Bug#461649: Image shakes and shivers when content changes with Radeon RV100 QY (Radeon 7000/VE)
Stephen M. Benoit wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.6.3-2
> Severity: normal
> File: /usr/lib/xorg/modules/drivers/radeon_drv.so
>
>
> Hello.
>
> With Xorg 7.1.0-19, my Radeon RV100 QY (Radeon 7000/VE) displays a
> shaky, flickering image whenever there is a change on the screen
> (scrolling, cursor movement, update in gkrellm...).
>
> For example, when I open an aterm, choose a large font and run:
>
> % dd if=/dev/urandom bs=512 | od -t x1 -A none
>
> ... the horizontal lines on my screen shake and shiver independently
> and randomly left or right by at least 3 pixels. When everything
> seems still, I observe several flickering lines per second.
>
> I have tried using "NoAccel" and a slew of options documented in
> radeon(4), but there was no improvement. Same problem whether I use
> Linux kernel 2.6.20 or 2.6.23.14 using SMP(SMT) or UP. Using a lower
> frame rate made no difference, nor did a lower resolution, nor
> lowering the HorizSync or VertRefresh of the monitor description.
>
> I am testing on 2 dual-boot (Debian Sarge, Debian Etch) single-head
> workstations with identical hardware but different LCD (SVGA
> connection) monitors. Both have the same behaviour. Under Sarge with
> XFree86 4.3.0 (backport), the old radeon driver produces a stable
> picture.
>
> Any ideas? Suggestions are welcome, I am including configuration
> information below.
>
Can you try a more recent xserver-xorg-video-ati? 6.6.3 is veeeeery old.
Either you upgrade your X.org to unstable, or you just rebuild
xserver-xorg-video-ati latest git against Etch. There's a quick howto
for building the latest git at
http://bgoglin.livejournal.com/10936.html
(replace intel by ati in the text). If you need help, let me know.
Brice
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