Created attachment 120728 [details]
Screenshot taken depicting issues experienced
I experienced this bug in Arch Linux starting approximately two or three weeks ago, and am experiencing it under Ubuntu 14.04 LTS as of today.
This bug appears on any DE or program that uses OpenGL for compositing and is persistent through multiple power cycles, occurs with any number of monitors connected, and what appears to bypass these issues is (on desktops that allow doing so, such as Plasma) the use of Xrender or CPU rendering.
If any additional information is required I can add it. Thanks in advance for any help.
Perhaps it's obvious to everyone but me... what's wrong in that screenshot? The dithering on the background?
(In reply to Ilia Mirkin from comment #1)
> Perhaps it's obvious to everyone but me... what's wrong in that screenshot?
> The dithering on the background?
It has major artifacts when moving windows and text that hasn't been refreshed in a bit gets increasingly blurred out to the point it is unreadable. A description of the problem can be found here:
"no window effects that I could see. I checked in system settings and realized it was running with Xrender instead of OpenGL, but when I tried to change it I started getting weird artifacts, supersaturation, and odd glitches. Almost all fonts became impossible to read."
and what has lead my here is documented on pages 115 and 116 here:
Please attach your xorg log and dmesg output.
Created attachment 120775 [details]
Created attachment 120776 [details]
Changing status to medium-major, as although this likely only affects a couple users it is of major importance to those users as it causes an inability to normally use Mesa and is a persistent, system wide, issue.
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/566.