I am also on a Dell Optiplex 360 with Radeon on board graphics. Having tried both stnadrs Xorg release, swat and edgers and all have this bug. The constant being:
Backtrace: [ 6673.385] 0: /usr/bin/X (xorg_backtrace+0x37) [0x81c04f7] [ 6673.385] 1: /usr/bin/X (0x8048000+0x17c05a) [0x81c405a] [ 6673.385] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0x7cc40c] [ 6673.385] 3: /usr/lib/xorg/modules/extensions/librecord.so (0x12c000+0x216f) [0x12e16f] [ 6673.385] 4: /usr/bin/X (_CallCallbacks+0x3c) [0x807b0ac] [ 6673.385] 5: /usr/bin/X (WriteToClient+0x209) [0x81c3709] [ 6673.385] 6: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x70) [0x6e0dc0] [ 6673.385] 7: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x73) [0x6df023] [ 6673.385] 8: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x454000+0xd41f3) [0x5281f3] [ 6673.385] 9: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x454000+0xd8123) [0x52c123] [ 6673.385] 10: /usr/lib/i386-linux-gnu/libdrm.so.2 (drmHandleEvent+0xce) [0x13cb4e] [ 6673.385] 11: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x454000+0xd85c7) [0x52c5c7] [ 6673.385] 12: /usr/bin/X (WakeupHandler+0x65) [0x807a8f5] [ 6673.385] 13: /usr/bin/X (WaitForSomething+0x1a5) [0x81bd775] [ 6673.385] 14: /usr/bin/X (0x8048000+0x2e552) [0x8076552] [ 6673.385] 15: /usr/bin/X (0x8048000+0x1c47a) [0x806447a] [ 6673.385] 16: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xe7a113] [ 6673.385] 17: /usr/bin/X (0x8048000+0x1c7a9) [0x80647a9] [ 6673.385] Segmentation fault at address 0xb542f008 [ 6673.385] Caught signal 11 (Segmentation fault). Server aborting [ 6673.385] -- 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/886229 Title: Segmentation fault causes random log off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/886229/+subscriptions _______________________________________________ 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
