random green pixels

Alex Deucher alexdeucher at gmail.com
Sun Sep 13 15:14:26 PDT 2009

On Sat, Sep 12, 2009 at 1:34 PM, Csillag
Kristof<csillag.kristof at united-consult.hu> wrote:
> Hi all,
> I have one more problem with my display:
> when viewing some pictures, at some
> fixed positions if the images, bright green pixels
> appear. These pixels are sometimes flickering
> (bright green vs. regular color.)
> The pixels move together with the image,
> and if I resize the image (ctrl + in my firefox),
> they move together with the position of the image.
> What on Earth may cause this?
> This is a Samsung 214T monitor, DVI connection,
> integrated Radeon RS690M graphics chip.
> Some monitor, same graphics chip, VGA connection: no problem
> Same monitor, same DVI connection, nvidia card: no problem
> The problem only appears with DVI connection, and only
> with the ATI chip. (In short, it behaves the same as my
> image twitching problem.)
> Do you have any advice:

Sounds like display watermark problems.  Try xf86-video-ati from git
master.  If that doesn't help, try the following option in the device
section of your config:
Option "DisplayPriority" "HIGH"


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