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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed in Ubuntu. https://bugs.launchpad.net/bugs/1769733 Title: Third screen not working displayport amd ryzen 5 2400g apu Status in linux-signed package in Ubuntu: New Bug description: 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1769733/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp