I'm seeing this problem too, and also have integrated intel graphics.
I'm on an Acer Aspire 1410. My backtraces look very similar to yours.
Here's all the data I gathered --- if more would be useful, let me know:
~$ dmesg | grep Xorg | tail -n 1
[ 750.880241] Xorg[1034]: segfault at 9 ip b7633b28 sp bfabd2a0 error 4 in
Xorg[b7513000+1f3000]
>From /var/log/Xorg.0.log.old:
[ 442.748] (II) intel(0): EDID vendor "AUO", prod id 8284
[ 442.748] (II) intel(0): Printing DDC gathered Modelines:
[ 442.748] (II) intel(0): Modeline "1366x768"x0.0 65.50 1366 1390 1406
1406 768 770 774 776 -hsync -vsync (46.6 kHz)
[ 750.764]
Backtrace:
[ 750.793] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb769b607]
[ 750.793] 1: /usr/bin/X (0xb7513000+0x18c38a) [0xb769f38a]
[ 750.793] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb74f040c]
[ 750.793] 3: /usr/bin/X (XIChangeDeviceProperty+0x1b8) [0xb7633b28]
[ 750.793] 4: /usr/bin/X (0xb7513000+0x121188) [0xb7634188]
[ 750.794] 5: /usr/bin/X (0xb7513000+0x116f77) [0xb7629f77]
[ 750.794] 6: /usr/bin/X (0xb7513000+0x3791d) [0xb754a91d]
[ 750.794] 7: /usr/bin/X (0xb7513000+0x2535a) [0xb753835a]
[ 750.794] 8: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3)
[0xb71794d3]
[ 750.794] 9: /usr/bin/X (0xb7513000+0x25699) [0xb7538699]
[ 750.794] Segmentation fault at address 0x9
[ 750.794]
Caught signal 11 (Segmentation fault). Server aborting
[ 750.794]
~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)
~$ cat /var/log/Xorg.0.log | grep Chipset
[ 756.196] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
[ 756.202] (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45
[ 756.202] (--) intel(0): Chipset: "GM45"
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which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1029265
Title:
X server sometimes crashes after sleep
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