[ltp] System hang when viewing videos

[Phil Shotton]

OK, did a checkout of xf86-video-ati from 08/03/2008 - all working 
normally again now. Somewhere between then and now something went bad :-(

Phil

Phil Shotton wrote:
> I pulled the latest xf86-video-ati and drm, built and installed. Now 
> my second monitor goes blank when I do:
>
>    xrandr --output VGA-0 --right-of LVDS
>
> It works fine in clone mode, but after running the above the 
> background is black, and no windows show. The mouse cursor is still 
> visible though.
> This is a bug in xf86-video-ati - I reverted the drm lib to the gutsy 
> version and I still have the problem.
> How do I pull a known date from git so I can go back to the working 
> version?
>
> Cheers
> Phil
>
> Alex Deucher wrote:
>> On Sat, Mar 22, 2008 at 6:07 PM, Phil Shotton 
>> <phil@stairbridge.org.uk> 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!
>>>
>>>  I suspect ati driver / hardware incompatibility that's only exposed 
>>> with
>>>  movies. Anyone else suffered this.
>>>     
>>
>> If you are using the recently added textured video adapter, you may
>> run into issues with the MMIO path on r5xx.  Grab and install the
>> latest drm sources
>> (http://gitweb.freedesktop.org/?p=mesa/drm.git;a=summary).  If the
>> driver is using the CP path, textured video should work pretty well.
>> I haven't gotten a chance to debug the issues with the MMIO paths yet.
>>  Also, you'll probably want to update xf86-video-ati as well if you
>> want to use textured video.
>>
>> Alex
>>