Ubuntu
linux package

Thunderbolt dock usb ports not working

Bug #1950780 reported by Jon Jahren
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

I have a Lenovo Thunderbolt 3 Gen 2 dock and wanted to use this with Ubuntu 21.10. When booting an unmodified version the usb ports do not work. After an inspection with journalctl I find the error message "No bus number available for hot-added bridge" and a google search led me to this workaround: Add pci=realloc,assign-busses,hpbussize=0x33. This line as a boot parameter makes the dock work as intended. I believe this should be fixed so that people using the live image can see that their hardware works as intended before installing.

Revision history for this message
Jon Jahren (jon-jahren) wrote :
Revision history for this message
Jon Jahren (jon-jahren) wrote :

Adding dmesg output from computer

Revision history for this message
Jon Jahren (jon-jahren) wrote :

I am also adding the output from boltctl, if you need any other info please advise.

Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
tags: added: impish
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.