Thinkpad P1 Gen 6（Manjaro系统）：Thunderbolt 3扩展坞与USB-C充电突然失效求助

Hey there, sorry to hear your dock stopped working out of nowhere—those sudden glitches are the absolute worst! Let’s walk through some practical troubleshooting steps to get your Belkin Thunderbolt 3 Dock back up and running with your ThinkPad:

• First, try the classic power cycle trick: Unplug the dock from both your laptop and the power outlet, wait a full 30 seconds, then plug everything back in. Thunderbolt docks often just need a hard reset to clear temporary connection bugs.

• Check Thunderbolt security settings in BIOS: Boot into your ThinkPad’s BIOS/UEFI (usually by pressing F1 or Enter during startup), look for Thunderbolt-related options. Make sure the security level isn’t set to an overly restrictive mode that might block the dock. Try switching it to "Legacy Mode" or "Secure Connect" if available, save changes, and reboot to test.

• Reload the problematic kernel modules: Since you mentioned usci_acpi and typec_ucsi show up in your lsmod output, let’s reset these modules to fix any stuck states. Open a terminal and run these commands one by one:

  sudo rmmod usci_acpi
  sudo rmmod typec_ucsi
  sudo modprobe typec_ucsi
  sudo modprobe usci_acpi
  

  After running these, disconnect and reconnect the dock to see if it starts working again.

• Update your system and firmware: Manjaro might have pending kernel or Thunderbolt-related package updates that could resolve the issue. Run sudo pacman -Syu to update your entire system, then use fwupdmgr get-updates to scan for and apply any firmware updates for your ThinkPad’s Thunderbolt controller.

• Rule out dock hardware failure: If you have access to another laptop with Thunderbolt 3/USB-C, plug the dock into it. If it works on the other device, the problem is likely specific to your ThinkPad’s configuration; if not, the dock itself might have failed.

• Inspect the USB-C port: Check your ThinkPad’s USB-C port for lint, debris, or physical damage. Sometimes a tiny piece of dirt can block the connection—use a soft dry toothbrush or compressed air to gently clean the port (make sure the laptop is powered off first!).

I’ve dealt with similar Thunderbolt dock issues on Manjaro before, and usually one of these steps does the trick. Let me know how it goes!

备注：内容来源于stack exchange，提问作者jonashackt