After updating my Jetson TX1 to Ubuntu 16.04, my USB 3.0 (where keyboard is connected) stopped working.
I could see an error “tegra-xhci tegra-xhci: failed to init firmware from filesystem tegra21x_xusb_firmware” during reboot. I could also get to the login page, but since my keyboard no longer works, I could not type in my password.
After a while, another login page would come up that allows onscreen keyboard. When I key in my password, it would just load and go back to the login page.
Is it an Ubuntu update issue such that it overwrote some of the drivers? Is there a step-by-step guide to restore it to factory setting? Or, since Ubuntu has already been updated, is there a way to just update/fix the drivers?