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Bug 104304 - opengl and xinerama: opengl widgets are displayed on primary screen only
Summary: opengl and xinerama: opengl widgets are displayed on primary screen only
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] KDE (show other bugs)
Hardware: x86 Linux
: High normal (vote)
Assignee: Gentoo X packagers
Depends on:
Reported: 2005-08-30 14:33 UTC by Daniel Franke
Modified: 2006-06-28 12:27 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Daniel Franke 2005-08-30 14:33:54 UTC
Xinerama setup, two screens, KDE-3.4.2: I found that any opengl widget  
(glxgear [xorg], qt opengl examples [qt], opengl screen savers [kde]) is 
displayed on primary screen (left) only.  If moved to the secondary screen 
(right), any opengl-widget "vanishes" and  reappears only if moved back to the 
right screen.   
Please find a more detailed description at:  
If this is the wrong place to report this issue, please point me wherever  
appropiate - thanks.  

Reproducible: Always
Steps to Reproduce:

Expected Results:  

Installed versions:  
 * x11-base/xorg-x11-6.8.2-r2  -3dfx -3dnow +bitmap-fonts -cjk -debug  
-dlloader -dmx -doc -font-server -insecure-drivers +ipv6 -minimal -mmx -nls  
-nocxx +opengl +pam -sdk -sse -static +truetype-fonts +type1-fonts (-uclibc)  
-xprint +xv  
 * x11-libs/qt-3.3.4-r3  +cups +debug +doc +examples -firebird +gif -immqt  
-immqt-bc +ipv6 -mysql -nas -odbc +opengl -postgres -sqlite +xinerama +zlib  
Please let me know if anything else is needed.
Comment 1 Caleb Tennis (RETIRED) gentoo-dev 2005-08-30 17:14:10 UTC is the right place for this.  you're not using the nvidia drivers
are you?
Comment 2 Daniel Franke 2005-08-31 00:45:51 UTC
nope, got a Matrox G550. 
Comment 3 Daniel Franke 2005-08-31 23:32:06 UTC
A completely different setup works:  
SuSE 8.x, KDE-3.4.0 (compiled from sources), Qt-3.3.4, XFree-4.3.0 xinerama 
enabled, Matrox G550  
  -> glxgears works fine on both screens  
Reported as well to: 
Comment 4 Gregorio Guidi (RETIRED) gentoo-dev 2005-09-19 03:20:34 UTC
Reassigning as suggested in 
Comment 5 Donnie Berkholz (RETIRED) gentoo-dev 2005-09-19 09:42:22 UTC
Please give a test so we have a clue whether it's been fixed in the
past few months.

You can save a backup of your current xorg install first using `quickpkg xorg-x11`.
Comment 6 Donnie Berkholz (RETIRED) gentoo-dev 2006-03-31 19:06:25 UTC
This is an upstream Mesa bug. If it's still an issue with modular X (7.0), please file a bug at in the Mesa product and post the URL here.
Comment 7 Daniel Franke 2006-06-28 12:27:59 UTC
Found another discussion at the matrox forum:

Summary: maybe a problem with mga drivers (binary distribution).