00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wimbledon XT [Radeon HD 7970M] (rev ff)

xorg server 1.15.1 stable,
mesa, glamor, xf86-video-intel and xf86-video-ati from very recent git.

I am "testing" with mass effect 1 in a 1920x1080 wine virtual desktop.

The trouble is mainly with minimizing and restoring windows.


OpenGL/GLX Compositing (kwin): I have still this issue https://bugs.freedesktop.org/show_bug.cgi?id=69101
So on the first start of the game the graphical output is (almost?) always stuck at the splash screen and I have to press the ctrl+alt+f12 hotkey to disable and re-enable compositing. When minimizing and restoring the window it has about 2/3 chance or so that it will not render and I have to minimize or disable/re-enable etc.

Xrender Compositing with both compton --backend xrender and kwin:
The above problem with not rendering does not happen with xrender compositing. Instead: When minimizing the wine window, the game will render over everything on all workspaces while minimized.


I can provoke a graphical output hang when:
1. Use kwin with opengl compositing.
2. Minimize and restore until it hangs.
3. While it hangs, switch to compton --xrender.
Then the graphical output and does *not* recover with disabling/reenabling compositing or minimizing/restoring multiple times, I have to kill it...

The game itself doesn't hang, I can hear the results of input etc. It's just the graphical output.

I have no idea how to try to debug this, but I will see if it is possible for me to find out more about why this happens.