unfortunately, I can confirm this crash on a Thinkpad X24 that I updated to lucid today.
Here are the last lines from my Xorg.0.log (II) Module exa: vendor="X.Org Foundation" compiled for 1.7.5, module version = 2.5.0 ABI class: X.Org Video Driver, version 6.0 (II) UnloadModule: "vesa" (II) Unloading /usr/lib/xorg/modules/drivers/vesa_drv.so (II) UnloadModule: "fbdev" (II) Unloading /usr/lib/xorg/modules/drivers/fbdev_drv.so (II) UnloadModule: "fbdevhw" (II) Unloading /usr/lib/xorg/modules/linux/libfbdevhw.so (--) Depth 24 pixmap format is 32 bpp (II) RADEON(0): [DRI2] Setup complete Backtrace: 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e883b] 1: /usr/bin/X (0x8048000+0x61b1d) [0x80a9b1d] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0x979410] 3: /usr/bin/X (AddScreen+0x198) [0x806cf48] 4: /usr/bin/X (InitOutput+0x820) [0x80b9ca0] 5: /usr/bin/X (0x8048000+0x1eb8b) [0x8066b8b] 6: /lib/tls/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0x2a0bd6] 7: /usr/bin/X (0x8048000+0x1e931) [0x8066931] Segmentation fault at address 0xc Caught signal 11 (Segmentation fault). Server aborting Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information. ddxSigGiveUp: Closing log -- no gui lucid https://bugs.launchpad.net/bugs/526873 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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