Two things; one I don't get the same problem running on Gnome without desktop effects rather than KDE with desktop effects; haven't tried the two in between.
-12 is -ENOMEM and I've traced it back a little: Oct 4 13:11:27 major kernel: [ 795.810631] [drm:ttm_bo_validate] *ERROR* ttm_bo_validate: ttm_bo_move_buffer gave ENOMEM Oct 4 13:11:27 major kernel: [ 795.810634] [drm:radeon_bo_list_validate] *ERROR* radeon_bo_list_validate: ttm_bo_validate gave NOMEM Oct 4 13:11:27 major kernel: [ 795.810636] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12! -- X.org crashes sometimes. [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12! https://bugs.launchpad.net/bugs/583891 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs