to update, I have tried live cd of Manjaro, Tails, Kali, Solus all with same issue. Legacy usb ports pass .5v, BUT no data/ OS recognition

You might try to find a legacy install of Ubuntu (like maybe two years back?)...but I suspect you'll find the issue persistent there too. This just to make sure that it isn't an issue with most recent kernels.

    [deleted] Kali, Solus, Manjaro and TAILS all have same issue when loaded as live OS . USB legacy ports all pass .5v but no data/OS recognition.

      dbarron Thanks, next I am going to boot into BIOS and pop pix of my USB/inputs settings to post. Suspect it is in legacy support/handoff settings

        If I recall, changing the IOMMU controller to enabled in this configuration renders ALL USB ports useless and I must reboot with PS2 KB or mouse, so that's one I don't want to change again

        • [deleted]

        • Post #28
        • Edited

        That seems to be a common issue with that series of boards on Linux.

        Add iommu=soft to boot parameters via this line (run it in a terminal)
        echo 'iommu=soft' | sudo tee /etc/kernel/cmdline

        Then run
        sudo clr-boot-manager update

          [deleted] THANK YOU SO MUCH!!!! I will reboot and see whats up, and get back at you!

            [deleted] before I reboot, when I do should I hit5 up the BIOS and enable IOMMU? I'm guessing yes, but confirm, I don't feel like having to run and get my ps2 keyboard and mouse out again 🙂

                • [deleted]

                • Post #31

                Drewfus It doesn't hurt to try first without

                  Just did, and I'm GOLDEN, all USB ports working as they should! Thanks a million!
                  SOLVED!!!!
                  I tried a dozen other Linux boards, and even Gigabyte themselves, and you got me sorted, I really appreciate it!

                    2 years later

                    Thanks! I have a similar motherboard and ran into the same issue, now I can have all mi usb 2 and usb 3 port running at the same time!