Comment 10 for bug 502237

Same problem in lucid.
I think this bug could be a duplicate of 343265 (similar backtrace) and that it is solved. Although wasn't able to get the same backtrace in lucid but the crashes are there.
This piece of code from karmic gdb backtrace was helpful:
Program received signal SIGSEGV, Segmentation fault.
0x080f95fc in xf86CursorSetCursor (pDev=0xa33d258, pScreen=0xa1c7458, pCurs=0xa90a190, x=1, y=0)

Searching on freedesktop it seems to have been solved in april:
http://lists.freedesktop.org/archives/xorg-devel/2010-April/006841.html

I installed xorg 1.8.1 (it has this patch) from and nvidia 195.36.24 from xorg-edgers ppa and no more crashes switching users/VTs. After 2 days on lucid, 2 users and numerous switches, not even one crash. Will continue testing, hopefully if would not crash again :-)
Could anyone review the above info and adjust the tags: xorg, not nvidia bug and the duplicate status, if applicable?
I had the same problem since ubuntu 9.04, with all vesions of nvidia and xorg available at the time (maybe bug introduced after xorg 1.5?), but not always the same backtrace, so then reported as #406965, Bug #579874.