#7 (hopefully) solved it for me. Latest Ubuntu-20.4.2 update supplied me with kernel 5.8.0-48. There the problem existed.
Going after #7's suggestion, I installed 5.12.0-051200rc6drmtip20210410-generic and now the problem did not occour for 20+ hours of operating "dangerous" applications which previously were sufficient to trigger the problem (LibreOffice, generic Java (office) applications, wine with simple games). Thank you, @kaihengfeng! -- 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/1883493 Title: amdgpu hangs from time to time with *ERROR* Waiting for fences timed out! Status in linux package in Ubuntu: Incomplete Bug description: un 15 08:30:42 alhazen kernel: [ 1566.155810] [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out! Jun 15 08:30:47 alhazen kernel: [ 1566.159792] [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out! Jun 15 08:30:47 alhazen kernel: [ 1571.020144] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx_0.0.0 timeout, signaled seq=535493, emitted seq=535495 Jun 15 08:30:47 alhazen kernel: [ 1571.020216] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 3664 thread Xorg:cs0 pid 3694 Jun 15 08:30:47 alhazen kernel: [ 1571.020218] [drm] GPU recovery disabled. Mouse pointer still moves, but apart from that the display is frozen. Music keeps playing. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-37-generic 5.4.0-37.41 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Jun 15 09:09:56 2020 InstallationDate: Installed on 2020-05-28 (17 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) IwConfig: enp4s0 no wireless extensions. lo no wireless extensions. MachineType: System manufacturer System Product Name ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-37-generic root=/dev/mapper/vgubuntu-root ro quiet splash acpi-enforce-resources=lax vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-37-generic N/A linux-backports-modules-5.4.0-37-generic N/A linux-firmware 1.187 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/02/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0604 dmi.board.asset.tag: Default string dmi.board.name: PRIME X570-PRO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0604:bd07/02/2019:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEX570-PRO:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1883493/+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
