https://bugs.freedesktop.org/show_bug.cgi?id=111481 --- Comment #158 from Konstantin Pereiaslov --- Also experiencing this with Radeon RX 5700 XT and amdgpu 19.1.0+git1910111930.b467d2~oibaf~b with kernel version 5.3.7-050307-generic running KDE Neon User edition with latest updates. Didn't have any heavy load for the GPU to do. First I had some artifacts appeared on Plasma Hard Disk Monitor widget and CPU Load Widget (here is a screenshot: https://i.perk11.info/20191024_193152_kernel.png) while PC was idle and screen was locked, but everything else continued to work fine. I checked the logs for the period when this could've happened, but the only logs from that period are from KScreen that start like this: Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored) Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Output: 88 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Property: EDID Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: State (newValue, Deleted): 1 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored) Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Output: 88 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Property: EDID Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: State (newValue, Deleted): 1 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: RRNotify_OutputChange Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Output: 88 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: CRTC: 81 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Mode: 97 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Rotation: "Rotate_0" Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Connection: "Disconnected" Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Subpixel Order: 0 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: RRScreenChangeNotify Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Window: 18874373 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Root: 1744 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Rotation: "Rotate_0" Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Size ID: 65535 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Size: 7280 1440 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: SizeMM: 1926 381 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: RRNotify_OutputChange Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Output: 88 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: CRTC: 81 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Mode: 97 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Rotation: "Rotate_0" Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Connection: "Disconnected" Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xcb.helper: Subpixel Order: 0 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xrandr: XRandROutput 88 update Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: m_connected: 0 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: m_crtc XRandRCrtc(0x5655577da9f0) Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: CRTC: 81 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: MODE: 97 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: Connection: 1 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: Primary: false Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xrandr: Output 88 : connected = false , enabled = true Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: kscreen.xrandr: XRandROutput 88 update Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: m_connected: 1 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: m_crtc XRandRCrtc(0x5655577da9f0) Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: CRTC: 81 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: MODE: 97 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: Connection: 1 Oct 24 16:34:58 perk11-home org.kde.KScreen[25804]: Primary: false 90 minutes later, the system became unresponsive while I was typing a message in Skype, but the audio I had playing in Audacity continued to play and the cron jobs continued running normally for a few minutes while I was trying to get the system unstuck without rebooting it which I couldn't. Here are the errors: Oct 24 19:04:10 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:10 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:15 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:10 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:10 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:15 perk11-home kernel: [drm:amdgpu_dm_commit_planes.constprop.0 [amdgpu]] *ERROR* Waiting for fences timed out or interrupted! Oct 24 19:04:15 perk11-home kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout, signaled seq=3485981, emitted seq=3485983 Oct 24 19:04:15 perk11-home kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 2469 thread Xorg:cs0 pid 2491 Oct 24 19:04:15 perk11-home kernel: [drm] GPU recovery disabled. -- You are receiving this mail because: You are the assignee for the bug.