https://bugs.freedesktop.org/show_bug.cgi?id=76284
--- Comment #4 from Sylvain BERTRAND sylvain.bertrand@gmail.com --- My desktop is native at 1920x1200.
I started dota2. I switched in the options the resolution from 1920x1200 to 1200x800-->dota2 display corruption.
Nearly blind, namely by guessing the location of the buttons on the screen, I was able to quit dota2 to the desktop (non compositing xfce4 desktop).
The desktop display is not corrupted.
If I start again dota2, the resolution will be fine at 1200x800.
It is the same pb if I switch on/off vsync in dota2 options.