Red Hat Bugzilla – Bug 217792
Main head on dual-head radeon does 800x600 instead of configured resolution
Last modified: 2014-08-31 19:28:34 EDT
Description of problem:
I hand-edited the xorg.conf generated by system-config-display (see bz#217788)
and replaced the Modes line for Screen1 with a copy of the one from Screen0:
'Modes "1600x1200" "1600x1024" "1440x900" "1400x1050" "1280x1024"
"1280x960" "1280x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"'
and started the X server. The right head came up at 1600x1200, but the left
head is doing only 800x600.
The display card in question is:
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY
Version-Release number of selected component (if applicable):
Steps to Reproduce:
2.Look at the two heads
800x600 on left, 1600x1200 on right
1600x1200 on both
This worked semi-fine on RHEL3, although X would do unpleasant things like
segfault if I used the wrong cables or had the input selector switches on the
monitors in the wrong positions.
Since this bugzilla report was filed, there have been several major updates,
which may have resolved this issue. Users who have experienced this problem are
encouraged to upgrade their system to the latest version of their distribution
Please, if you experience this problem on the up-to-date system, let us now in
the comment for this bug, or whether the upgraded system works for you.
If you won't be able to reply in one month, I will have to close this bug as
INSUFFICIENT_DATA. Thank you.