Red Hat Bugzilla – Bug 118252
ATI 7000/VE "snow effect when window is moved"
Last modified: 2007-11-30 17:10:38 EST
Description of problem:
When a window is moved a "snow effect" (blinking horizontal white
lines and dots) is credated to its right. Some resolutions/refresh
rates are far worse than others
Version-Release number of selected component (if applicable):
XFree86-4.3.0-63 (current fedora/development)
as well as XFree86 from FC1 release and errata.
Steps to Reproduce:
1. Get a card that identifies itself as "ATI Radeon VE/7000 QY (AGP)"
(ChipID = 0x5159)
2. Set for example 1400x1050 as resolution (it is more visible at
email@example.comHz but can also be seen @74.8Hz
3. Move a window or make some text scroll really fast
White flickering dots and lines to the left of the moved window.
Stable picture without mentioned artifacts
According to the upstream bug at
http://bugs.xfree86.org/show_bug.cgi?id=175 it is a bandwidth
calculation bug fixed in xfree cvs. The cvs log message to
radeon_driver.c version 1.108 (xfree86 cvs) states the following:
date: 2003/10/07 22:47:12; author: martin; state: Exp; lines: +692 -151
478. Radeon driver fixes (Hui Yu@ATI)
- Add display bandwidth calculation routine to fix
flickering/tearing display problem
I can verify this problem as fixed with freedesktop.org's XORG-CURRENT
branch when I tested is earlier today.
I hope that you will find time to merge this fix in time for FC2
We're planning on shipping xorg x11 in FC2.
That's excellent news. Anything I can do to help out?
For now, there is nothing for people to do, but once it is in
Fedora devel, you can give it a whirl and report back bugs, etc.
if you like. That would be a big help once things are ready.
Thanks for the offer!
I can no longer reproduce the problem with