Re: Maybe I need a better video card? Editing xorg.conf?
--- On Thu, 9/29/11, Ming-Ching Tiew <mctiew@yahoo.com> wrote:
> From: Ming-Ching Tiew <mctiew@yahoo.com>
> Subject: Re: Maybe I need a better video card? Editing xorg.conf?
> To: debian-knoppix@lists.debian.org
> Date: Thursday, September 29, 2011, 2:22 PM
>
>
> --- On Thu, 9/29/11, Klaus Knopper <debian-knoppix@knopper.net>
> wrote:
>
>
> > If that happens again, could you please try
> >
> > echo "base=0xd0000000 size=0x10000000
> type=write-combining"
> > > /proc/mtrr
> >
> > from the console, before restarting the X server with
> init
> > 5?
> > (base=0xd0000000 size=0x10000000 are correct for my
> intel
> > card).
> >
> > This may reallocate at least the MTRR registers that
> got
> > lost.
> >
> > But, I wonder what the Xorg server is SUPPOSED to do
> when
> > the GPU hangs?
> >
>
> This is certainly something I should try. I have saved it
> on my system.
>
> Thanks for the pointer.
>
I used to have at least one GPU hang per day, but after adjusted this in the xorg.conf, I can conclusively say that I don't encounter GPU hang anymore !
Section "Device"
....
Option "Shadow" "True"
.....
EndSection
I also adjusted i915.semaphores=1 in the boot parameter at the same time, but
I have encountered a case where without "Shadow" option set to "True", the GPU
still hangs, so likely the i915.semaphores=1 has no effect.
The Option "Shadow" set to "True" as an impact I noticed, that is I could no
more use "mplayer -vo gl", that causes a X server to crash on window resize.
So now I use "-vo x11". Because my CPU is fast enough, I don't see any problem
running with "Shadow" set to "True". I got the stability which I need.
FYI in case anyone else encountered the same issue with intel graphics.
Cheers.
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