[Bug 2166167] Re: typec_ucsi: WARNING in typec_altmode_update_active after suspend/resume on Thinkpad AMD HawkPoint

Hello Gerard, thanks for submitting a bug report. May I ask if this is a new regression? Did the display work before, but started misbehaving after a kernel update? Has it ever worked? Additionally, there is a new kernel available. Could you try running updates to see if the issue persists? Thanks! ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Benjamin Wheeler (benjaminwheeler) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2166167 Title: typec_ucsi: WARNING in typec_altmode_update_active after suspend/resume on Thinkpad AMD HawkPoint Status in linux package in Ubuntu: Incomplete Bug description: After resuming from suspend, USB-C DisplayPort Alt Mode stops working. The external monitor briefly wakes up on cable plug/unplug but reports "no signal". All DP connectors show "disconnected" in /sys/class/drm/. The following warning repeats in dmesg on each cable plug: WARNING: drivers/usb/typec/class.c:311 typec_altmode_update_active+0x101/0x110 [typec] ucsi_altmode_update_active+0x116/0x1b0 [typec_ucsi] ucsi_check_altmodes+0x92/0xd0 [typec_ucsi] Hardware: Thinkpad with AMD HawkPoint (Ryzen AI / 8000 series) Kernel: 7.0.0-30-generic (Ubuntu 26.04) Connector: USB-C to DisplayPort cable Workaround: none found (module reload crashes the system) ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: GNOME Date: Wed Sep 2 11:39:23 2026 InstallationDate: Installed on 2025-07-01 (428 days ago) InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3) MachineType: LENOVO 21ME000RFR ProcEnviron: LANG=fr_FR.UTF-8 PATH=(custom, no user) SHELL=/bin/zsh TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-29-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M 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 2026-06-09 (85 days ago) dmi.bios.date: 05/21/2026 dmi.bios.release: 1.22 dmi.bios.vendor: LENOVO dmi.bios.version: R2LET41W (1.22 ) dmi.board.asset.tag: Not Available dmi.board.name: 21ME000RFR dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.13 dmi.modalias: dmi:bvnLENOVO:bvrR2LET41W(1.22):bd05/21/2026:br1.22:efr1.13:svnLENOVO:pn21ME000RFR:pvrThinkPadP14sGen5AMD:rvnLENOVO:rn21ME000RFR:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21ME_BU_Think_FM_ThinkPadP14sGen5AMD:pfaThinkPadP14sGen5AMD: dmi.product.family: ThinkPad P14s Gen 5 AMD dmi.product.name: 21ME000RFR dmi.product.sku: LENOVO_MT_21ME_BU_Think_FM_ThinkPad P14s Gen 5 AMD dmi.product.version: ThinkPad P14s Gen 5 AMD dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2166167/+subscriptions