[Bug 93578] 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 #52 from Birin <birintxo at gmail.com> ---
Hi all,

I'm still having the same issues as the people on this bug. I have a Dell XPS
13 9350 with the DA200. BIOS is updated to 1.4.4 and Thunderbolt firmware is
A04 2.16.01.003. The external monitor that I'm trying to use is a Dell U2414H
through the HDMI connector on the DA200.
I'm able to get it working for 1280x768 @60Hz but not for 1920x1080 @60Hz.
i1920x1080 works but screen flickers. 1920x1080 @30Hz works too but flickering
as well.

I'm using Xubuntu 16.04 with kernel '4.4.0-28-generic #47-Ubuntu'.

1920x1080 @60Hz works in Windows 10 with same hardware.

Thanks,

Birin

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