Please can someone give me some direction on how to get USB ports working on a Thinkpad 1834-RVM laptop. Neither my mouse nor USB drive are anyway acknowledged.
Thanks
What revision of Haiku are you using?
Can you also post the output of
~ listusb
?
Do you have any USB related configuration in the BIOS? Like “USB Legacy” or something like that… It’s not sure, but maybe changing that settings the USB ports will work.
I hate to go over the obvious, but it can be easy to overlook: did the usb ports work under a different operating system like Windows? I once had a computer with a messed up motherboard, and could never get the usb ports to work properly under any operating system, Windows or not. Well, actually, I’ve still got that computer. I just don’t use it every day. 
On the BIOS front, I think some thinkpads let you enable/disable diffirent USB ports. So yes, check ALL your BIOS settings.
Second, if this is a used computer, get a flashlight and look inside all the USB ports. I don’t know how they do (well, I can guess how) but at the repair shop that I work at we find the plastic finger inside the port has often been broken and the now free standing contacts/wires sometimes are touching each other. If the power line get grounded the unit will not boot, but if the data/clock lines are in contact the USB controller has problems setting up.
You may have one bad port and still a good port available once you move the contacts so the don’t contact. And that is not a pun.