Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.3 kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.
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. [1] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-rc7-precise/ ** Tags added: kernel-da-key needs-upstream-testing -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/527157 Title: Brightness controls skips Levels. Status in “gnome-power-manager” package in Ubuntu: Triaged Status in “gnome-power-manager” package in Arch Linux: New Bug description: Binary package hint: gnome-power-manager Expected: Hitting brightness up key or brightness down key changes brightness by one level out of 15. Actual: Hitting brightness up key or brightness down key changes brightness by two or three levels out of 15. When I use the brightness control keys from a fresh install, the brightness jumps THREE increments. By creating /etc/modprobe.d/video.conf and setting options video brightness_switch_enabled = 0 I reduce this to consistently TWO brightness events, but this is still double the normal events. If I kill gnome-power-manager, it returns to single brightness events. when hitting brightness up/down with gnome-power-manager, udevmonitor shows UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[1267026969.897008] change /devices/virtual/backlight/acpi_video0 (backlight) UDEV [1267026969.898270] change /devices/virtual/backlight/acpi_video0 (backlight) KERNEL[1267026969.903078] change /devices/virtual/backlight/acpi_video0 (backlight) UDEV [1267026969.903842] change /devices/virtual/backlight/acpi_video0 (backlight) KERNEL[1267026971.355970] change /devices/virtual/backlight/acpi_video0 (backlight) UDEV [1267026971.357418] change /devices/virtual/backlight/acpi_video0 (backlight) with gnome-power-manager not running, it shows no events. Before: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 25 Brightness up pressed: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 40 With options video brightness_switch_enabled = 0: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 25 Brightness up pressed: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 35 With brightness_switch_enabled=0 and gnome-power-manager not running: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 25 Brightness up pressed: cat /proc/acpi/video/IGD0/LCD/brightness levels: 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 current: 30 Description: Ubuntu lucid (development branch) Release: 10.04 xserver-xorg-video-intel: Installed: 2:2.9.1-1ubuntu1 Candidate: 2:2.9.1-1ubuntu1 Version table: *** 2:2.9.1-1ubuntu1 0 500 http://archive.linux.duke.edu lucid/main Packages 100 /var/lib/dpkg/status gnome-power-manager: Installed: 2.29.1-0ubuntu2 Candidate: 2.29.1-0ubuntu2 Version table: *** 2.29.1-0ubuntu2 0 500 http://archive.linux.duke.edu lucid/main Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/527157/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
