Actually this might be a variation on bug 1965882 so please also try adding a kernel parameter:
intel_iommu=off I don't know if AMD CPUs will require a different parameter. -- 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/2006370 Title: [nouveau] Terribly flicking and blicking HDMI-port display Status in linux package in Ubuntu: Confirmed Bug description: Hi, I have HP15 Gaming Pavilion bought 2-3 years ago. I had Windows 10 before (not it is the second OS due to this bug [I can't use Ubuntu with this bug]), and Win 10 has no problems. No solution [that I found over the internet] worked. I have to have at least two displays. My connection technology: PC HDMI output -> HDMI-VGA(+audio) transmitter -> LED 20' Display (external monitor) Win 10 have never had any problems with it (it has good drivers). When I add any input to the second screen - it blinks and flickers so terrible that I can see nothing - a white screen problem. If I do nothing - it will turn to some picture in some time, but if I make any action at the second monitor - flickering and the white screen problem appears again. I think these are drivers. I tested the equipment in Win 10 after I found this bug - and it works perfectly (so, the hardware is good). It is a typical notebook and this bug is crucial. I use two monitors to type codes and work on PC. I can't survive with just one monitor. Right now when I am typing you this message the second monitor became white again for quite a long time (I did nothing there). I hope you will be able to fix this bug :) Best wishes, Alex, Prague, Czech Republic, EU PS: When typing this message I found another bug compared to MS Windows. When making screenshots (Alt/Shift + Print Screen) - it makes perfect picture even when you actually have the second monitor white all the time (so the screenshot is not how it is). I made an actual photo (and deleted some parts of the background not related to the monitors/computer). You can see a white screen, but the screenshot shows a "perfect world" with a perfect picture which is not how it is on the screen. Windows, on the contrary, makes actual screenshots. And Win 10 test of this monitor never have this white screen or any other monitor problems. Moreover, when the monitors stops to be white for a second it depicts different picture (more terrible image; it is disproportional, with font heavily readable, but the screenshot functions shows an "ideal world" a user can never see :) I made this detailed description to help Ubuntu. I think the project is great in concept, but poor in realization. Such bugs make it impossible for users to use Ubuntu (who can work on just one monitor? Who do not wish to make screenshots with what he/she actually sees on the monitor [rather than modified images with the pictures users do not actually see]?). ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-58.64-generic 5.15.74 Uname: Linux 5.15.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.3 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Feb 6 19:45:32 2023 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation TU117M [10de:1f99] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company TU117M [103c:87b1] Advanced Micro Devices, Inc. [AMD/ATI] Renoir [1002:1636] (rev c6) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Renoir [103c:87b1] InstallationDate: Installed on 2023-02-04 (2 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) MachineType: HP HP Pavilion Gaming Laptop 15-ec1xxx ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-58-generic root=UUID=30f188c5-d67f-4f68-ba6d-6995864ff95e ro quiet splash loglevel=3 vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/18/2021 dmi.bios.release: 15.25 dmi.bios.vendor: AMI dmi.bios.version: F.25 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 87B1 dmi.board.vendor: HP dmi.board.version: 31.23 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 31.23 dmi.modalias: dmi:bvnAMI:bvrF.25:bd08/18/2021:br15.25:efr31.23:svnHP:pnHPPavilionGamingLaptop15-ec1xxx:pvr:rvnHP:rn87B1:rvr31.23:cvnHP:ct10:cvrChassisVersion:sku1N3L2EA#ACB: dmi.product.family: 103C_5335KV HP Pavilion dmi.product.name: HP Pavilion Gaming Laptop 15-ec1xxx dmi.product.sku: 1N3L2EA#ACB dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.5-0ubuntu0.1~22.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2.6 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/+bug/2006370/+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
