I have a Lenovo X1 Carbon Gen 12. The other day I noticed both of my USB-C ports are not receiving or sending data. External drives won’t mount and my dock won’t send signal to my monitor, but when I plug in my charging cable I am still getting power. When I use “lsblk” nothing shows up, even though sometimes I hear the chime signaling something has been plugged in (but it’s inconsistent and sometimes doesn’t chime).

Both of my USB-A ports are working properly and receive data, so it’s only my USB-C ports.

I’m running Ubuntu 24.04.3. I tried to revert back to an earlier kernel in case that was the problem but it didn’t fix the issue.

Anyone have a similar issue? Thanks!

  • stravanasu@lemmy.ca
    4·
    3 days ago

    X1 Carbons of several generations have been notorious for their Thunderbolt defects, which appear after a while. For instance this or this (sorry for the Reddit links), and there are others related to connecting to screens. Right these days I’m dealing with the Thunderbolt-charging defect in my Gen 9. Luckily still under warranty.

    Best of luck with your problem! I suggest you use your warranty if still active (and better with on-site assistance than sending the thing).

  • ShimitarAEnglish
    1·
    3 days ago

    Try a different distro from USB live. As different as possible. It might be a kernel snag or bug and any similar ubuntu might have the same issue…

    Even a CLI only one just to test USB-c

  • brownmustardminion@lemmy.ml
    12·
    3 days ago

    Try turning off the device, remove the battery, then take a safety pin and compressed air and scrape out any dust I’m the usb-c port then spray with air. I had a issue with my phone charging but not getting data. I spent a solid 15mins doing the above and it fixed it.

    A good test is to see how firmly the usb-c sticks in the port. If it comes out pretty easy or feels seated sloppily then it probably just needs a good cleaning.

  • Dagwood_Sanwich@lemmy.world
    23·
    3 days ago

    Try to boot up an OS with a USB stick on a usb port you know works and see if the USB C ports start working. If they don’t, it’s probably a hardware issue. If they do work, it may be a driver issue.

    • collar@lemmy.worldOP
      1·
      3 days ago

      Hmmm. Booted a live version of Ubuntu off a USB stick and got the same result: No mounting of a thumbdrive on USB-C but it worked on USB-A. This is the second time I’ve had something like this happen with Ubuntu. I bought an X1 Gen 9 and the computer just stopped recognizing the battery. I was within the return period so I just sent it back and got the Gen 12. Now, I’m having a USB-C issue.

      I haven’t had any damage or physical issues that would explain a loss of the usb-c ports. Additionally, the ports still work to charge the computer, so they physically must be working (at least in some capacity). I’m stumped.

      Edit: Now that I think about it, the only thing I can think of is that I recently bought a UGreen 65W power brick. It’s the same wattage as my official lenovo charger. I wonder if that is behind it.

      • Dagwood_Sanwich@lemmy.world
        23·
        3 days ago

        That’s possible. Not all physical damage on a computer is visible to the naked eye.

        If your computer has a selective USB suspend setting, try turning it off.

        Alternatively, try pulling the battery out, holding the power button for several seconds to drain all power from the machine, then putting the battery back in and seeing if that does anything.