Public bug reported:
When running kernel 7.0.0-38 in my kubuntu system I get visual artifacts
all over the place.
7.0.0-34 is fine, 7.0.0-38 causes screen artifacts, I have an RX 9070.
Artifacts show randomly, but most clearly show if I move the screen
brightness slider, I have HDR on.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-34-generic 7.0.0-34.34
ProcVersionSignature: Ubuntu 7.0.0-34.34-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Wed Oct 14 09:04:24 2026
InstallationDate: Installed on 2026-06-29 (107 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
IwDevWlp9s0Link: Not connected.
MachineType: Gigabyte Technology Co., Ltd. B850 AORUS ELITE WIFI7
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-34-generic
root=UUID=ec0ead81-c8a1-4d73-b876-41539625716b ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/30/2026
dmi.bios.release: 5.41
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: F12b
dmi.board.asset.tag: Default string
dmi.board.name: B850 AORUS ELITE WIFI7
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
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.:bvrF12b:bd06/30/2026:br5.41:svnGigabyteTechnologyCo.,Ltd.:pnB850AORUSELITEWIFI7:pvrDefaultstring-WCP-ADO:rvnGigabyteTechnologyCo.,Ltd.:rnB850AORUSELITEWIFI7:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:pfaB850MB:
dmi.product.family: B850 MB
dmi.product.name: B850 AORUS ELITE WIFI7
dmi.product.sku: Default string
dmi.product.version: Default string-WCP-ADO
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2170784
Title:
Kernel 7.0.0-38 - Visual artifacts
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