Radeon 7 - [drm] perform_link_training_with_retries: Link training attempt failed

[borillionstar]

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.

[borillionstar (babakrezai)]

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.

[borillionstar (babakrezai)]

Still having weird issues from sleep to wake of displays, they resize. Loose order, overlap, one or the other does not wake.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.