I've added in the 4.17 kernel and now all three screens work, however it does not get the type of the other display and does not have the right resulution (1920x1080), it is connected via a displayport-> hdmi adapter.
** Attachment added: "Screenshot from 2018-05-08 18-30-03.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769733/+attachment/5136245/+files/Screenshot%20from%202018-05-08%2018-30-03.png -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1769733 Title: Third screen not working displayport amd ryzen 5 2400g apu Status in linux package in Ubuntu: Confirmed 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) --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: unisteven 1830 F.... pulseaudio /dev/snd/controlC2: unisteven 1830 F.... pulseaudio /dev/snd/controlC0: unisteven 1830 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-05-06 (1 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) IwConfig: enp24s0 no wireless extensions. lo no wireless extensions. MachineType: MSI MS-7A37 Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=0d2a4d4d-3c12-4311-a8e7-72e20dace613 ro quiet splash ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 RfKill: Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 03/11/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.C0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B350M MORTAR ARCTIC (MS-7A37) dmi.board.vendor: MSI dmi.board.version: 2.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 4 dmi.chassis.vendor: MSI dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.C0:bd03/11/2018:svnMSI:pnMS-7A37:pvr2.0:rvnMSI:rnB350MMORTARARCTIC(MS-7A37):rvr2.0:cvnMSI:ct4:cvr2.0: dmi.product.family: To be filled by O.E.M. dmi.product.name: MS-7A37 dmi.product.version: 2.0 dmi.sys.vendor: MSI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769733/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

