I'm using the impressing r300 driver on my Radeon X300. Everything seems to work fine except one small thing: Parts of the screen sometimes don't get refreshed corectly. I will try to explain by an example: I'm scrolling in firefox and then a popu shows up (from kopete - a kde instant messenger - for example) The content scrolled behind that popup stays as it was or looks very funny. See the attached screenshot. I'm not sure if we could characterise the problem like this: Whenever a window or a change on screen appears which was not caused by a users click or so strange thing happens. I'm encountering the same problem while chatting with kopete: The chat window with the messages in it gets black sometimes, but then switching tabs or minimize, maximize causes a manual refresh and its fine again.... I hope you understand me. =) Thanks a lot for your help. PS: I experienced similar effects on my friends laptop on a fireGL ati card, so it's not hardware related in my opinion...
Created attachment 7653 [details] Picture to show the problem...
Do you experience the same problem with DRI disabled ? Are you using a compositor like compiz or beryl ? Could you try with AIGLX off and dri off in your xorg config.
Hmm strange I can't reproduce the problem at the moment. I'm using aiglx, but I can't use beryl because the scrolling is very slow, see the ticket here [1] if you are interested, probably you know a solution for that. The interesting thing is that they say it's a bug in compositing/mesa. I will come back to that when new xorg/mesa is out and working here. (The current 1.1.99.901 version from gentoo crash my system when terminating the X-server) [1] http://bugs.beryl-project.org/ticket/183
If you're using XAA, you need Option "XaaNoOffscreenPixmaps".
Assuming this is related to comment #4. Please don't reopen without at least attaching full xorg.conf and Xorg.0.log.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.