nouveau: w520 dock station: link training failed

[Ricardo Ribalda Delgado]

Hello LLia do you have any way of building new drivers into old kernel
trees like the media-build?

http://git.linuxtv.org/cgit.cgi/media_build.git/tree/README

Thanks

On Wed, Jul 16, 2014 at 2:12 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> On Wed, Jul 16, 2014 at 7:30 AM, Ricardo Ribalda Delgado
> <ricardo.ribalda at gmail.com> wrote:
>> Hi
>>
>> I am trying to use a external monitor connected via display port to
>> the dock station of a w520. Unfortunately nothing is on the screen and
>> dmesg outputs:
>>
>> [  520.916021] nouveau E[   PDISP][0000:01:00.0] DP:0006:0344: link
>> training failed
>>
>>
>> If I connect it to the DP port on the notebook it works as expected
>> and the dmesg outputs:
>> [  562.099298] nouveau E[     DRM] DDC responded, but no EDID for DP-1
>>
>> I am using Linux pili 3.14-1-amd64 #1 SMP Debian 3.14.12-1
>> (2014-07-11) x86_64 GNU/Linux
>>
>> The dock station works perfectly with the proprietary driver from nvidia
>>
>> Is this a known bug? How can I provide a more detailed bug report?
>
> Please give 3.16-rc5 a shot. A considerable amount of rework has gone
> into 3.16 for DP support on nouveau. If you're still having issues,
> take a look at http://nouveau.freedesktop.org/wiki/Bugs/ for
> information on filing bugs.
>
>   -ilia



-- 
Ricardo Ribalda