My issue with Intel 12th gen regularly losing display signal *appears* to be fixed by using kernel 6.1. Fingers crossed it stays fixed.
-- 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/1929209 Title: [i915] external monitor goes black for several seconds at a time, randomly Status in linux package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Fix Released Bug description: At times it is completely debilitating; at other times it does not happen for hours. The physical connections are clean and solid. I guess the attachments will show that I'm using Intel graphics hardware. The monitor is a very popular Samsung one. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-73.82-generic 5.4.106 Uname: Linux 5.4.0-73-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.17 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu May 20 16:56:04 2021 DistUpgraded: 2020-06-01 15:46:34,953 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process “./xorg_fix_proprietary.py” (No such file or directory) (8)) DistroCodename: focal DistroVariant: ubuntu DkmsStatus: virtualbox, 6.1.16, 5.4.0-73-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5500 [17aa:5036] InstallationDate: Installed on 2019-01-24 (847 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: LENOVO 20BXCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-73-generic root=UUID=a6081f39-700f-4698-bda4-464e53d9d229 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to focal on 2020-06-01 (353 days ago) dmi.bios.date: 09/13/2017 dmi.bios.vendor: LENOVO dmi.bios.version: JBET66WW (1.30 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW 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.modalias: dmi:bvnLENOVO:bvrJBET66WW(1.30):bd09/13/2017:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T450s dmi.product.name: 20BXCTO1WW dmi.product.sku: LENOVO_MT_20BX_BU_Think_FM_ThinkPad T450s dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2 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/+bug/1929209/+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