[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
Thomas Christensen, could you please test for this is Saucy and advise on the results via http://cdimage.ubuntu.com/daily-live/current/ ? ** Tags added: quantal ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
** Description changed: - Description: Ubuntu 13.04 - Release: 13.04 - - linux-image-generic: - Installed: 3.8.0.21.37 - Candidate: 3.8.0.21.37 - Version table: - *** 3.8.0.21.37 0 - 500 http://ubuntu-archive.sit.kmutt.ac.th/ raring-updates/main amd64 Packages - 500 http://ubuntu-archive.sit.kmutt.ac.th/ raring-security/main amd64 Packages - 100 /var/lib/dpkg/status - 3.8.0.19.35 0 - 500 http://ubuntu-archive.sit.kmutt.ac.th/ raring/main amd64 Packages - Brightness control visible but does nothing on 13.04... The brightness up down buttons shows the overlay brightness icon going up and down but it does not change the brightness (backlight). I have tried adjusting the kernel options acpi_osi=x and acpi_backlight=y (that did work with 12.10) to make it work but to no avail. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-generic 3.8.0.21.37 ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8 Uname: Linux 3.8.0-21-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: thomasc2007 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: thomasc2007 F pulseaudio Date: Mon May 20 12:45:35 2013 HibernationDevice: RESUME=UUID=2acc4a8c-a645-4f3c-bc8e-5c7a9d9df417 InstallationDate: Installed on 2013-04-11 (38 days ago) InstallationMedia: Ubuntu-GNOME 13.04 Raring Ringtail - Alpha amd64 (20130410) MachineType: Acer Aspire V5-431 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=4cfdb2ed-677a-4fd0-aa7d-5b118700bd35 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.8.0-21-generic N/A - linux-backports-modules-3.8.0-21-generic N/A - linux-firmware1.106 + linux-restricted-modules-3.8.0-21-generic N/A + linux-backports-modules-3.8.0-21-generic N/A + linux-firmware1.106 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/12/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: V1.20 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire V5-431 dmi.board.vendor: Acer dmi.board.version: V1.20 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Acer dmi.chassis.version: V1.20 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV1.20:bd12/12/2012:svnAcer:pnAspireV5-431:pvrV1.20:rvnAcer:rnAspireV5-431:rvrV1.20:cvnAcer:ct9:cvrV1.20: dmi.product.name: Aspire V5-431 dmi.product.version: V1.20 dmi.sys.vendor: Acer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
With kernel 3.10: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-saucy/ I got this message in the kernel log: acer_wmi: Brightness must be controlled by acpi video driver So I edited GRUB_CMDLINE_LINUX_DEFAULT in /etc/defaults/grub to look like this: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor and now it's now working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
I installed http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-saucy/ and noticed the following message in the kernel log upon booting: [9.293508] acer_wmi: Brightness must be controlled by acpi video driver So i added acpi_backlight=vendor to the kernel boot parms, and now it's working fine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
I'm effected by this problem or a similar issue as well. Give this a try and see what you get; when using your hotkeys continue to hold down the hotkey (for example if your stuck all the way up, use your hotkey to turn it all the way down and continue to hold the down hotkey for a period of usually 15 seconds or so). On my machine this will eventually change the backlight brightness, leading me to believe the problem is something to do with when the kernel is checking for changes in the control files. Incidentally I can also get the backlight to change to, at least close, to what I want by toggling back and forth between the level I want, and the level above or below it, for example if I want it set at 3, I can toggle back and forth between 3 and 4 and eventually it will change to one of those two levels, not how its supposed to work but better than all the way up or all the way down. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.10 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-rc2-saucy/ ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1181927] Re: 13.04: Brightness control visible but does nothing
I have installed 3.10.0-031000rc2-generic. I am not sure exactly what to report for the following reasons: 1. I am now getting /sys/class/backlight/intel_backlight which I didn't have before, and adjusting the brightness by echoing to 'brightness' in that folder works. 2. The hotkeys shows the brightness overlay but doesn't change the brightness. So it's kind of fixed in that I can change the brightness, but at the same time the hotkeys don't work. I haven't messed with acpi_osi and acpi_backlight kernel parms. Let me know what you think I should do for the next step. My /etc/default/grub is: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash GRUB_CMDLINE_LINUX= -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: 13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
