Evv1L :blobcatlaptop:

@someoneFromInternet let me know if the issue will resolve after an update.

@someoneFromInternet looks old. Current BIOS version is 1.52.

You may have bugged version of thunderbolt controller as well.

Run fwupdmgr get-devices as root to check Thunderbolt Firmware version. Find “T480 Thunderbolt Controller” in output and check “Version” parameter.

It should say “20.00” or higher. If it’s lower then I highly recommend you to upgrade your firmware ASAP!

Install fwupd and run these commands to update your firmware (run as root):

fwupdmgr refresh  
fwupdmgr update   

For more info check out this wiki page:
https://wiki.archlinux.org/title/Fwupd

@someoneFromInternet what BIOS version do you have? You can update firmware on T480 without USB stick. Use fwupd util.

@CorrodedCranium if you can afford a 600$ computer, maybe Framework will be a decent choice?

@pastermil X230 had it for a long time. But you have to do a BGA rework, 'cause CPU is not socketed like on T-series of that era.

@monovergent