| 2007-04-09 11:04:57 |
Roy Badami |
bug |
|
|
added bug |
| 2007-12-04 22:49:38 |
Brian Murray |
None: status |
New |
Incomplete |
|
| 2007-12-04 22:49:38 |
Brian Murray |
None: assignee |
|
brian-murray |
|
| 2008-04-03 19:57:36 |
emerging |
bug |
|
|
added attachment '04032008(001).jpg' (Garbled screen with the trident driver on Trident XP4m32) |
| 2008-06-09 20:47:05 |
Brian Murray |
None: status |
Incomplete |
New |
|
| 2008-06-09 20:47:05 |
Brian Murray |
None: assignee |
brian-murray |
|
|
| 2008-07-03 18:40:04 |
Bryce Harrington |
xorg: status |
New |
Incomplete |
|
| 2008-07-03 18:40:04 |
Bryce Harrington |
xorg: importance |
Undecided |
High |
|
| 2008-07-20 11:23:07 |
a.h() |
bug |
|
|
added attachment 'xorg.conf' (My xorg.conf) |
| 2008-07-30 00:03:53 |
Bryce Harrington |
xserver-xorg-video-trident: importance |
High |
Undecided |
|
| 2008-07-30 08:52:06 |
a.h() |
bug |
|
|
added attachment 'Xorg.0.log' (Xorg.0.log) |
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: status |
Incomplete |
Triaged |
|
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: title |
Bug #104745 in xserver-xorg-video-trident (Ubuntu): "Change Toshiba Portege R100 screen brightness corrupts X resolution" |
Bug #104745 in linux (Ubuntu): "Change Toshiba Portege R100 screen brightness corrupts X resolution" |
|
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: importance |
Undecided |
Medium |
|
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: bugtargetname |
xserver-xorg-video-trident (Ubuntu) |
linux (Ubuntu) |
|
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: statusexplanation |
We need /var/log/Xorg.0.log, not xorg.conf (although thanks for including it too). Leaving as Incomplete since we still don't have the info needed to conduct troubleshooting. |
|
|
| 2008-11-06 23:10:01 |
Bryce Harrington |
xserver-xorg-video-trident: bugtargetdisplayname |
xserver-xorg-video-trident (Ubuntu) |
linux (Ubuntu) |
|
| 2008-11-06 23:10:52 |
Bryce Harrington |
title |
Change Toshiba Portege R100 screen brightness corrupts X resolution |
acpi power state changes result in corrupted display [Toshiba Portege R100] |
|
| 2008-11-06 23:13:05 |
Bryce Harrington |
description |
On my Toshiba Portege R100 laptop, with trident driver, any attempt to change the display brightness results in an incorrect resolution. The screen image is displayed too large by a factor of approximately 2, with only the top left quadrant of the desktop being visible. This is with Feisty Beta.
This is particularly troublesome because by default the screen brightness is set after logging in... And also when switching between battery and AC.
As virtual consoles aren't working either, the only workaround when this happens is to kill X with Ctrl-Alt-Backspace and log in again.
Repeat by:
Boot up and log in,
or,
echo 'brightness: 6' > /proc/acpi/toshiba/lcd # assuming brighness not already at 6 |
[Problem]
Toshiba Portege R100 hardware has broken ACPI for handling power state changes (e.g. brightness settings), resulting in a corrupted display. It requires changes to kernel parameters to make the issue go away, as described in this article:
http://ubuntuforums.org/archive/index.php/t-533793.html
[Original Report]
On my Toshiba Portege R100 laptop, with trident driver, any attempt to change the display brightness results in an incorrect resolution. The screen image is displayed too large by a factor of approximately 2, with only the top left quadrant of the desktop being visible. This is with Feisty Beta.
This is particularly troublesome because by default the screen brightness is set after logging in... And also when switching between battery and AC.
As virtual consoles aren't working either, the only workaround when this happens is to kill X with Ctrl-Alt-Backspace and log in again.
Repeat by:
Boot up and log in,
or,
echo 'brightness: 6' > /proc/acpi/toshiba/lcd # assuming brighness not already at 6 |
|
| 2008-11-06 23:13:26 |
Bryce Harrington |
bug |
|
|
assigned to acpi-support (Ubuntu) |
| 2009-04-14 15:37:07 |
Tim Gardner |
linux (Ubuntu): status |
Triaged |
In Progress |
|
| 2009-04-14 15:37:07 |
Tim Gardner |
linux (Ubuntu): assignee |
|
Tim Gardner (timg-tpi) |
|
| 2009-08-16 17:03:48 |
a.h() |
attachment added |
|
The working xorg.conf http://launchpadlibrarian.net/30394565/xorg.conf.good |
|
| 2009-08-17 17:07:04 |
Steve Langasek |
acpi-support (Ubuntu): status |
New |
Invalid |
|
| 2010-08-27 14:51:24 |
Tim Gardner |
linux (Ubuntu): assignee |
Tim Gardner (timg-tpi) |
|
|
| 2011-01-12 18:38:54 |
Jeremy Foshee |
linux (Ubuntu): status |
In Progress |
Triaged |
|
| 2012-11-08 11:28:43 |
Thomas Hotz |
bug |
|
|
added subscriber Thomas Hotz |
| 2012-11-08 11:28:45 |
Thomas Hotz |
linux (Ubuntu): status |
Triaged |
Incomplete |
|
| 2012-11-08 12:41:38 |
Thomas Hotz |
linux (Ubuntu): status |
Incomplete |
Invalid |
|
