I appear to have this as well, although the backtrace is slightly different (earlier in _mesa_update_state_locked and an extra level): Backtrace: 0: /usr/bin/X(xf86SigHandler+0x6d) [0x48672d] 1: /lib/libc.so.6 [0x7fefc28f67d0] 2: /usr/lib/xorg/modules/extensions//libGLcore.so(xmesa_update_state+0x42) [0x7fef9f69f8a2] 3: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_update_state_locked+0x455) [0x7fef9f5c3d25] 4: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_update_state+0x11) [0x7fef9f5c4121] 5: /usr/lib/xorg/modules/extensions//libGLcore.so(_mesa_Clear+0x108) [0x7fef9f55f2e8] 6: /usr/lib/xorg/modules/extensions//libglx.so(DoRender+0x13b) [0x7fefc18e945b] 7: /usr/lib/xorg/modules/extensions//libglx.so [0x7fefc18ed00d] 8: /usr/bin/X(Dispatch+0x1db) [0x4514eb] 9: /usr/bin/X(main+0x45d) [0x439f4d] 10: /lib/libc.so.6(__libc_start_main+0xf4) [0x7fefc28e2b44] 11: /usr/bin/X(FontFileCompleteXLFD+0x231) [0x439249]
It is with the i810 driver and dual head with different sizes for the monitors (the laptop has native 1440x900 and the CRT is a normal one using 1280x1024). Also, using the 'blank screen' screensaver doesn't crash. And the 'flying ubuntu' screen saver doesn't crash. My guess would be that GL based screensavers crash. And DRI is not available for me on this specific setup. This is with gutsy: ii xserver-xorg-video-i810 2:1.7.4-0ubuntu5 X.Org X server -- Intel i8xx, i9xx display driver ii gnome-screensaver 2.20.0-0ubuntu4.2 a screen saver and locker ii xscreensaver-data 4.24-5ubuntu3 data files to be shared among screensaver frontends ii xscreensaver-gl 4.24-5ubuntu3 GL(Mesa) screen hacks for xscreensaver Feel free to ask more specific information. I just don't know what else is relevant here. I also don't mind trying a patched .deb or installing debug packages. -- [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
