Comment 35 for bug 1021517

An there we have in XorgLogOld.txt:

[ 51063.179] (II) intel(0): Modeline "1366x768"x0.0 69.30 1366 1414 1446 1454 768 771 777 793 -hsync -vsync (47.7 kHz)
[ 51072.829]
Backtrace:
[ 51072.829] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f99d5fa4996]
[ 51072.829] 1: /usr/bin/X (0x7f99d5e1c000+0x18c83a) [0x7f99d5fa883a]
[ 51072.829] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f99d5142000+0xfcb0) [0x7f99d5151cb0]
[ 51072.829] 3: /usr/bin/X (0x7f99d5e1c000+0x5e71a) [0x7f99d5e7a71a]
[ 51072.829] 4: /usr/bin/X (0x7f99d5e1c000+0x58070) [0x7f99d5e74070]
[ 51072.829] 5: /usr/bin/X (0x7f99d5e1c000+0x1230ef) [0x7f99d5f3f0ef]
[ 51072.829] 6: /usr/bin/X (0x7f99d5e1c000+0x4e8b1) [0x7f99d5e6a8b1]
[ 51072.829] 7: /usr/bin/X (0x7f99d5e1c000+0x3d6da) [0x7f99d5e596da]
[ 51072.829] 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f99d3fd776d]
[ 51072.829] 9: /usr/bin/X (0x7f99d5e1c000+0x3d9d1) [0x7f99d5e599d1]
[ 51072.829] Segmentation fault at address 0x28
[ 51072.829]
Caught signal 11 (Segmentation fault). Server aborting
[ 51072.829]
Please consult the The X.Org Foundation support
  at http://wiki.x.org
 for help.
[ 51072.829] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 51072.829]
[ 51072.832] (II) evdev: Power Button: Close
[ 51072.832] (II) UnloadModule: "evdev"