I just received an update which seems to have solved the problem on my laptop (tried suspend and resume -> no weird screen). According to /var/log/apt/history.log the latest updates are:
Install: linux-modules-extra-5.13.0-30-generic:amd64 (5.13.0-30.33~20.04.1, automatic), linux-modules-5.13.0-30-generic:amd64 (5.13.0-30.33~20.04.1, automatic), linux-headers-5.13.0-30-generic:amd64 (5.13.0-30.33~20.04.1, automatic), linux-hwe-5.13-headers-5.13.0-30:amd64 (5.13.0-30.33~20.04.1, automatic), linux-image-5.13.0-30-generic:amd64 (5.13.0-30.33~20.04.1, automatic) Upgrade: linux-headers-generic-hwe-20.04:amd64 (5.13.0.28.31~20.04.15, 5.13.0.30.33~20.04.17), linux-libc-dev:amd64 (5.4.0-99.112, 5.4.0-100.113), snapd:amd64 (2.54.2+20.04ubuntu2, 2.54.3+20.04.1), libarchive13:amd64 (3.4.0-2ubuntu1, 3.4.0-2ubuntu1.1), language-pack-en:amd64 (1:20.04+20210802, 1:20.04+20220211), linux-image-generic-hwe-20.04:amd64 (5.13.0.28.31~20.04.15, 5.13.0.30.33~20.04.17), linux-generic-hwe-20.04:amd64 (5.13.0.28.31~20.04.15, 5.13.0.30.33~20.04.17), language-pack-en-base:amd64 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.13 in Ubuntu. https://bugs.launchpad.net/bugs/1958591 Title: [amdgpu] Random noise 'static' display after internal display turned off/on Status in linux-hwe-5.13 package in Ubuntu: Confirmed Bug description: Laptop internal display shows random looking 'static' after it's turned off and then on again. e.g. on suspend/resume, or when plugging/unplugging an external monitor. This appeared to come after a `dist-upgrade` took the kernel from 5.11.0-44 to 5.13.0-25 (hwe). Others are seeing this with both NVidia and AMD graphics hardware: - https://www.reddit.com/r/Ubuntu/comments/s8c83w/laptop_shows_static_screen_after_going_into_lock/ - https://www.reddit.com/r/Ubuntu/comments/s8fit0/please_help_static_noise_display_on_ubuntu_2004/ I use i3 under gnome-flashback, but tried using default Ubuntu/Gnome both X and Wayland, and gnome-flashback/metacity. All showed the same problem. Also tried an `apt install --reinstall xserver-xorg-video-radeon libdrm-radeon1` for luck - no joy. Running a 20.04.3 live stick the problem does *not* occur. System: Thinkpad X13 Gen1 Processor: AMD Ryzen 7 PRO 4750U System Firmware: 1.35 $ lsb_release -rd Description: Ubuntu 20.04.3 LTS Release: 20.04 Happy to assist with investigations. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.13.0-27.29~20.04.1-generic 5.13.19 Uname: Linux 5.13.0-27-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: i3-GNOME-Flashback:GNOME-Flashback:GNOME Date: Thu Jan 20 19:37:09 2022 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Renoir [1002:1636] (rev d1) (prog-if 00 [VGA controller]) Subsystem: Lenovo Renoir [17aa:5082] InstallationDate: Installed on 2021-06-24 (210 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) MachineType: LENOVO 20UF0014US ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-27-generic root=UUID=5db0269f-fa23-487e-ace8-ba99bca814a8 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/20/2021 dmi.bios.release: 1.36 dmi.bios.vendor: LENOVO dmi.bios.version: R1CET67W(1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 20UF0014US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.36 dmi.modalias: dmi:bvnLENOVO:bvrR1CET67W(1.36):bd10/20/2021:br1.36:efr1.36:svnLENOVO:pn20UF0014US:pvrThinkPadX13Gen1:rvnLENOVO:rn20UF0014US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20UF_BU_Think_FM_ThinkPadX13Gen1: dmi.product.family: ThinkPad X13 Gen 1 dmi.product.name: 20UF0014US dmi.product.sku: LENOVO_MT_20UF_BU_Think_FM_ThinkPad X13 Gen 1 dmi.product.version: ThinkPad X13 Gen 1 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.105-3~20.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.5 version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.5 version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1958591/+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