[Intel-gfx] Intel HD 4000 and Sunix DPD2000 scrolling screen

[Daniel Vetter]

On Tue, Jan 22, 2013 at 8:44 PM, Karsten Nielsen <karsten at foo-bar.dk> wrote:
> Hi,
>
> I am just curios is there anyone that has any suggestions as to what might be wrong ?

I've looked at your video and logs, but didn't have an immediate idea.
Can you please file a bug for this at bugs.freedesktop.org against DRI
-> DRM/Intel?

Also, does this scrolling behaviour happen on all the resolutions?
I've also noticed that your dp converter exposes some single-screen
modes - do those work?

Yours, Daniel

>
> Thanks,
> Karsten
>
> -----Original message-----
> From:   Karsten Nielsen <karsten at foo-bar.dk>
> Sent:   Fri 21-12-2012 10:52
> Subject:        Re: [Intel-gfx] Intel HD 4000 and Sunix DPD2000 scrolling screen
> To:     Daniel Vetter <daniel at ffwll.ch>;
> CC:     intel-gfx at lists.freedesktop.org;
>> Hi,
>>
>> As promised
>>
>> dmesg is here http://home.foo-bar.dk/dmesg.txt
>> and the video http://home.foo-bar.dk/i915-scrolling.mp4
>>
>>
>> - Karsten
>>
>>
>> -----Original message-----
>> From: Daniel Vetter <daniel at ffwll.ch>
>> Sent: Thursday 20th December 2012 10:49
>> To: Karsten Nielsen <karsten at foo-bar.dk>
>> Cc: intel-gfx at lists.freedesktop.org
>> Subject: Re: [Intel-gfx] Intel HD 4000 and Sunix DPD2000 scrolling screen
>>
>>
>> On Wed, Dec 19, 2012 at 8:44 PM, Karsten Nielsen <karsten at foo-bar.dk
>> <mailto: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 enable
>>
>> Thanks, Daniel
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> +41 (0) 79 365 57 48 - http://blog.ffwll.ch <http://blog.ffwll.ch>
>>
>>
>>
>> _______________________________________________
>>
>> Intel-gfx mailing list
>>
>> Intel-gfx at lists.freedesktop.org
>>
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>>
>>
>>



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