[Bug 2150759] Re: Bug Report: xHCI resume failure after upgrade to 7.0.0-15-generic

After further investigation, this is not a kernel bug. The issue is caused by NVIDIA driver 595.71.05. The xHCI resume failure on the TU116 USB 3.1 Host Controller (10de:1aec at 0000:01:00.2) persists across kernels 7.0.0-14 and 7.0.0-15, but is resolved by reverting the NVIDIA driver to 595.58.03. With 595.58.03 and kernel 7.0.0-15, Bluetooth devices reconnect normally after suspend. Marking as Invalid. Will file a bug with NVIDIA for the 595.71.05 regression. ** Changed in: linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2150759 Title: Bug Report: xHCI resume failure after upgrade to 7.0.0-15-generic Status in linux package in Ubuntu: Invalid Bug description: ## Description After upgrading from kernel 7.0.0-14-generic to 7.0.0-15-generic, the NVIDIA TU116 USB 3.1 Host Controller (01:00.2) fails to resume from suspend. This causes all USB devices behind that controller to become unavailable after resume, including the Bluetooth adapter (Intel AX201), which prevents Bluetooth peripherals from reconnecting. Reverting to kernel 7.0.0-14-generic resolves the issue — suspend/resume works correctly and Bluetooth devices reconnect as expected. ## Steps to Reproduce 1. Install kernel 7.0.0-15-generic on a system with an NVIDIA TU116 USB controller 2. Suspend the system (suspend-to-RAM / deep) 3. Resume ## Expected Result xHCI controller resumes successfully; Bluetooth (and other USB) devices reconnect. ## Actual Result xHCI controller fails to resume with error: ``` xhci_hcd 0000:01:00.2: xHC error in resume, USBSTS 0x401, Reinit ``` Bluetooth device (Logitech MX Master 3S via Intel AX201) does not reconnect. Requires reboot to restore functionality. ## Relevant Journal Logs (kernel 7.0.0-15, boot -1) ``` Apr 29 21:07:10 iaw kernel: PM: suspend entry (deep) Apr 30 17:19:03 iaw kernel: xhci_hcd 0000:01:00.2: xHC error in resume, USBSTS 0x401, Reinit Apr 30 17:19:03 iaw kernel: PM: suspend exit ``` ## Regression - **Working kernel:** 7.0.0-14-generic - **Broken kernel:** 7.0.0-15-generic - Upgrade performed: 2026-04-29 19:43 via `apt upgrade` ## System Information - **Distro:** Ubuntu 26.04 LTS (Resolute Raccoon) - **System:** Alienware Area-51m R2 - **Affected controller:** NVIDIA Corporation TU116 USB 3.1 Host Controller [10de:1aec] (rev a1) at 01:00.2 - **Bluetooth adapter:** Intel Corp. AX201 (8087:0026) on bus 001 - **Other USB controllers (unaffected):** - Intel Comet Lake USB 3.1 xHCI [8086:06ed] at 00:14.0 - Intel JHL7540 Thunderbolt 3 [8086:15e9] at 3f:00.0 - **NVIDIA driver:** 595.71.05 (unchanged, installed Apr 26) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2150759/+subscriptions