Public bug reported:
All relevant information can be found in this post:
https://askubuntu.com/questions/1033287/cant-get-my-third-screen-working-ubuntu-18-04-amd-ryzen-5-2400g
All errors and tries have been posted in that post. the problem is
reletaed to the drivers regarding the amd ryzen 5 2400g APU, not all
three of my screens turn on. only the dvi-d port and gdmi port give me
output but the display port gives me a blank screen.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-20-generic 4.15.0-20.21
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon May 7 21:52:25 2018
InstallationDate: Installed on 2018-05-06 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1769733
Title:
Third screen not working displayport amd ryzen 5 2400g apu
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