The <sc1236...> message is just NPTL trying to see if you have an NPTL-capable kernel. Upgrade to the latest (stable) kernel and you should be all set.
If the X server problem started because of a libc-upgrade,
you can also try:
LD_ASSUME_KERNEL=2.4.18 command
This will force "command" to be executed without NPTL.
I doubt any of this is related to ogle. For what it's worth, I
occasionally try DVD playback with xine, which has been working well.
--david
