Bug 13477 - bad graphics on dual-head screen two
Summary: bad graphics on dual-head screen two
Status: RESOLVED DUPLICATE of bug 13474
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/radeonhd (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Luc Verhaegen
QA Contact: Xorg Project Team
Depends on:
Reported: 2007-11-30 16:02 UTC by Joachim Deguara
Modified: 2007-12-03 09:54 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

camera screenshot of the middle where both screens meet (753.79 KB, image/jpeg)
2007-11-30 16:03 UTC, Joachim Deguara
no flags Details
screengrab screenshot of the desktop (174.60 KB, image/jpeg)
2007-11-30 16:04 UTC, Joachim Deguara
no flags Details

Description Joachim Deguara 2007-11-30 16:02:58 UTC
what happens is I start xdm and it is in cloned mode, next I log in and set the dual-head with xrandr which results in the artefacts on the second screen (actually DVI-I_1/digital, but since it is rightmost I call it second).  
To get rid of the artifacts I kill kwin and start fvwm (twm and openbox don't help only fvwm) then the artifact is gone and I can kill fvwm and go back to kwin all the while there is no new events in xorg.0.log since going from clone to dual-head.
This even happens if I have the second screen overlap that means both are 1280x1024 and screen two is now at offest 640x0 then there is that strip of 640x1024 which is rendered correctly on screen 1 but not on screen 2.
Comment 1 Joachim Deguara 2007-11-30 16:03:37 UTC
Created attachment 12885 [details]
camera screenshot of the middle where both screens meet
Comment 2 Joachim Deguara 2007-11-30 16:04:01 UTC
Created attachment 12886 [details]
screengrab screenshot of the desktop
Comment 3 Stefan Becker 2007-11-30 22:21:26 UTC
The effect on the external display looks exactly like in my bug #13474. I use a cloned screen though...

Probably a duplicate?
Comment 4 Joachim Deguara 2007-12-03 09:54:03 UTC
screw fvwm all I need to do is switch to the console (which is actually another card!) and come back to get it pretty.  Looks like bug #13474.

*** This bug has been marked as a duplicate of bug 13474 ***

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.