ZenSay

Igor: Thanks for the info, I will order a new T6 which I assume will be the v2 revision. Perhaps things will work out better - let's see.

Igor: Sorry, not trying to make unreasonable demands here, it just seemed that there was already a solution and that I was simply doing something wrong. So if this is a general Rockchip (RK3588) issue then I guess it would be the same across all the different SBCs? I'm a software developer so can absolutely try to work on this - or other issues. Will take a look!

Crashing the party here - I also have the same issue with my NanoPC-T6. Unfortunately USB3 (5 Gbps) is for me still not working with Armbian and the suggested kernel (vendor-6.1.y). I can only get USB2 or slower to work (480Mbps or 12 Mbps). Have tried many devices and if I use a USB2 cable I can get a USB3 device to work but only at USB2 speed. The same device with a USB3 cable will not be detected at all. During booting I get the following error if a USB3 device is connected: usb6-port1: Cannot enable. Maybe the USB cable is bad? The problem is the same with other distros, see e.g.: https://github.com/Joshua-Riek/ubuntu-rockchip/issues/1123 The USB-C port works fine at all speeds. Any suggestions?