Bug#206907: xserver-xfree86: hangs on screensaver
On Thu, Aug 28, 2003 at 09:26:23AM +0200, David N. Welton wrote:
> Sven Luther <sven.luther@wanadoo.fr> writes:
>
> > On Wed, Aug 27, 2003 at 03:14:54AM -0500, Branden Robinson wrote:
> > > On Wed, Aug 27, 2003 at 07:34:55AM +0200, Sven Luther wrote:
>
> > > > This don't bring us much, it is hanging in glint_wait, which is
> > > > a macro waiting for space in the fifo, and since the space never
> > > > comes, it waits forever. Same diagnostic as before. The pipeline
> > > > is deadlocked, but i don't know why. Strong suspisions of a
> > > > hardware problems, the hardware cannot be all that new after
> > > > all. But maybe there is some behavior that makes this appear
> > > > more often or something such, i don't know. Overheating of the
> > > > graphic chip or failing powersupply (either on the board or the
> > > > agp power lines) might be potential culprits.
>
> > > Well, if it's truly a hardware problem, sure it wouldn't affect just
> > > this accleration primitive.
>
> > > David, can you try adding the following to your Screen section in
> > > XF86Config-4?
>
> > > Option "XaaNoSolidHorVertLine"
>
> > > (This is documented in XF86Config-4(5x).)
>
> Didn't see this come through... maybe the mail is being a bit slow
> again.
>
> > It would affect all of them, but be triggered there by either the
> > fifo size, or some other reason. It hangs in GLINT_WAIT, so the
> > problem most probably is in the accel primitive _before_ this one.
>
> So it's not worth trying?
Well, i don't know, there is noxxx option for each accel primitive,
trying them all until you find the one which crashes your box might be a
better idea.
> FWIW, turning on the noaccel option *seems* to make it not crash. Not
> a perfect solution, but I can live with it. I am still available to
> run test code or try things out though.
Normal, since in this case, the graphic engine is not used, and the
processor does all the work. Since the graphic engine is not used, it
cannot dead-lock and you don't experience the problem.
I still have to build the debug enabled kernel module, i will do this
now.
Friendly,
Sven Luther
>
> Ciao,
> --
> David N. Welton
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