[radeon] Horizontal lines of screen corruption after last update.

[Norm Petroff]

A clean install is fine if I don't take updates. If I do take the updates and reboot then I get heavy video corruption. This just started today.

This is a dual boot system. The windows system has no issues. Appears to be software and not a hardware issue.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-36.40~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-36-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Jan 12 21:18:27 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [1002:679a] (prog-if 00 [VGA controller])
   Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO2 [Radeon HD 7950 Boost] [1002:3000]
InstallationDate: Installed on 2021-01-13 (0 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Hewlett-Packard HP Z420 Workstation
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-36-generic root=UUID=e1d90a30-a65a-46c5-bae3-c39bbf1a4e0e ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/29/2019
dmi.bios.release: 3.96
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: J61 v03.96
dmi.board.name: 1589
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 0.00
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrJ61v03.96:bd10/29/2019:br3.96:svnHewlett-Packard:pnHPZ420Workstation:pvr:rvnHewlett-Packard:rn1589:rvr0.00:cvnHewlett-Packard:ct6:cvr:
dmi.product.family: 103C_53335X G=D
dmi.product.name: HP Z420 Workstation
dmi.product.sku: D8N02UC#ABA
dmi.sys.vendor: Hewlett-Packard
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 N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.1~20.04.1
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

[Daniel van Vugt (vanvugt)]

Please try an older kernel like:

https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.89/amd64/

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Norm Petroff (normpetroff)]

tried an older kernel. No change.

5.4.0-42-generic

[Timo Aaltonen (tjaalton)]

Please test 20.10 live image, do you have the same corruption there?

[Norm Petroff (normpetroff)]

Same problem using the live image 20.10

[Norm Petroff (normpetroff)]

I upgraded my video card to a newer NVIDIA 1660 Ti. An expensive way to fix a bug :).