Created attachment 577158 [details] Xorg.0.log My X server fell over twice today - I think I was using Epiphany in both cases. Xorg.log shows a cash in glXDRIinvalidateBuffers called fromDRI2SwapBuffers. $ rpm -q xorg-x11-server-Xorg mesa-libGL.x86_64 xorg-x11-drv-intel xorg-x11-server-Xorg-1.12.0-2.fc17.x86_64 mesa-libGL-8.0.2-2.fc17.x86_64 xorg-x11-drv-intel-2.18.0-1.fc17.x86_64
*** This bug has been marked as a duplicate of bug 811741 ***