Crash while switching between OpenGL window and other window
Submitted by Mathias Brodala
Assigned to Default DRI bug account
Description
Thanks to the Unigine Heaven demo I was finally able to reliably reproduce an issue which I only experienced with Mplayer before.
Upon switching back and forth between one window where OpenGL is used and another one, quickly the whole input and output of X freezes followed by a hard restart of my system a few moments later.
Conditions to reproduce here:
-
Have the Composite extension enabled
- the crash does not occur without the Composite extension
- disabling Compositing in my WM (Xfwm4, uses XRender) does prevent the crashes
-
Have rencer acceleration enabled
- Setting RenderAccel to "Off" prevents the crashes
- Crashes occur both with EXA as well as XAA
-
Start an application which opens an OpenGL context with a least amount of complexity wrt the graphics
- Crash is reproducible with Mplayer using the GL video output
- Also reproducible with the Unigine Heaven demo
- Not reproducible with glxgears (seemingly too simple)
-
Open another application window and start switching back and forth between those two
Due to the hard restart I am currently unable to find any traces of debugging information so help for getting started on this is greatly appreciated.
I am aware that there are quite a few other reports which sound similar to this one and I thought about adding a comment on these. However, without any additional info to add, my comment wouldn’t be that much worth. Thus I am mostly hoping for help on gathering as much information as possible.
Aside from using the latest Mesa git master I am also using the latest git master of the xf86-video-ati DDX.
(I also wanted to spare you from this lengthy message in #dri-devel ;-) )
Version: git