I'm not sure about the root cause of this yet, but starting here.
Pressing the brightness up/down keys on my ThinkPad T61 no longer changes the brightness of the LCD backlight. This worked fine in 8.04, and at some point in Intrepid as well.
When I press the brightness-up key, I see two ACPI events:
video LCD0 00000086 00000000
ibm/hotkey HKEY 00000080 0000501
brightness-down is similar:
video LCD0 00000087 00000000
ibm/hotkey HKEY 00000080 0000501
In xev, I see KeyPress and KeyRelease events forXF86MonBrightnessUp and XF86MonBrightnessDown, respectively.
However, the backlight is not actually changed, and gnome-power-manager does not display the brightness level OSD (both of which worked in 8.04)
Binary package hint: gnome-power-manager
[regression from 8.04]
I'm not sure about the root cause of this yet, but starting here.
Pressing the brightness up/down keys on my ThinkPad T61 no longer changes the brightness of the LCD backlight. This worked fine in 8.04, and at some point in Intrepid as well.
When I press the brightness-up key, I see two ACPI events:
video LCD0 00000086 00000000
ibm/hotkey HKEY 00000080 0000501
brightness-down is similar:
video LCD0 00000087 00000000
ibm/hotkey HKEY 00000080 0000501
In xev, I see KeyPress and KeyRelease events forXF86MonBrigh tnessUp and XF86MonBrightne ssDown, respectively.
However, the backlight is not actually changed, and gnome-power-manager does not display the brightness level OSD (both of which worked in 8.04)
ProblemType: Bug 2.6.27- 5-generic 2.6.27-5.8 [modified: lib/modules/ 2.6.27- 5-generic/ modules. pcimap lib/modules/ 2.6.27- 5-generic/ modules. dep lib/modules/ 2.6.27- 5-generic/ modules. ieee1394map lib/modules/ 2.6.27- 5-generic/ modules. usbmap lib/modules/ 2.6.27- 5-generic/ modules. isapnpmap lib/modules/ 2.6.27- 5-generic/ modules. inputmap lib/modules/ 2.6.27- 5-generic/ modules. seriomap lib/modules/ 2.6.27- 5-generic/ modules. alias lib/modules/ 2.6.27- 5-generic/ modules. symbols] 305dde78- d20a-4248- aaf4-09447b7c57 91 ro quiet splash home/username/ bin:/usr/ lib/ccache: /usr/local/ bin:/usr/ bin:/bin: /usr/bin/ X11:/sbin: /usr/sbin: /usr/games: /usr/lib/ surfraw ature: Ubuntu 2.6.27-5.8-generic
Architecture: amd64
DistroRelease: Ubuntu 8.10
Package: linux-image-
ProcCmdLine: root=UUID=
ProcEnviron:
LC_COLLATE=C
PATH=/
LANG=en_US.UTF-8
SHELL=/bin/zsh
ProcVersionSign
SourcePackage: linux