Dual screen issues with Radeon X1250 on HP t5730

Michel Dänzer michel at daenzer.net
Thu Jan 15 00:21:13 PST 2015

On 14.01.2015 18:59, Jeffrey Langerak wrote:
> When using one of the mentioned Linux systems it works as expected by
> using 1 monitor and attaching a 2nd monitor will work but only in
> mirroring mode. When I select that I want to extend the desktop indeed
> extends but the output on both screens is completely garbled and
> completely unusable, the strange part is that my cursor is the only
> thing being correctly rendered and works on the extended desktop. The
> fun fact is that the symptom with the garbled screen is happening on
> all tested Linux systems and the garbling looks exactly the same, I'm
> suspecting a driver issue of config issue here.


>    Option       "ColorTiling"                   "on"
>    Option       "ColorTiling2D"                 "on"

Does disabling ColorTiling2D or ColorTiling work around the problem? If
not, please provide the corresponding Xorg log file.

Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

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