I also suffer from random freezes with Nouveau driver in KUbuntu 12.10 (64 bit). My graphics card is GeForce 7300 GT. The issue occures when some KWin animation is being rendered (usually window minimization). This animation often stucks in some middle point, and I can no longer do anything with my computer, except for cold reboot. In the end of Xorg.log I find the following lines:
[ 139.998] (EE) Backtrace: [ 139.998] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7f9c1ebceac6] [ 139.998] (EE) 1: /usr/bin/X (0x7f9c1ea26000+0x1ac8f9) [0x7f9c1ebd28f9] [ 139.998] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f9c1dd4c000+0xfcb0) [0x7f9c1dd5bcb0] [ 139.999] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7f9c1c9b0000+0x802ef) [0x7f9c1ca302ef] [ 139.999] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (__libc_malloc+0x75) [0x7f9c1ca32fb5] [ 139.999] (EE) 5: /usr/bin/X (RegionFromRects+0x6a) [0x7f9c1ea9d71a] [ 139.999] (EE) 6: /usr/bin/X (SetPictureClipRects+0x5a) [0x7f9c1eb4c83a] [ 139.999] (EE) 7: /usr/bin/X (0x7f9c1ea26000+0x12b0f3) [0x7f9c1eb510f3] [ 139.999] (EE) 8: /usr/bin/X (0x7f9c1ea26000+0x55a51) [0x7f9c1ea7ba51] [ 139.999] (EE) 9: /usr/bin/X (0x7f9c1ea26000+0x4456a) [0x7f9c1ea6a56a] [ 139.999] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f9c1c9d176d] [ 139.999] (EE) 11: /usr/bin/X (0x7f9c1ea26000+0x448ad) [0x7f9c1ea6a8ad] NVidia driver works fine. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/994203 Title: Xorg freeze with Nouveau drivers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/994203/+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
