[Bug 103786] DP audio does not work with Thinkpad Ultra Dock and DP-to-HDMI converter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103786

Jan Hoffmann <jan at 3e8.eu> changed:

           What    |Removed                     |Added
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             Status|NEEDINFO                    |NEW

--- Comment #46 from Jan Hoffmann <jan at 3e8.eu> ---
(In reply to Lakshmi from comment #43)
> So with CAC-1080, audio works fine (which is the original issue)?

Yes. Logs are attached (for CAC-1080 connected to docking station, at
1920x1080/60Hz resolution).


(In reply to Lakshmi from comment #43)
> At the moment display is not working as expected via docking station.
> Did I understood correctly?

With the CAC-1080, high resolutions (3840x2160/60Hz) do not work via docking
station. The symptoms seem to me like there is some problem with signal
quality. (The display switches between "no signal" and a black screen with
strange detected resolution like 3840x2159 or 1920x2160. Sometimes a broken
picture shows briefly, sound can often be heard shortly.)

I am not sure if it is possible these issues are related (i.e. weak signal
causing different problems), or if should I open a separate bug for the video
issue?

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