Red Hat Bugzilla – Bug 468843
Xdmx renders QT and GTK apps incorrectly
Last modified: 2014-06-12 13:22:55 EDT
Created attachment 321692 [details]
Patch to fix the redraw problem
Description of problem:
Running QT or GTK apps results in fonts, icons and other details either failing to draw or rendering with incorrect colours. Running Xdmx with -norender fixes the problem, but it is very slow and an unacceptable solution.
How reproducible: Every time
Steps to Reproduce:
1. Start xinit on client nodes
2. startx `which gnome-session` -- Xdmx :1 -display host1:0 -display host2:0 +xinerama
3. Many aspects of the windows fail to render. Firefox has problems too. Happens with KDE and the same apps run under twm.
I have included a patch which can be applied to the SRPM and fixes the problem.
The patch isn't correct, but I'm pretty sure the equivalent problem is still present in RHEL7.
After some digging, it looks like this is the same issue as:
Which was fixed upstream in the xserver 1.2 branch. Therefore I believe this issue is resolved in all RHEL6 and RHEL7 X servers.