Ubuntu – Grub freezes when logitech unifying receiver plugged in

16.10bootgrub2logitech-unifying

When I boot my laptop (HP Spectre x360, late 2016 version, running Ubuntu 16.10) with a Logitech receiver plugged in, grub hangs with the countdown stuck at 10s. Pressing keys on the keyboard doesn't do anything. I have to hard reset the computer and unplug the receiver before it works.

I tried switching the usb to other ports as suggested here, but that didn't work. I also tried changing the boot order in BIOS, enabling/disabling legacy usb, but none of that worked.

Before installing Ubuntu, the laptop booted fine (with the usb plugged in) on Windows 10. This also isn't an issue on my other laptop using the same receiver.

Is there some fix for this issue or alternatively would it be possible to disable usb while grub is loading?

Best Answer

You might try upgrading the firmware in the Logitech unifying dongles. See https://community.logitech.com/s/question/0D531000055gw8YCAQ/logitech-response-to-unifying-receiver-research-findings for instructions and the firmware.

You might also check the USB settings in your BIOS. They may need to be set to USB 2.0, or legacy.

Lastly, you might have to plug the dongle directly into your computer's USB port, instead of a hub (if you're using one).

Update #1:

new link is https://community.logitech.com/s/question/0D531000058b3B7CAI/logitech-response-to-research-findings

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