[Bug 87319] Dock with builtin DP/VGA "dongle" fails cycling through modes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87319

--- Comment #16 from Phidias Chiang <phidias.chiang at canonical.com> ---
@Gary:
> Pass: DP-port <-> Synaptic-DP-hub <-> external DP to VGA dongle <-> VGA EFP

I'm not sure of this because I don't have the DP-VGA dongle, I will verify that
when I have one.

> Can you help coordinate to measure the HW signal is correct or not in points of DP-port and Synaptic-DP-hub  (input/output) when issue happened? This is important for debugging in graphic driver further.

I'll inform our PM to see what can we do about this. Thanks.

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