brigthness set to 0 when switching to a graphical console

[Ludwin Janvier]

Binary package hint: xorg

I have a thinkpad R50e, which has a intel 82852/855GM.
I like my brightness level to be at the maximum value (7).
In /sys/devices/virtual/backlight/thinkpad_screen, I have :
actual_brightness : 7
brightness : 7
When I switch from a graphical console (VT7) to a text console (VT1) using ctrl-alt-f1, the brightness is kept.
When I switch from a text console (VT1) or a graphical console to a graphical console (VT8) using ctrl-alt-fX, the brightness is set at its minimal level (0).
actual_brightness : 0
brightness : 0
I have the same result with the user-switch applet.
I didn't have this issue with karmic.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
Date: Sun May 23 10:51:06 2010
DkmsStatus: Error: [Errno 2] Aucun fichier ou dossier de ce type
MachineType: IBM 18342PG
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=ac1840fc-c999-4b5e-9433-a1942a449008 ro splash
ProcEnviron:
 LANGUAGE=fr_FR:fr
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 11/01/2004
dmi.bios.vendor: IBM
dmi.bios.version: 1WET64WW (1.20 )
dmi.board.name: 18342PG
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr1WET64WW(1.20):bd11/01/2004:svnIBM:pn18342PG:pvrThinkPadR50e:rvnIBM:rn18342PG:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 18342PG
dmi.product.version: ThinkPad R50e
dmi.sys.vendor: IBM
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-22-generic
xkbcomp:
 Error: command ['xkbcomp', ':0', '-w0', '-'] failed with exit code 1: No protocol specified
 Error: Cannot open display ":0"
                   Exiting

[Ludwin Janvier (lud-janvier)]

Forget to mention that I had to enable KMS due to a GPU freeze after upgrading to karmic, using "options i915 modeset=1".

I have another issue : my cursor is disappearing after closing & re-opening the lid. Have to change the VT & come back to get the cursor back.

Seems this three issues are connected, because after switching to linux-image-2.6.34-020634-generic_2.6.34-020634_i386, it solved all this bugs at the same time (brightness and cursor).

[Ludwin Janvier (lud-janvier)]

bug fix is in 2.6.34

[Ludwin Janvier (lud-janvier)]

Moreover, switching to 2.6.34 solved the GPU freeze, without having to re-enable KMS!