This problem is persisting and today I noticed something I think might help pinpoint the problem.
I was playing a slide show in shotwell when the screen went black again and when it came back on after a few seconds, the last picture displayed was stuck and the new pictures were displaying in a corner in a much smaller frame as if the system just tried to reset the resolution to something much smaller and then changed its mind and reverted (but shotwell didn't get the message and kept rendering to the small resolution rather than the wide one). Hope this helps to pinpoint the issue. ** Attachment added: "IMG_20211116_111933.jpg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926032/+attachment/5541181/+files/IMG_20211116_111933.jpg -- 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/1926032 Title: [i915] Screen "disconnects" when updating screen buffer Status in linux package in Ubuntu: Confirmed Bug description: I have a problem in which the screen will behave as if I pulled the HDMI or turned the computer off (no source) for a few seconds until the screen comes back on again. This happens a lot when I open a new window, moves the mouse after it has been still for a while or I open a new window or move the current window. I can watch a whole movie without this problem but as soon as I pause or touch the controls of VLC or move the mouse the problem reocurr. It seems to be after a certain idle period most of the time, but not always. Sometimes it happens many times in a row. The setup is my home built media PC with intel integrated graphics (i5-9400) connected to a philips 55" TV (55POS901F) through a Pioneer AV receiver. I have tried probably every possible resolution and screen update frequency and the problem is still there. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86 Uname: Linux 5.4.0-66-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Apr 24 21:57:54 2021 DistUpgraded: 2020-12-01 07:11:08,428 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation UHD Graphics 630 (Desktop 9 Series) [8086:3e98] (rev 02) (prog-if 00 [VGA controller]) Subsystem: ASRock Incorporation UHD Graphics 630 (Desktop 9 Series) [1849:3e98] InstallationDate: Installed on 2020-12-01 (144 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0aa7 Intel Corp. Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-66-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to focal on 2020-12-01 (144 days ago) dmi.bios.date: 05/14/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P4.10 dmi.board.name: H310CM-ITX/ac dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP4.10:bd05/14/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH310CM-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. 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/1926032/+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
