[Bug 93578] [SKL] Intel HD 520 failed to train DP when connected with a external monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93578

--- Comment #95 from Mads <mads at ab3.no> ---
Tested DP MST with a fresh drm-tip today (commit
0a03ea9496b49746b4964d05cc1f483385d1df8a), and it seems like daisy chaining
triggers the same kind of behaviour as with the DA200 dongle, so maybe the
error is related.

When Daisy chaining two Dell U2715H monitors through DisplayPort, the last
monitor in the chain cannot get a resolution higher than the range previously
mentioned here (1024x768 works, 1600x1200 does not, 1920x1080 does not).

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