apport information ** Tags added: quantal running-unity
** Description changed: Pressing Fn + Brightness Up and Down results in the brightness indicator jumping randomly up and down, with no change to the actual brightness. This laptop uses a nvidia graphics card for display and brightness which is not supported by ubuntu's default configuration. There is only one way that I have found to actually make the brightness go up and down: 1. Add acpi_osi=Linux acpi_backlight=vendor ro to /boot/grub/grub.cfg 2. Type echo 5 > /sys/class/backlight/nv_backlight/brightness And even with acpi_backlight=vendor switched on, using the Fn key to affect brightness still does not work, presumably because its trying to use dell_backlight, which does nothing. Output of ls /sys/class/backlight with acpi_backlight=vendor: root@r-Inspiron-1370:~# ls /sys/class/backlight dell_backlight nv_backlight root@r-Inspiron-1370:~# Normally this only contains acpi_video0 (off top of head so might be a typo). I think someone needs to make a patch to fix this bug. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 ArecordDevices: **** 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/controlC1: r 2030 F.... pulseaudio /dev/snd/controlC0: r 2030 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf1400000 irq 46' Mixer name : 'Realtek ALC272' Components : 'HDA:10ec0272,10280418,00100001' Controls : 11 Simple ctrls : 6 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xf1000000 irq 16' Mixer name : 'Nvidia GPU 0b HDMI/DP' Components : 'HDA:10de000b,10de0101,00100100' Controls : 24 Simple ctrls : 4 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=466a8816-87d1-4087-869f-2e4d02cbf791 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) MachineType: Dell Inc. Inspiron 1370 Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=ce5b90bb-32e1-4bb1-98c0-ba189425a158 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/r not ours. No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.2.0-24-generic N/A linux-backports-modules-3.2.0-24-generic N/A linux-firmware 1.79 SourcePackage: linux Tags: precise precise Uname: Linux 3.2.0-24-generic i686 UpgradeStatus: Upgraded to precise on 2012-05-04 (23 days ago) UserGroups: disk dmi.bios.date: 10/28/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 016YGK dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.asset.tag: None dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A02 dmi.modalias: dmi:bvnDellInc.:bvrA02:bd10/28/2009:svnDellInc.:pnInspiron1370:pvrA02:rvnDellInc.:rn016YGK:rvrA02:cvnDellInc.:ct8:cvrA02: dmi.product.name: Inspiron 1370 dmi.product.version: A02 dmi.sys.vendor: Dell Inc. + --- + ApportVersion: 2.4-0ubuntu6 + Architecture: i386 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: r 2153 F.... pulseaudio + /dev/snd/controlC0: r 2153 F.... pulseaudio + DistroRelease: Ubuntu 12.10 + HibernationDevice: RESUME=UUID=466a8816-87d1-4087-869f-2e4d02cbf791 + InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) + MachineType: Dell Inc. Inspiron 1370 + Package: linux (not installed) + ProcEnviron: + TERM=xterm + PATH=(custom, user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 nouveaufb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=ce5b90bb-32e1-4bb1-98c0-ba189425a158 acpi_osi=Linux acpi_backlight=vendor ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1 + RelatedPackageVersions: + linux-restricted-modules-3.5.0-10-generic N/A + linux-backports-modules-3.5.0-10-generic N/A + linux-firmware 1.88 + Tags: quantal running-unity + Uname: Linux 3.5.0-10-generic i686 + UpgradeStatus: Upgraded to quantal on 2012-08-14 (1 days ago) + UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare + dmi.bios.date: 10/28/2009 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: A02 + dmi.board.name: 016YGK + dmi.board.vendor: Dell Inc. + dmi.board.version: A02 + dmi.chassis.asset.tag: None + dmi.chassis.type: 8 + dmi.chassis.vendor: Dell Inc. + dmi.chassis.version: A02 + dmi.modalias: dmi:bvnDellInc.:bvrA02:bd10/28/2009:svnDellInc.:pnInspiron1370:pvrA02:rvnDellInc.:rn016YGK:rvrA02:cvnDellInc.:ct8:cvrA02: + dmi.product.name: Inspiron 1370 + dmi.product.version: A02 + dmi.sys.vendor: Dell Inc. ** Attachment added: "AcpiTables.txt" https://bugs.launchpad.net/bugs/994697/+attachment/3261991/+files/AcpiTables.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/994697 Title: Dell 1370 brightness not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/994697/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
