I have eventually found a way to obtain detailed debug info when X server crashing. I am executing the following command from a text console: sudo gdb -p $(pidof X) -batch -ex 'handle all nostop' -ex 'handle all pass' -ex 'handle 11 stop' -ex 'cont' -ex 'bt full' -ex 'cont' > ~/Xcrash.txt Then I return back to the graphical session and try to trigger the crash. I have collected already a few of such backtraces, and I am a bit surprised that apparently they ALL are VERY different. In general, it seems as if KWin erases some important stuff that is further dereferenced in libdrm functions, and it is rather random which function will trigger the crash.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/974041 Title: KWin option of auto-suspending for fullscreen windows often causes X to crash in libdrm_intel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/974041/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
