[Bug 2161821] Re: amdgpu: RX 7900 XTX fans dont poweroff regression in 7.0.0-28, 7.0.0-27 good

** Summary changed: - amdgpu: RX 7900 XTX fans spin up on poweroff regression in 7.0.0-28, 7.0.0-27 good + amdgpu: RX 7900 XTX fans dont poweroff regression in 7.0.0-28, 7.0.0-27 good ** Summary changed: - amdgpu: RX 7900 XTX fans dont poweroff regression in 7.0.0-28, 7.0.0-27 good + amdgpu: RX 7900 XTX fans spin in S5 (soft-off) regression in 7.0.0-28, 7.0.0-27 good -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2161821 Title: amdgpu: RX 7900 XTX fans spin in S5 (soft-off) regression in 7.0.0-28, 7.0.0-27 good Status in linux package in Ubuntu: New Bug description: On shutdown, the RX 7900 XTX fans spin up and continue running while the system is in S5 (soft-off). The rest of the machine powers down correctly, confirmed by the fact that switching off the PSU stops the fans, so this is standby-rail behaviour, not a shutdown hang. Regression, bisected between Ubuntu kernel builds: 7.0.0-27-generic — GOOD (fans stop on poweroff) 7.0.0-28-generic — BAD (fans spin in S5) Reproducible both directions, multiple cycles each. Hardware: Ryzen 7 7600X, ASRock B850I Lightning WiFi. Two amdgpu-bound devices present: RX 7900 XTX (03:00.0, DCN 3.2) as the discrete/display GPU, plus the Raphael iGPU (0b:00.0, DCN 3.1.5), which amdgpu still fully initialises. Poweroff teardown covers both. Not yet tested on mainline; willing to test a mainline kernel to confirm whether this is an Ubuntu-delta regression or upstream, if a triager wants that. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-28-generic 7.0.0-28.28 ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12 Uname: Linux 7.0.0-28-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Sun Jul 26 18:11:16 2026 InstallationDate: Installed on 2025-11-07 (261 days ago) InstallationMedia: Kubuntu 25.10 "Questing Quokka" - Release amd64 (20251007) IwDevWlp7s0Link: Not connected. MachineType: ASRock B850I Lightning WiFi ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic root=UUID=b80b57ad-ad0b-4866-844f-72c840a6557d ro quiet splash maxcpus=12 smt=on nvme_core.io_timeout=4 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: linux UpgradeStatus: Upgraded to resolute on 2026-02-15 (161 days ago) dmi.bios.date: 12/11/2025 dmi.bios.release: 5.40 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: 4.03 dmi.board.asset.tag: Default string dmi.board.name: B850I Lightning WiFi 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.:bvr4.03:bd12/11/2025:br5.40:svnASRock:pnB850ILightningWiFi:pvrDefaultstring:rvnASRock:rnB850ILightningWiFi:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:pfaDefaultstring: dmi.product.family: Default string dmi.product.name: B850I Lightning WiFi dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: ASRock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161821/+subscriptions