[Savage40] Savage IX : DRI and APM -> frozen X.org

[Alex Deucher]

--- Phil Stopford <phil at ldex.terica.net> wrote:

> Hi there,
> 
> I'm someone might be able to help with this and perhaps suggest a way
> to 
> avoid the problem. Simply put, if I don't enable DRI in xorg.conf, I
> can 
> quite happily suspend and resume my IBM T21 without problems (other
> than 
> sound, but that's not likely to be relevant here). As soon as DRI is 
> enabled, though, the resumed system shows a scrambled X session and
> no 
> amount of keyboard prodding will get a response from the system. All
> I 
> can do is remove the power source. I have tried all available
> snaphots 
> from http://dri.freedesktop.org/snapshots/ through to the mid-June 
> release without finding one that appears to work reliably.
> 
> DRI does work other than that, showing a 300 fps output for glxgears 
> compared to ~70 for non-DRI, and is proving useful enough that I'd
> like 
> to be able to persuade APM and DRI to cooperate.
> 
> In connection with this, is there a way to trigger debug output (to a
> 
> log file) from the DRI system so that crash bugs can be reported more
> 
> effective? I couldn't find any information about this during a brief 
> search. Since DRI crash bugs seem to lock up X, getting a logged
> chunk 
> of debug output would obviously be handy in reporting failures.
> 
> Any comments/help would be appreciated.
> 
> Phil Stopford.

Generally speaking the DRI and suspend/resume do not work well
together.  There are several issues with various subsystems.  Not all
agp drivers, for example, have suspend and resume routines.  If your
problem is related to agp, ou might be able to get it working by
forcing the dri to PCI mode.  this will cost you some performance
however.  
Option "BusType" "PCI"
in your xorg.conf

Does your whole system actually hang or is just is the GPU just wedged?
You can possibly debug it if you can get a serial console.

Alex



		
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