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. -- Mike A. Harris ftp://people.redhat.com/mharris OS Systems Engineer - XFree86 maintainer - Red Hat _______________________________________________ xfree86-list mailing list xfree86-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/xfree86-list IRC: #xfree86 on irc.redhat.com
