Public bug reported: Since my upgrade from Lubuntu 14.04 to 14.10, my backlight controls (hotkeys to increase/decrease brightness) no longer work on my Dell Inspiron Mini 10. With 14.04 and earlier versions there was no problem.
There are entries under /sys/class/backlight. I have also tried booting with acpi_backlight=vendor. After rebooting with that option, there was a dell entry under /sys/class/backlight, but this didn't fix the problem. Trying to pass brightness values to the files under /sys/class/backlight didn't change brightness either (I believe I tried all of them). I'll try to add the attachments recommended by https://wiki.ubuntu.com/Kernel/Debugging/Backlight in a moment. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-24-generic 3.16.0-24.32 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic i686 ApportVersion: 2.14.7-0ubuntu8 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rb706 1823 F.... lxpanel CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: 'iw' CurrentDesktop: LXDE Date: Wed Nov 12 20:22:11 2014 HibernationDevice: RESUME=UUID=85e4a4ec-638f-4cac-820e-4f458beed81c InstallationDate: Installed on 2013-09-16 (422 days ago) InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Release i386 (20130423.1) MachineType: Dell Inc. Inspiron 1010 ProcFB: 0 psbdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=9116d68a-2def-4507-83f0-9e895e68e835 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.16.0-24-generic N/A linux-backports-modules-3.16.0-24-generic N/A linux-firmware 1.138 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-11-10 (2 days ago) dmi.bios.date: 07/23/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0R990K dmi.board.vendor: Dell Inc. dmi.board.version: A07 dmi.chassis.asset.tag: ********** dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A07 dmi.modalias: dmi:bvnDellInc.:bvrA07:bd07/23/2009:svnDellInc.:pnInspiron1010:pvrA07:rvnDellInc.:rn0R990K:rvrA07:cvnDellInc.:ct8:cvrA07: dmi.product.name: Inspiron 1010 dmi.product.version: A07 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: apport-bug i386 utopic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1392024 Title: Backlight control not working Dell Insprion Mini 10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1392024/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
