Bug#461649: Image shakes and shivers when content changes with Radeon RV100 QY (Radeon 7000/VE)

[Alex Deucher]

On Jan 20, 2008 12:15 AM, Stephen M. Benoit <linux at magnumline.com> 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.

Please try a more recent version of the radeon driver (6.7.19x or
higher) and x server (1.3 or newer).

Alex