Description of Problem: On an ATI R128/Radeon i386 platform, when running the VMware emulator (http://www.vmware.com) in full-screen mode within a DRI-enabled XFree86 session, screen corruption occurs in the vicinity of the mouse pointer. As this is due to a bug in the XFree86 DRI code, other applications may be affected too. Version-Release number of selected component (if applicable): XFree86 4.2.x, all versions. How Reproducible: Always. Steps to Reproduce: 1. Enable DRI, start Xfree86 2. Start VMware session, run in full-screen 3. Drag Windows windows with mouse, scroll windows, etc. Actual Results: The screen gets cluttered. Expected Results: No screen corruption. Additional Information: As VMware is a well-known and widely used application, and the ATI chipsets are quite commoditized, I would expect this problem to have a wide impact. Fortunately, as of today, Mr. Michel Daenzer posted a patch which finally fixes this problem (tested on an IBM ThinkPad A30p, ATI Radeon Mobility M6). http://www.geocrawler.com/lists/3/SourceForge/680/0/9539606/ Patch against XFree86 4.2 attached (courtesy of Mr. Daenzer).
Created attachment 75504 [details] DRI patch against ati_dga and radeon_dga
Thanks, I'll chat with Michel about the patch, and add it to future builds if it is safe/sane. That probably means yes. ;o)
Ok, I finally caught Michel in IRC, and have applied the patch to my latest private build. It will appear in a future rawhide XFree86 version at some point when I merge my private build to rawhide. Thanks very much for the bug report, and for attaching the patch.
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2003-067.html