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Old 08-17-2020, 07:34 AM   #12
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Join Date: Aug 2020
Posts: 1

I have the very same issue on my Dell XPS 13 9380 with a fresh Ubuntu 20.04.1 installation. It works well as long as the laptop display is in use. When I turn off the laptop display and want to use only the two monitors attached to my USB-C dock, the system becomes unusable.

* OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.1.5 - kisak-mesa PPA
* DisplayLink 5.3.1

It worked well on the same machine using Ubuntu 18.04.


Applying the XServer patch seems to solve the problem:

Last edited by sproell; 08-17-2020 at 08:04 AM.
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