Without mirroring, please try reducing the resolution of the external monitor. Does that stop the flicker?
** Summary changed: - [ASUS GL552VW] Screen flickering on external monitor + [ASUS GL552VW] Loss of signal (black screen) on external monitor -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor Status in mutter package in Ubuntu: Incomplete Bug description: External screen flickers on and off (image is present and then signal is lost, flickering is random, but very often, ~3 times in 10 seconds) on a fresh installation. Details: - I'm using a laptop (ASUS GL552VW) with external monitor connected via HDMI. The HDMI port is connected to my iGPU, Intel HD 530 (there is no way to make that HDMI work with NVIDIA GTX 960M in my laptop). - Nothing was installed after installing the OS - i connected to the Internet while installing the system and marked the option to download the updates. - I had that issue on Windows 10 - I fixed it by installing a latest Intel GPU driver from laptop manufacturer's (ASUS) site, uninstalling drivers installed by Windows - they were the latest Intel drivers. - Internal screen works fine. - If I mirror external and internal monitor, external isn't flickering, but internal monitor's resolution is lower that external's one. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-33.34-generic 5.15.30 Uname: Linux 5.15.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu May 26 22:34:16 2022 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation HD Graphics 530 [8086:191b] (rev 06) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. HD Graphics 530 [1043:1c5d] Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 960M] [1043:1c5d] InstallationDate: Installed on 2022-05-26 (0 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) MachineType: ASUSTeK COMPUTER INC. GL552VW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-33-generic root=UUID=be9d6e78-64ad-42f3-883b-15903e52b776 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/25/2019 dmi.bios.release: 5.11 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: GL552VW.304 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: GL552VW dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrGL552VW.304:bd04/25/2019:br5.11:svnASUSTeKCOMPUTERINC.:pnGL552VW:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnGL552VW:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:skuASUS-NotebookSKU: dmi.product.family: GL dmi.product.name: GL552VW dmi.product.sku: ASUS-NotebookSKU dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.110-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3 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/mutter/+bug/1975872/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
