i have a problem after i managed a clean installation of Ubuntu 20.04 LTS on an empty HDD (i have dual boot since on the other disk i have windows) i observed that my usb 2.0 ports aren't working. I searched everywhere to find a solution and the only one i found that makes a difference is to enable IOMMU at bios settings. But then all of a sudden my usb 3.0 ports are the ones that get disabled. Any solution?
Motherboard: GIGABYTE-970A-DS3P
