[ltp] System hang when viewing videos

[Richard Neill]

Phil Shotton wrote:
> 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!
> 

A thought - can you ssh into the machine from elsewhere?  If so, it's an 
X problem rather than a kernel one. Also, is the crash reproducible 
enough that you could try the vesa driver, and verify that it doesn't 
(or does) happen with that?

Richard