Comment 3 for bug 946665

Here's some more information.

Mine is very reproducible if I just watch some Adobe Flash videos in Firefox or Chrome. The crash will not happen at a regular time interval, but can be encouraged by changing tabs while watching a video.

Possibly unrelated, but even using the Nvidia setttings tool, I cannot get Precise to stay in Twinview. I'll save the xorg.conf and it will read it. LightDM will use Twinview, but then after logging in it boots me back to a single monitor. Probably a bug of Unity, not the drivers.

[ 17812.845]
Backtrace:
[ 17812.845] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fa0daa7e2d6]
[ 17812.845] 1: /usr/bin/X (0x7fa0da8f6000+0x18c17a) [0x7fa0daa8217a]
[ 17812.845] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fa0d9c1c000+0xfcb0) [0x7fa0d9c2bcb0]
[ 17812.845] 3: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa0d387a000+0x902a9) [0x7fa0d390a
2a9]
[ 17812.845] 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa0d387a000+0xfd5e7) [0x7fa0d3977
5e7]
[ 17812.845] 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa0d387a000+0x4e2570) [0x7fa0d3d5
c570]
[ 17812.845] 6: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa0d387a000+0x4e0ff5) [0x7fa0d3d5aff5]
[ 17812.845] 7: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7fa0d387a000+0x4e27ad) [0x7fa0d3d5c7ad]
[ 17812.845] 8: /usr/bin/X (0x7fa0da8f6000+0x11976c) [0x7fa0daa0f76c]
[ 17812.845] 9: /usr/bin/X (0x7fa0da8f6000+0xe8b1c) [0x7fa0da9deb1c]
[ 17812.845] 10: /usr/bin/X (0x7fa0da8f6000+0xe9b65) [0x7fa0da9dfb65]
[ 17812.845] 11: /usr/bin/X (0x7fa0da8f6000+0x4e761) [0x7fa0da944761]
[ 17812.845] 12: /usr/bin/X (0x7fa0da8f6000+0x3d68a) [0x7fa0da93368a]
[ 17812.845] 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fa0d8ab176d]
[ 17812.845] 14: /usr/bin/X (0x7fa0da8f6000+0x3d97d) [0x7fa0da93397d]
[ 17812.845] Segmentation fault at address (nil)
[ 17812.845]
Caught signal 11 (Segmentation fault). Server aborting