Red Hat Bugzilla – Bug 306921
[workaround] TP R61, T61 with Intel 3100 - TV out is on by default, bad resolution selected
Last modified: 2018-04-11 11:59:56 EDT
Description of problem:
I have a ThinkPad R61 with an Intel X3100 driver. After start, rhgb, gdm and
de itself are not rendered on the whole screen as 1024x768 resolution is
selected (native is 1440x960). You can move the mouse pointer over whole
screen, but panels, windows etc are rendered in upper-left hand corner only.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. grab a thinkpad with a 3100 intel card (R61 and T61 are affected for sure)
2. start system with rhgb or boot into runlevel 5
3. DE/gdm not rendered correctly
wrong resulution selected
the correct resulution selected
There is a workaround proposed by someone of fedoraforum.org. The root cause
is TV output being on, as one can see with xrandr -q. Disabling the TV output
with the following lines does the trick for me:
Option "Disable" "true"
and also adding this to the videocard "Device" section:
Option "monitor-TV" "TVOutput"
Created attachment 207071 [details]
The original xorg.conf as generated after install
Created attachment 207081 [details]
my working xorg.conf
Created attachment 207101 [details]
An xorg log showing the TV as "connected"
*** This bug has been marked as a duplicate of 285001 ***