My Shuttle PC has standard USB 2 ports, some blue USB 3 ports on the front, and some red USB 3.1 ports on the back.

The 3.1 ports seem to work fine, but the 3.0 ports don't. At least when running linux. If I plug something like a mouse in, it keeps randomly switching on and off. If I plug in a USB flash drive (or card reader), again, it keeps switching on and off causing data transfer to corrupt. This happens in both Slackware 14.2 and Debian 12, and a few different kernel versions.

I'm doubtful its a hardware fault though, as the same USB 3.0 ports work fine in Windows 10. I have recently set the machine up with Windows 10 Enterprise LTSC and and previously tried 10 Pro and all the USB ports seem to work fine.

Anyone got any ideas?
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