[  1642.964] (--) evdev: ThinkPad Extra Buttons: Vendor 0x17aa Product 0x5054
[  1642.964] (--) evdev: ThinkPad Extra Buttons: Found keys
[  1642.964] (II) evdev: ThinkPad Extra Buttons: Configuring as keyboard
[  1642.964] (**) Option "config_info" "udev:/sys/devices/platform/thinkpad_acpi/input/input8/event7"
[  1642.964] (II) XINPUT: Adding extended input device "ThinkPad Extra Buttons" (type: KEYBOARD, id 11)
[  1642.964] (**) Option "xkb_rules" "evdev"
[  1644.844] (II) intel(0): EDID vendor "LEN", prod id 16400
[  1644.844] (II) intel(0): Printing DDC gathered Modelines:
[  1644.844] (II) intel(0): Modeline "1280x800"x0.0   71.10  1280 1328 1360 1440  800 803 809 823 -hsync -vsync (49.4 kHz eP)
[  1644.844] (II) intel(0): Modeline "1280x800"x0.0   59.26  1280 1328 1360 1440  800 803 809 823 -hsync -vsync (41.2 kHz e)
[  1642.964] (--) evdev: ThinkPad Extra Buttons: Vendor 0x17aa Product 0x5054
[  1642.964] (--) evdev: ThinkPad Extra Buttons: Found keys
[  1642.964] (II) evdev: ThinkPad Extra Buttons: Configuring as keyboard
[  1642.964] (**) Option "config_info" "udev:/sys/devices/platform/thinkpad_acpi/input/input8/event7"
[  1642.964] (II) XINPUT: Adding extended input device "ThinkPad Extra Buttons" (type: KEYBOARD, id 11)
[  1642.964] (**) Option "xkb_rules" "evdev"
[  1644.844] (II) intel(0): EDID vendor "LEN", prod id 16400
[  1644.844] (II) intel(0): Printing DDC gathered Modelines:
[  1644.844] (II) intel(0): Modeline "1280x800"x0.0   71.10  1280 1328 1360 1440  800 803 809 823 -hsync -vsync (49.4 kHz eP)
[  1644.844] (II) intel(0): Modeline "1280x800"x0.0   59.26  1280 1328 1360 1440  800 803 809 823 -hsync -vsync (41.2 kHz e)
[  3593.301] (EE) 
[  3593.302] (EE) Backtrace:
[  3593.302] (EE) 0: /usr/bin/Xorg (xorg_backtrace+0x80) [0x562fa4a33160]
[  3593.302] (EE) 1: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x28305) [0x7f8357708305]
[  3593.302] (EE) 2: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x327bc) [0x7f83577127bc]
[  3593.302] (EE) 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x4230f) [0x7f835772230f]
[  3593.302] (EE) 4: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x53ef6) [0x7f8357733ef6]
[  3593.302] (EE) 5: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x5f520) [0x7f835773f520]
[  3593.302] (EE) 6: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f83576e0000+0x94630) [0x7f8357774630]
[  3593.302] (EE) 7: /usr/bin/Xorg (0x562fa4844000+0x1583fa) [0x562fa499c3fa]
[  3593.302] (EE) 8: /usr/bin/Xorg (0x562fa4844000+0x52ca4) [0x562fa4896ca4]
[  3593.302] (EE) 9: /usr/bin/Xorg (0x562fa4844000+0x57868) [0x562fa489b868]
[  3593.302] (EE) 10: /lib64/libc.so.6 (__libc_start_main+0xf6) [0x7f835aa864b6]
[  3593.302] (EE) 11: /usr/bin/Xorg (_start+0x2a) [0x562fa488213a]
[  3593.302] (EE) 
[  3593.303] (EE) 
Fatal server error:
[  3593.303] (EE) kgem_bo_free:2541 assertion 'bo->exec == NULL' failed
[  3593.303] (EE) 
[  3593.303] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[  3593.303] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[  3593.303] (EE) 
[  3593.303] (II) AIGLX: Suspending AIGLX clients for VT switch
[  3593.422] (EE) Server terminated with error (1). Closing log file.