I'm having the same problem, also with the Intel chipset (GM45 in my case).
Here are some snippets from my Xorg.0.log [ 4820.594] X.Org X Server 1.10.1 Release Date: 2011-04-15 [ 4820.594] X Protocol Version 11, Revision 0 [ 4820.594] Build Operating System: Linux 2.6.24-29-server i686 Ubuntu [ 4820.594] Current Operating System: Linux david-laptop 2.6.38-8-generic-pae #42-Ubuntu SMP Mon Apr 11 05:17:09 UTC 2011 i686 [ 4820.594] Kernel command line: root=UUID=3311ce7c-f839-469c-bd24-f00efdb49c5b ro quiet splash [ 4820.594] Build Date: 19 April 2011 03:33:17PM [ 4820.594] xorg-server 2:1.10.1-1ubuntu1 (For technical support please see http://www.ubuntu.com/support) [ 4820.600] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45, 4 Series, G45/G43, Q45/Q43, G41, B43, B43, Clarkdale, Arrandale, Sandybridge, Sandybridge, Sandybridge, Sandybridge, Sandybridge, Sandybridge, Sandybridge [ 4820.608] (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45 [ 4820.608] (--) intel(0): Chipset: "GM45"91 [ 6214.642] Backtrace: [ 6214.642] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80eab1b] [ 6214.642] 1: /usr/bin/X (0x8048000+0x5fac8) [0x80a7ac8] [ 6214.642] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb782540c] [ 6214.642] 3: /usr/bin/X (_CallCallbacks+0x3e) [0x8074e1e] [ 6214.642] 4: /usr/bin/X (WriteToClient+0x267) [0x80a7607] [ 6214.642] 5: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x62) [0xb73d4bf2] [ 6214.642] 6: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x75) [0xb73d2fc5] [ 6214.642] 7: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb736e000+0x226bc) [0xb73906bc] [ 6214.643] 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb736e000+0x87d2) [0xb73767d2] [ 6214.643] 9: /lib/i386-linux-gnu/libdrm.so.2 (drmHandleEvent+0xf5) [0xb73bf665] [ 6214.643] 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb736e000+0x7937) [0xb7375937] [ 6214.643] 11: /usr/bin/X (WakeupHandler+0x52) [0x8074602] [ 6214.643] 12: /usr/bin/X (WaitForSomething+0x1ba) [0x80a1f3a] [ 6214.643] 13: /usr/bin/X (0x8048000+0x27f1e) [0x806ff1e] [ 6214.643] 14: /usr/bin/X (0x8048000+0x1a81c) [0x806281c] [ 6214.643] 15: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0xb753de37] [ 6214.643] 16: /usr/bin/X (0x8048000+0x1a411) [0x8062411] [ 6214.643] Segmentation fault at address 0xb2b99008 [ 6214.643] Caught signal 11 (Segmentation fault). Server aborting -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/765136 Title: [natty] X often crashes since upgrade to natty _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
