I experience this problem on an IBM ThinkPad T42 which has an ATI Radeon Mobility 7500 using the "ati" driver. Backtrace in Xorg.0.log is almost identical, but here it is:
---- Backtrace: 0: /usr/bin/X(xf86SigHandler+0x81) [0x80c9581] 1: [0xffffe420] 2: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_update_state_locked+0x519) [0xb5827cc9] 3: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_update_state+0x2a) [0xb58280ea] 4: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_Clear+0x17e) [0xb57badbe] 5: /usr/lib/xorg/modules/extensions//libglx.so [0xb7c4fa08] 6: /usr/lib/xorg/modules/extensions//libglx.so(DoRender+0x155) [0xb7c48625] 7: /usr/lib/xorg/modules/extensions//libglx.so [0xb7c486bc] 8: /usr/lib/xorg/modules/extensions//libglx.so [0xb7c4cb2c] 9: /usr/bin/X [0x815754e] 10: /usr/bin/X(Dispatch+0x1aa) [0x808f47a] 11: /usr/bin/X(main+0x495) [0x8076f05] 12: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7dcf050] 13: /usr/bin/X(FontFileCompleteXLFD+0x1e1) [0x8076241] Fatal server error: Caught signal 11. Server aborting ---- For me the problem is simply with the screensaver starting, whether locked or not -- my idle screensaver config doesn't lock, and I couldn't work out why it was back at GDM after I went away from it for a few minutes; if I select "Lock Screen" however the crash happens straight away. The screen fades out to black like usual, but at the point where the screensaver would start X crashes instead. Also confirmed that the problem occurs in dual-head scenario only -- exactly the same xorg.conf (I get my dual-head through xrandr commands at present) with only single-head enabled and the screensaver works fine. -- [gutsy] dualhead + locking system xorg crashes (915GM) (i810 driver) https://bugs.launchpad.net/bugs/153878 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
