On Fri, 12 Apr 2002, Allen H. Ibara wrote: >| the ATI Radeon support in XFree86 4.0.1, it turns out, doesn't play >| nice with the S2462 chipset. If you enable the Radeon's acceleration, it >| will throw complete garbage on an X dispay. >| It developed that there's a known timing problem in the Radeon driver, >| which the extreme speed of the Athlons exacerbates; Darryl found us a >| one-line patch, which worked. > >The one line patch in question adds a 100ms delay in the >XFree86 driver at the point where it restores the screen after a >vt switch: > >(patch at the bottom of the page). >http://www.tuxedo.org/~esr/writings/ultimate-linux-box/configuration.html > >But this "fix" (or even adding a larger udelay) didn't solve the problem >in my case (perhaps this shouldn't be surprising since ESR was using a >slightly different board).
We've been applying ESR's patch also, and it does not solve the problem. Also, I've just applied a patch from ATI which seemed to solve the problem on some test systems they have there, however my machines still hang with the new patches, and I've gotten feedback from beta testers that they problems still exist as well. In all cases reported so far, DRI seems to be involved in the problem. Still trying to determine the cause. If I make any headway, I'll report back here. -- Mike A. Harris Shipping/mailing address: OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, XFree86 maintainer Ontario, Canada, P6C 5B3 Red Hat Inc. http://www.redhat.com ftp://people.redhat.com/mharris _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
