Intel HD 4000 and Sunix DPD2000 scrolling screen

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On Wed, Dec 19, 2012 at 8:44 PM, Karsten Nielsen <karsten at foo-bar.dk> wrote:
> I have bought a Lenovo X1 carbon which have a integrated Intel HD 4000 graphics chip and wanted to attach 2 external monitors however there is only one mini-DislpayPort in this machine.
>
> I found a Sunix DPD2000 displayport splitter and it works and percents a nice 3840x1200 display to me but the screen scrolls I cannot get it to stop.
>
> System:
> Debian sid with kernel 3.7
> xserver-xorg                      1:7.7+1
> xserver-xorg-video-intel  2:2.20.14-1
>
> Anyone have suggestions ?

Make a short video of the scrolling behaviour and upload it somewhere
please. Also, please boot with drm.debug=0xe added to your kernel
cmdline and attach the complete dmesg after the monitor is enabled.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch


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