Laptop display maximum dim at startup
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Low
|
Unassigned |
Bug Description
Binary package hint: xorg
Laptop Lenovo T60 Thinkpad Type 8741-4GU
release -rd
Description: Ubuntu lucid (development branch)
Release: 10.04
apt-cache policy xorg
xorg:
Installed: 1:7.5+3ubuntu1
Candidate: 1:7.5+3ubuntu1
Version table:
*** 1:7.5+3ubuntu1 0
500 http://
100 /var/lib/
Display is at full dim after startup, every time. Resolution 1680x1050. Full outlet power. Xfce / Xubuntu.
I can use the keyboard to restore screen brightness to a normal level.
I would expect either full display brightness, or to retain the previous display brightness setting.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xserver-xorg 1:7.5+3ubuntu1
ProcVersionSign
Uname: Linux 2.6.32-19-generic i686
Architecture: i386
Date: Mon Apr 5 08:48:46 2010
DkmsStatus: Error: [Errno 2] No such file or directory
MachineType: LENOVO 87414GU
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 08/27/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7IET36WW (1.17 )
dmi.board.name: 87414GU
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 87414GU
dmi.product.
dmi.sys.vendor: LENOVO
glxinfo: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: lucid
architecture: i686
kernel: 2.6.32-19-generic
tags: | added: xubuntu |
Changed in xorg (Ubuntu): | |
status: | New → Confirmed |
tags: | added: regression-potential |
tags: |
added: regression-release removed: regression-potential |
affects: | xorg (Ubuntu) → linux (Ubuntu) |
Changed in linux (Ubuntu): | |
status: | Triaged → New |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Same behavior here on T42 with ATI Radeon Mobility 7500 and Kubuntu Lucid beta. The display is bright up to the kdm logon. When KDE loads, screen brightness drops to lowest at once.
I am not completely sure if it's the same problem as above, since whole brightness management by powerdevil seems to be broken. I.e. when in battery mode, the screen dims down to lowest after reaching the defined idle timeout. It doesn't come back on when moving the mouse or pressing a key, I have to use the FN-Keys (at least they work, though). When hovering the battery indicator applet, the brightness slider is down to lowest even when the screen is bright. Moving it has no instant effect like it had in Karmic. Changing the profiles doesn't help, too.
From searching for an appropriate bug here I think that it might habe something to do with the dropping of HAL and the open source radeon drivers. I'm using an non-modified X setup from a stable Karmic install and dist-upgraded to Lucid beta. It worked good in Karmic btw.
Please let me know if I can provide some more information.