[Nouveau] trouble connecting to Panduit VGA adapter

[Marko Schuetz-Schmuck]

Ilia Mirkin <imirkin at alum.mit.edu> writes:

> Does v4.13 fix your issues? v4.10 also included significant rework
> related to DP-MST, and I wouldn't be surprised if it fixed a few DP
> issues along the way. (Also, please don't drop the list from your
> replies.)

With v4.13 the laptop screen goes black after modprobe nouveau

> On Mon, Sep 4, 2017 at 9:30 AM, Marko Schuetz-Schmuck
> <MarkoSchuetz at web.de> wrote:
>> I'm running 4.9.43-1-MANJARO
>>
>> Ilia Mirkin <imirkin at alum.mit.edu> writes:
>>
>>> Are you running a v4.12-based kernel? If so, update to v4.13-rcN or
>>> integrate https://github.com/skeggsb/linux/commit/13a86519202c5d119d83640d6f781f3181205d2c
>>> into your kernel build.
>>>
>>> On Fri, Sep 1, 2017 at 12:50 PM, Marko Schuetz-Schmuck
>>> <MarkoSchuetz at web.de> wrote:
>>>> I want to connect to an InFocus projector that sits behind a Panduit VGA
>>>> adapter. I use a Thinkpad P51 with a mini display-port to VGA
>>>> converter. The laptop runs Manjaro and has the
>>>> video-hybrid-intel-nouveau-prime installed and it works with other
>>>> monitors. For some reason it does not detect the projector that is
>>>> connected through the Panduit. The keyboard shortcut to switch monitor
>>>> configuration says "No External Display". xrandr reports only the
>>>> built-in screen.
>>>>
>>>> I talked to the technician for the room installation and he told me that
>>>> he had seen this before on a Ubuntu machine and that switching to the
>>>> proprietary nvidia driver solved that problem. For various reasons I'd
>>>> rather not switch to that driver.
>>>>
>>>> I also found some lines with "DRM: DDC responded, but no EDID for DP-1"
>>>> in them from around the time I tried connecting to the projector. Could
>>>> they be related?
>>>>
>>>> Is there some setting or configuration that can help in this case?
>>>>
>>>> Best regards,
>>>>
>>>> Marko
>>>>
>>>> _______________________________________________
>>>> Nouveau mailing list
>>>> Nouveau at lists.freedesktop.org
>>>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>>>
>>
>> --
>> Prof. Dr. Marko Schütz-Schmuck
>> Department of Mathematical Sciences
>> University of Puerto Rico at Mayagüez
>> Mayagüez, PR 00681

-- 
Prof. Dr. Marko Schütz-Schmuck
Department of Mathematical Sciences
University of Puerto Rico at Mayagüez
Mayagüez, PR 00681
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