I found one with such a backtrace, indeed. The log contains usual messages, and then is this:
Backtrace: 0: /usr/bin/X(xf86SigHandler+0x6d) [0x48672d] 1: /lib/libc.so.6 [0x2ba6ac6be7d0] 2: /usr/lib/xorg/modules//libfb.so(fbSolidFillmmx+0x140) [0x2ba6af1b2c90] 3: /usr/lib/xorg/modules//libfb.so(fbFillRegionSolid+0xc5) [0x2ba6af1ab185] 4: /usr/lib/xorg/modules/drivers//nvidia_drv.so(_nv000804X+0x199) [0x2ba6aebb4ec9] Fatal server error: Caught signal 11. Server aborting So this is an Nvidia bug indeed. -- gdm_slave_xioerror_handler: Fatal X error https://bugs.launchpad.net/bugs/152648 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs