Bug#164303: xserver-xfree86: Display corrupted when using tdfx driver
False alarm. My problems were completely hardware related. Screen corruption
was present even when not using X and persisted across power cycles. The
problem went away after changing video cards.
Thanks.
Igor
Quoting Branden Robinson <branden@debian.org>:
> On Fri, Oct 11, 2002 at 08:56:41AM -0400, igor.khavkine@utoronto.ca wrote:
> > After upgrading to XF4.2.x in sid, I noticed something strange going on
> > with my display. First I notices some light "snow", i.e. very few random
> > pixels were the wrong color. Then more "snow", more pixels were the wrong
> > color, but this time mostly around the edges of windows that just moved.
> > This problem only got worse as I tried switching between between the
> > text console and X. After doing that a couple of times and coming back to
> > X, I found the display completely out of sync and completely useless.
> > The X server did not crash, but also refused to switch back to the
> console.
> > I managed to safely reboot. Note that I went through all of this twice,
> > so far. So it's pretty reproducable.
>
> This sounds like pixmap cache corruption.
>
> > This may have something to do with the "improvements" to the XVideo code
> > for tdfx. I did manage to watch a video (using xine in fullscreen mode,
> > which uses Xvideo) before the X server crashed, but did not notice any
> > significant improvement compared with an earlier version of the tdfx
> driver.
>
> On the contrary, I think it may have something to do with DRI.
>
> I think this because I have the exact same card you do, and do not
> experience this problem.
>
> The only difference between our setups that I can discern is that you
> have DRI enabled (I don't because I run at depth 24).
>
> Can you try adding the following lines to the "Device" Section of your
> XF86Config-4 file?
>
> Option "XaaNoOffscreenPixmaps"
> Option "XaaNoPixmapCache"
>
> Try one of these at a time, and if that doesn't work, try both together.
>
> Please let us know if this resolves your problem.
>
> My own config and logfiles are attached, in case they may be of some use
> to you.
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