlight=vendor" option, then the brighness hotkeys cause the corresponding pop-up level bar to display (modulo bug #971734), still there is no change on actual screen brightness. Video board is : [ 74.130] (II) NVIDIA(0): NVIDIA GPU GeForce 315M (GT218) at PCI:1:0:0 (GPU-0) Boot dmesg shows some funny stuff : [ 3.346332] [Firmware Bug]: ACPI(VGA) defines _DOD but not _DOS Putting the following in /etc/X11/xorg.conf does not help: Option "RegistryDwords" "EnableBrightnessControl=1" # ll /sys/class/backlight/toshiba/ total 0 drwxr-xr-x 3 root root 0 avril 2 19:20 ./ drwxr-xr-x 3 root root 0 avril 2 19:20 ../ -r--r--r-- 1 root root 4096 avril 2 19:47 actual_brightness -rw-r--r-- 1 root root 4096 avril 2 19:47 bl_power -rw-r--r-- 1 root root 4096 avril 2 19:23 brightness lrwxrwxrwx 1 root root 0 avril 2 19:47 device -> ../../../TOS1900:00/ -r--r--r-- 1 root root 4096 avril 2 19:23 max_brightness drwxr-xr-x 2 root root 0 avril 2 19:47 power/ lrwxrwxrwx 1 root root 0 avril 2 19:20 subsystem -> ../../../../../../class/backlight/ -r--r--r-- 1 root root 4096 avril 2 19:23 type -rw-r--r-- 1 root root 4096 avril 2 19:20 uevent => Using the brightness hotkeys cause the value of "brightness" to change here (only if booted with "acpi_backlight=vendor"), but the value of "actual_brightness" doesn't change (nor the screen actual brigthness...) ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-21-generic 3.2.0-21.34 ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13 Uname: Linux 3.2.0-21-generic i686 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0-0ubuntu2 Architecture: i386 CheckboxSubmission: 1ea6109db29b53f721a523a77b7f3abf CheckboxSystem: d00f84de8a555815fa1c4660280da308 Date: Mon Apr 2 19:39:09 2012 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=0e7ded16-c4fc-4f81-8562-3cb1196809d3 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) MachineType: TOSHIBA SATELLITE L735 ProcEnviron: LANGUAGE=fr_FR:fr:en_US:en TERM=xterm PATH=(custom, user) LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-21-generic root=/dev/mapper/VG1-UBUNTU ro rdblacklist=nouveau nouveau.blacklist=1 acpi_backlight=vendor clocksource=hpet rdblacklist=nouveau nouveau.blacklist=1 acpi_backlight=vendor quiet splash vt.handoff=7 SourcePackage: linux StagingDrivers: rts5139 mei UpgradeStatus: Upgraded to precise on 2012-03-10 (23 days ago) dmi.bios.date: 02/10/2012 dmi.bios.vendor: INSYDE dmi.bios.version: 2.20 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Base Board Product Name dmi.board.vendor: Intel Corp. dmi.board.version: Base Board Version dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis Manufacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnINSYDE:bvr2.20:bd02/10/2012:svnTOSHIBA:pnSATELLITEL735:pvrPSK0CE-00900LFR:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion: dmi.product.name: SATELLITE L735 dmi.product.version: PSK0CE-00900LFR dmi.sys.vendor: TOSHIBA --- ApportVersion: 2.5.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: michel 3640 F.... pulseaudio /dev/snd/controlC0: michel 3640 F.... pulseaudio CRDA: country FR: (2402 - 2482 @ 40), (N/A, 20) (5170 - 5250 @ 40), (N/A, 20) (5250 - 5330 @ 40), (N/A, 20), DFS (5490 - 5710 @ 40), (N/A, 27), DFS CheckboxSubmission: 1ea6109db29b53f721a523a77b7f3abf CheckboxSystem: d00f84de8a555815fa1c4660280da308 DistroRelease: Ubuntu 12.10 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=b49c11a6-09a7-4da7-9efa-500df0c9d257 MachineType: TOSHIBA SATELLITE L735 NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/UBUNTU/@boot/vmlinuz-3.5.0-12-generic root=/dev/mapper/VG1-BTR_POOL ro rootflags=subvol=UBUNTU/@ rdblacklist=nouveau nouveau.blacklist=1 acpi_osi=Linux acpi_backlight=vendor quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.5.0-12.12-generic 3.5.2 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/michel not ours. No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.5.0-12-generic N/A linux-backports-modules-3.5.0-12-generic N/A linux-firmware 1.90 StagingDrivers: rts5139 Tags: quantal staging Uname: Linux 3.5.0-12-generic x86_64 UpgradeStatus: Upgraded to quantal on 2012-08-28 (0 days ago) UserGroups: dmi.bios.date: 06/26/2012 dmi.bios.vendor: INSYDE dmi.bios.version: 2.50 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Base Board Product Name dmi.board.vendor: Intel Corp. dmi.board.version: Base Board Version dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis Manufacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnINSYDE:bvr2.50:bd06/26/2012:svnTOSHIBA:pnSATELLITEL735:pvrPSK0CE-00900LFR:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion: dmi.product.name: SATELLITE L735 dmi.product.version: PSK0CE-00900LFR dmi.sys.vendor: TOSHIBA~ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+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
