Looks like upgrading to the newest mainline stable(?) kernel 5.12.9-051209-generic from here https://kernel.ubuntu.com/~kernel- ppa/mainline/v5.12.9/ with the proper associated headers made an improvement.
Switching TTY's and back to the active gnome session the second display stays awake. -- 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/1931522 Title: Radeon 7 - [drm] perform_link_training_with_retries: Link training attempt failed Status in linux package in Ubuntu: New Bug description: One of two Displayport connected monitors does not properly wake. Ubuntu 20.04.2 LTS - this was when they went to sleep after being locked for a while for power save. Ubuntu 21.04 LTS - Occurred when display when switching to a tty and back to the gnome gui. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-18-generic 5.11.0-18.19 ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17 Uname: Linux 5.11.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: babak 2491 F.... pulseaudio /dev/snd/controlC2: babak 2491 F.... pulseaudio /dev/snd/controlC0: babak 2491 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Jun 9 22:12:30 2021 InstallationDate: Installed on 2021-06-09 (1 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: Micro-Star International Co., Ltd. MS-7C34 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-18-generic root=UUID=3d216401-e070-4d87-8a07-3cc2f5bf2650 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.11.0-18-generic N/A linux-backports-modules-5.11.0-18-generic N/A linux-firmware 1.197 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/12/2021 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: 1.D0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: MEG X570 GODLIKE (MS-7C34) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 1.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvr1.D0:bd05/12/2021:br5.17:svnMicro-StarInternationalCo.,Ltd.:pnMS-7C34:pvr1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMEGX570GODLIKE(MS-7C34):rvr1.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr1.0: dmi.product.family: To be filled by O.E.M. dmi.product.name: MS-7C34 dmi.product.sku: To be filled by O.E.M. dmi.product.version: 1.0 dmi.sys.vendor: Micro-Star International Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1931522/+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
