I have access to a certified laptop which has this problem. If you have any test kernels one could use, please tell. Or better yet, a fixed kernel from Canonical/Lenovo (is there any proposed section in the OEM archives?).
Not willing to update to 24.04 since in production use and updating might have other regressions (also linked here). Plus 22.04 is supported still for 3 years. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.5 in Ubuntu. https://bugs.launchpad.net/bugs/2070096 Title: [amdgpu] Graphics driver issue: Display goes black for a second at random: [drm:link_enc_cfg_validate [amdgpu]] *ERROR* link_enc_cfg_validate: Invalid link encoder assignments - 0x1c Status in linux-oem-6.5 package in Ubuntu: Confirmed Bug description: After some update my display randomly goes black for just a second and comes back. It happens randomly and I looked into journalctl and found this error message. Jun 22 15:45:25 nikhil-T14 rtkit-daemon[1192]: Supervising 8 threads of 4 processes of 1 users. Jun 22 15:45:25 nikhil-T14 rtkit-daemon[1192]: Supervising 8 threads of 4 processes of 1 users. Jun 22 15:45:55 nikhil-T14 systemd[1579]: Started Application launched by gnome-shell. Jun 22 15:46:12 nikhil-T14 gnome-shell[1735]: meta_window_set_stack_position_no_sync: assertion 'window->stack_position >= 0' failed Jun 22 15:46:20 nikhil-T14 kernel: [drm:link_enc_cfg_validate [amdgpu]] *ERROR* link_enc_cfg_validate: Invalid link encoder assignments - 0x1c ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 6.5.0-1024.25-oem 6.5.13 Uname: Linux 6.5.0-1024-oem x86_64 ApportVersion: 2.20.11-0ubuntu82.5 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Jun 22 15:50:25 2024 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:15bf] (rev dd) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:50d9] InstallationDate: Installed on 2024-05-22 (30 days ago) InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220) MachineType: LENOVO 21K4CTO1WW ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/usr/bin/zsh ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-1024-oem root=UUID=d21844b5-a890-4fbf-9467-81c69986a31d ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/20/2024 dmi.bios.release: 1.35 dmi.bios.vendor: LENOVO dmi.bios.version: R2FET55W (1.35 ) dmi.board.asset.tag: Not Available dmi.board.name: 21K4CTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.16 dmi.modalias: dmi:bvnLENOVO:bvrR2FET55W(1.35):bd02/20/2024:br1.35:efr1.16:svnLENOVO:pn21K4CTO1WW:pvrThinkPadT14Gen4:rvnLENOVO:rn21K4CTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21K4_BU_Think_FM_ThinkPadT14Gen4: dmi.product.family: ThinkPad T14 Gen 4 dmi.product.name: 21K4CTO1WW dmi.product.sku: LENOVO_MT_21K4_BU_Think_FM_ThinkPad T14 Gen 4 dmi.product.version: ThinkPad T14 Gen 4 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 23.2.1-1ubuntu3.1~22.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.10 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.5/+bug/2070096/+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
