[ltp] System hang when viewing videos

[Phil Shotton]

I've been experiencing complete lockups when viewing some videos or DVDs.
Not all video formats are affected, but I've not been able to make any 
judgement as to which work and which don't. Even ones that work will 
usually freeze the system if run full-screen.

I'm running Ubuntu Gutsy with all updates on a Thinkpad T60p with ATI 
Mobility FireGL V5250.
Using the ATI (radeon) driver - built off git as of 2008-03-06.
Hang happens using mplayer and Movie Player. Usually the screen just 
freezes and sound loops, everything locked solid. SysRq special keys 
don't work, the only cure is power-off reboot. Sometimes the mouse 
continues to move but nothing else!

I suspect ati driver / hardware incompatibility that's only exposed with 
movies. Anyone else suffered this.

Thanks
Phil