Relevant backtrace from above attached Xorg.0.log.old file (and actually it may be the same crash):
[137489.471] (II) PM Event received: Capability Changed [137489.471] I830PMEvent: Capability change [137527.328] [mi] EQ overflowing. The server is probably stuck in an infinite loop. [137527.328] Backtrace: [137527.332] 0: /usr/bin/X (xorg_backtrace+0x28) [0x4a3488] [137527.332] 1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a2d04] [137527.332] 2: /usr/bin/X (xf86PostMotionEventP+0xc4) [0x47cb74] [137527.332] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f63ab639000+0x53ef) [0x7f63ab63e3ef] [137527.332] 4: /usr/bin/X (0x400000+0x6f787) [0x46f787] [137527.332] 5: /usr/bin/X (0x400000+0x11e163) [0x51e163] [137527.332] 6: /lib/libpthread.so.0 (0x7f63af84d000+0xfb50) [0x7f63af85cb50] [137527.332] 7: /usr/lib/xorg/modules/libfb.so (fbValidateGC+0x1c0) [0x7f63abf9f9a0] [137527.332] 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f63ac9ca000+0x39706) [0x7f63aca03706] [137527.332] 9: /usr/bin/X (0x400000+0xd756a) [0x4d756a] [137527.332] 10: /usr/bin/X (ValidateGC+0x24) [0x443cb4] [137527.332] 11: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f63ac9ca000+0x368df) [0x7f63aca008df] [137527.332] 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f63ac9ca000+0x37669) [0x7f63aca01669] [137527.332] 13: /lib/libdrm.so.2 (drmHandleEvent+0x103) [0x7f63ace2a703] [137527.332] 14: /usr/bin/X (WakeupHandler+0x4b) [0x435d7b] [137527.332] 15: /usr/bin/X (WaitForSomething+0x1d7) [0x45f337] [137527.332] 16: /usr/bin/X (0x400000+0x30802) [0x430802] [137527.332] 17: /usr/bin/X (0x400000+0x2616a) [0x42616a] [137527.332] 18: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f63ae7b6d8d] [137527.332] 19: /usr/bin/X (0x400000+0x25d19) [0x425d19]
Relevant backtrace from above attached Xorg.0.log.old file (and actually it may be the same crash):
[137489.471] (II) PM Event received: Capability Changed +0x28) [0x4a3488] EventP+ 0xc4) [0x47cb74] xorg/modules/ input/evdev_ drv.so (0x7f63ab639000 +0x53ef) [0x7f63ab63e3ef] .so.0 (0x7f63af84d000 +0xfb50) [0x7f63af85cb50] xorg/modules/ libfb.so (fbValidateGC+ 0x1c0) [0x7f63abf9f9a0] xorg/modules/ drivers/ intel_drv. so (0x7f63ac9ca000 +0x39706) [0x7f63aca03706] xorg/modules/ drivers/ intel_drv. so (0x7f63ac9ca000 +0x368df) [0x7f63aca008df] xorg/modules/ drivers/ intel_drv. so (0x7f63ac9ca000 +0x37669) [0x7f63aca01669] +0x103) [0x7f63ace2a703] 0x4b) [0x435d7b] ng+0x1d7) [0x45f337] start_main+ 0xfd) [0x7f63ae7b6d8d]
[137489.471] I830PMEvent: Capability change
[137527.328] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[137527.328]
Backtrace:
[137527.332] 0: /usr/bin/X (xorg_backtrace
[137527.332] 1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a2d04]
[137527.332] 2: /usr/bin/X (xf86PostMotion
[137527.332] 3: /usr/lib/
[137527.332] 4: /usr/bin/X (0x400000+0x6f787) [0x46f787]
[137527.332] 5: /usr/bin/X (0x400000+0x11e163) [0x51e163]
[137527.332] 6: /lib/libpthread
[137527.332] 7: /usr/lib/
[137527.332] 8: /usr/lib/
[137527.332] 9: /usr/bin/X (0x400000+0xd756a) [0x4d756a]
[137527.332] 10: /usr/bin/X (ValidateGC+0x24) [0x443cb4]
[137527.332] 11: /usr/lib/
[137527.332] 12: /usr/lib/
[137527.332] 13: /lib/libdrm.so.2 (drmHandleEvent
[137527.332] 14: /usr/bin/X (WakeupHandler+
[137527.332] 15: /usr/bin/X (WaitForSomethi
[137527.332] 16: /usr/bin/X (0x400000+0x30802) [0x430802]
[137527.332] 17: /usr/bin/X (0x400000+0x2616a) [0x42616a]
[137527.332] 18: /lib/libc.so.6 (__libc_
[137527.332] 19: /usr/bin/X (0x400000+0x25d19) [0x425d19]