*** This bug is a duplicate of bug 2163303 ***
https://bugs.launchpad.net/bugs/2163303
Public bug reported:
Symptom: an opaque solid-color or striped rectangle over half of the screen,
windows go under it, mouse cursor still draws on top of the rectangle.
It moved between monitors and changed color (red on one, green on the other) in
case i removed one of the monitors.
Switching to a tty hung the machine, requiring a hard reset
Reproduced identically on 7.0.0-30, 7.0.0-28, and 6.8.0-138 most probably not a
kernel regression
Clean in BIOS, clean in a 26.04 live session, clean in Windows, and monitor
self-test clean therefore not hardware
Downgrading linux-firmware 0ubuntu2.29 → 0ubuntu2.26 with an initramfs rebuild
fixed it completely
Two LG monitors directly connected to video card (PowerColor Red Devil RX 6900
XT Ultimate) via display port cables.
❯ lspci -k | grep -A3 -i 'vga\|display'
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi
21 [Radeon RX 6900 XT] (rev c0)
Subsystem: Tul Corporation / PowerColor Navi 21 XTXH [PowerColor Red
Devil RX 6900 XT Ultimate]
Kernel driver in use: amdgpu
Kernel modules: amdgpu
--
7b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Device 13c0 (rev cb)
Subsystem: ASRock Incorporation Device 364e
Kernel driver in use: amdgpu
Kernel modules: amdgpu
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-firmware 20240318.git3b128b60-0ubuntu2.26
ProcVersionSignature: Ubuntu 7.0.0-30.30~24.04.1-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: Regolith-Wayland:GNOME:sway
Date: Sun Aug 23 10:37:44 2026
Dependencies: firmware-sof-signed 2023.12.1-1ubuntu1.11
HibernationDevice: RESUME=UUID=faac2eee-cd9e-48ab-b47c-77daf7981d20
InstallationDate: Installed on 2024-11-01 (660 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64
(20240827.1)
MachineType: ASRock X870E Taichi
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/usr/bin/zsh
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-30-generic
root=UUID=b08e089f-a7ba-494a-96e6-1e0b7427af52 ro “spec_rstack_overflow=off”
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-7.0.0-30-generic N/A
linux-backports-modules-7.0.0-30-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.26
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/10/2026
dmi.bios.release: 5.41
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 4.10
dmi.board.asset.tag: Default string
dmi.board.name: X870E Taichi
dmi.board.vendor: ASRock
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr4.10:bd02/10/2026:br5.41:svnASRock:pnX870ETaichi:pvrDefaultstring:rvnASRock:rnX870ETaichi:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:pfaDefaultstring:
dmi.product.family: Default string
dmi.product.name: X870E Taichi
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: ASRock
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
** This bug has been marked a duplicate of bug 2163303
[regression] linux-firmware 20240318.git3b128b60-0ubuntu2.29 causes
half-screen corruption/black screens on AMD Navi 21; 0ubuntu2.26 works
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2164839
Title:
Solid color block overlay on displays after linux-firmware upgrade to
0ubuntu2.29; fixed by downgrade to 0ubuntu2.26
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2164839/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
