I have tried the method below, and so far has not worked. anyone have suggestions?
"Here is my updated fix
First enable iommu in the uefi by restarting your computer and pressing delete to enter the uefi
plug your usb mouse, keyboard and thumbdrive in usb 2 ports.
save and exit the uefi
Then In Ubuntu:
press Ctrl+Alt+T to open up a terminal
run the following command: sudo gedit /etc/default/grub
Only edit the empty quotes in this line to read: GRUB_CMDLINE_LINUX="iommu=soft"
save changes to grub and exit gedit and the terminal
Open up a new terminal with ctrl+alt+t
run the following command: sudo update-grub
then exit the terminal using this command: exit
Restart your computer press delete to get back into the uefi
Disable iommu in bios, load optimized defaults and restart.
usb, 2.0 usb 3.0 and networking all work now in Ubuntu, and disabling iommu in bios may also help improve your boot times.
If the above post helps anyone I am happy. "
*UPDATE i found the solution in this video https://www.youtube.com/watch?v=_ky20Ywo3Eo
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