Hi I did as you asked. Setting the "noaccel" option did indeed make the problem go away ... although of course now I have no acceleration. If I removed the noaccel option and enabled either or both of the "XaaNoOffscreenPixmaps" and "XaaNoPixmapCache" options, the problem was there again. Any ideas of what to try next? -- Mike On Wed, 2003-04-23 at 00:26, Mike A. Harris wrote: > On Tue, 22 Apr 2003, Mike Godfrey wrote: > > >Date: Tue, 22 Apr 2003 22:06:10 -0400 > >From: Mike Godfrey <migod@xxxxxxxxxxxx> > >To: xfree86-list@xxxxxxxxxx > >Cc: mharris@xxxxxxxxxx > >Content-Type: text/plain; charset=us-ascii; format=flowed > >Subject: Re: Redhat 9, ATI Radeon 7500, DVI digital display -- output flaky > > > >Here is a screenshot of what I was talking about; thanks for any tips. > > > > > > http://plg.uwaterloo.ca/~migod/ftp/radeon-dvi-output.jpg > > Hmm. that looks like bad video memory corrupting offscreen > pixmap cache. > > To test that theory, please try adding to the device section > of your config file: > > Option "noaccel" > > Restart X and try to reproduce. If the problem persists, and is > static and not changing, not influenced at all by moving windows > around, etc. then it is probably video memory corruption right in > the framebuffer. > > If noaccel makes the problem go away, it could be offscreen video > memory corruption as mentioned above. You can test this out by > removing option noaccel, and instead trying each of these one at > a time, then both together: > > Option "XaaNoOffscreenPixmaps" > Option "XaaNoPixmapCache" > > Indicate if either one work, both, or neither. > > It also could be some kind of Xft or RENDER wonkiness, although > that would be reproduceable on any hardware and shouldn't be > driver or card specific in that case, and would be widely > reported. > > It's also possible to be an application specific problem although > from the screenshot it seems unlikely. -- Michael Godfrey PhD, Assistant Professor Nortel Networks Jr Chair, Telecommunications Software Engineering Univ of Waterloo, School of Computer Science email: migod@xxxxxxxxxxxx URL: http://www.uwaterloo.ca/~migod _______________________________________________ xfree86-list mailing list xfree86-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/xfree86-list IRC: #xfree86 on irc.redhat.com
