Thanks. It was unclear from the first bug which monitor was flickering. In the first bug it sounded like the laptop. In this second bug it sounded like the external monitor. Now the video shows it's the laptop screen.
Is it only the laptop screen flickering? I'm wondering if this is due to a loss of HDMI connection to the external monitor causing the system to reconfigure all displays including the built-in. Next time the problem happens, please open a Terminal and run: journalctl -b0 > journal.txt and attach the resulting file here. -- 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/2062950 Title: RE: Flickering problems on external monitor with HDMI after installing Ubuntu 23.10 Status in linux package in Ubuntu: Incomplete Bug description: this is a continuation of the bug reported in https://bugs.launchpad.net/ubuntu/+bug/2062504 I reinstalled ubuntu 23, and didn't install anything else. I'm still having the flickering when connecting an HDMI to an external monitor. please help ProblemType: Bug DistroRelease: Ubuntu 23.10 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 6.5.0-28.29-generic 6.5.13 Uname: Linux 6.5.0-28-generic x86_64 ApportVersion: 2.27.0-0ubuntu5 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CloudArchitecture: x86_64 CloudID: none CloudName: none CloudPlatform: none CloudSubPlatform: config CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Apr 19 22:27:21 2024 DistUpgraded: Fresh install DistroCodename: mantic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Alder Lake-UP3 GT2 [Iris Xe Graphics] [8086:46a8] (rev 0c) (prog-if 00 [VGA controller]) Subsystem: Lenovo Alder Lake-UP3 GT2 [Iris Xe Graphics] [17aa:50a6] InstallationDate: Installed on 2024-04-20 (0 days ago) InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1) MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']} ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-28-generic root=UUID=92611de2-ed0a-4611-b724-820a5d29be02 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/23/2024 dmi.bios.release: 1.23 dmi.bios.vendor: LENOVO dmi.bios.version: R1UET46W (1.23 ) dmi.board.asset.tag: Not Available dmi.board.name: 21B4S4QB00 dmi.board.vendor: LENOVO dmi.board.version: SDK0T76465 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.14 dmi.modalias: dmi:bvnLENOVO:bvrR1UET46W(1.23):bd02/23/2024:br1.23:efr1.14:svnLENOVO:pn21B4S4QB00:pvrThinkPadL13Gen3:rvnLENOVO:rn21B4S4QB00:rvrSDK0T76465WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21B4_BU_Think_FM_ThinkPadL13Gen3: dmi.product.family: ThinkPad L13 Gen 3 dmi.product.name: 21B4S4QB00 dmi.product.sku: LENOVO_MT_21B4_BU_Think_FM_ThinkPad L13 Gen 3 dmi.product.version: ThinkPad L13 Gen 3 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.115-1 version.libgl1-mesa-dri: libgl1-mesa-dri 23.2.1-1ubuntu3 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-3ubuntu2.9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3 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/+bug/2062950/+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
