Score:0

Ubuntu 21.04 (5.11.0-25-generic), Thinkpad T14S (AMD) - USB ports not reacting / working anymore

us flag

maybe someone has come across the same problem or can help me otherwise.

Since two days, my two USB ports are not reacting anymore. Nothing is recognized or charged on them (SSD drive, charging my phone & watch, USB splitter, mouse, keyboard...). With and without power connection of the Laptop.

I run Ubuntu 21.04 (kernel: 5.11.0-25-generic).

I have a Thinkpad T14S, AMD version. -> https://www.campuspoint.de/20ujs00k00-lenovocampus-thinkpad-t14s-amd.html

I deactivated and activated them in the BIOS it doesn't solve the problem.

Unfortunately, I do not understand where the problem could be.

About tips and ideas I would be very very grateful.

Many thanks already.

Christopher

Christopher avatar
us flag
Sorry, you are right, Ubuntu 21.04. I updated a bit frustrated with the hope to sneak away from this problem.
guiverc avatar
cn flag
Are you sure the USB ports haven't been short-circuited (ie. a thumb-drive wasn't pulled out straight & two 5V wires connected? fully-ejecting with power-off of thumb-drives should prevent this, but if it wasn't done, the USB ports maybe dead). By testing with a *live* system (I'd use a different OS) you can test they work & thus spend time looking for a software solution like this question; but I'd check our your hardware first.
guiverc avatar
cn flag
Does this answer your question? [AMD System fresh install , Only USB 3 working (IOMMU?)](https://askubuntu.com/questions/841390/amd-system-fresh-install-only-usb-3-working-iommu)
Score:1
br flag

ThinkPad-P14s-Gen-1 5.11.0-25-generic #27~20.04.1-Ubuntu two of the three USB ports not working, maybe after kernel upgrade. Disabled "USB Always On" on Bios settings to get them working again.

Score:0
us flag

Found a solution that worked for me by changing the grub file.

AMD System fresh install , Only USB 3 working (IOMMU?)

If you have similar problems, don't hesitate to contact me, I spend way too much time with this...

Score:0
cn flag

Disabling "USB Always On" in Bios was probably the trick which makes USB working again under Ubuntu 18.04 on a ThinkPad notebook.

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.