Created attachment 734106 [details]
When using multiple qxl devices + xinerama, or multiple qxl devices with each being a separate screen (*), the only way to set the resolution is through xorg.conf, but for resolutions higher then 1026x768 this fails with the following error in Xorg.conf:
[ 8.480] (II) qxl(0): Not using mode "1280x1024@60Hz" (height too large for virtual size)
I'll attach an example xorg.conf for a setup with 3 qxl devices where each is mapped to a separate Screen, and each should come up with a resolution of 1280x1024, but instead comes up with 1024x768.
*) Having each card as a separate screen is useful for running old proprietary X applications which were designed for multi monitor setups at a time that that still meant 1 screen per monitor.
*** Bug 918297 has been marked as a duplicate of this bug. ***
*** Bug 921909 has been marked as a duplicate of this bug. ***
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.