Comment 29 for bug 91849

@Bryce

I tested your driver but no luck.

Here you have new backtrace

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x81) [0x80c9581]
1: [0xffffe420]
2: /usr/lib/xorg/modules//libxaa.so [0xb7b4201d]
3: /usr/bin/X [0x811e0a9]
4: /usr/bin/X [0x817be77]
5: /usr/bin/X [0x8176ee0]
6: /usr/bin/X(ValidateGC+0x25) [0x809d1c5]
7: /usr/bin/X [0x817c64c]
8: /usr/bin/X [0x817ca7f]
9: /usr/bin/X [0x81780f1]
10: /usr/bin/X(compPaintWindowBackground+0x6d) [0x810a77d]
11: /usr/bin/X(miWindowExposures+0xfa) [0x81265ea]
12: /usr/bin/X [0x80debbc]
13: /usr/bin/X(miHandleValidateExposures+0x78) [0x813e168]
14: /usr/bin/X(MapWindow+0x3e7) [0x807b857]
15: /usr/bin/X(ProcMapWindow+0x59) [0x808edb9]
16: /usr/bin/X [0x81575b1]
17: /usr/bin/X(Dispatch+0x1aa) [0x808f47a]
18: /usr/bin/X(main+0x495) [0x8076f05]
19: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7d73050]
20: /usr/bin/X(FontFileCompleteXLFD+0x1e1) [0x8076241]

Fatal server error:
Caught signal 11. Server aborting

P.S.: You put Bug 81512 as a duplicate of this bug not adding intel xserver as package affected. (it was even high rated)