On Tue, Jul 23, 2002 at 01:04:56PM -0500, Steven Walter wrote:
> > So, appended is a patch that changes the RADEONEnterVT code in
> > radeon_driver.c so that it re-enables bus mastering mode.  Michel has tested
> > it on his TiBook (which doesn't have the problem) and the patch doesn't seem
> > to break anything.
> > 
> > Please apply to the DRI trunk and XFree86 CVS if you think this is
> > applicable.  If you can keep my name in the source, I'll be even happer.
> > Yes, small things amuse small minds. ;)
> 
> I have just tried your fix with a Radeon 7500 QW and have gotten some
> interesting, and perhaps hopeful, results.
> 
> To summarize, this patch seems only the make the lock-ups less
> reproducible.  Sometimes it takes 3, sometimes four, sometimes 2.  I
> don't think I've gotten a lock on the first switch, yet.  I'm using the
> radeonfb; I'll have to attempt without.
> 
> Additionally, I'd like to see what, if any, effect XVidMode has, as it
> changed the situation before the fix.
> 
> However, using radeonfb and with XVidMode enable, the lock-up IS STILL
> THERE.  But I have a feeling you are now much closer.

Hmm, can you do a lspci -vvv before and after the crash? (if you have a
machine from which you can ssh in to the crashed machine)  In addition, also
do a lspci -vvv just after you've switched to the VT.

Thanks,
Charl

-- 
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/
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