2

When I have my wireless mouse dongle plugged in (Razor Deathadder v2 pro) grub doesn't detect my WIRED USB keyboard. The only way I can get it to work is by unplugging my dongle, and rebooting. When the dongle isn't in, the keyboard works just fine in grub.

The strange issue is that this doesn't ALWAYS happen. It works fine every now and then, but the majority of the time it doesn't work.

Does anyone know what might be causing this?

Fresh install of 22.04.

Improve this question
2
  • Can you plugin both devices and run lsusb?
    – Pilot6
    Feb 17, 2023 at 20:54
  • Both devices are detected when booting into Ubuntu. Grub is my main issue. I dual boot so it gets annoying when trying to switch and the kb doesn't work.
    – JustPie
    Feb 18, 2023 at 21:18

2 Answers 2

Reset to default
1

I had a similar problem that I resolved by changing a bios setting. One of the fast boot bios settings on my motherboard prevented the system from scanning the USB devices on power up. That prevented the o/s from seeing the USB attached dongle. I disable the fast boot option and that resolved my issue.

Improve this answer
3
  • I'll give that a try and see what happens.
    – JustPie
    Feb 18, 2023 at 21:19
  • Unfortunately this didn't work. I disabled fast boot and still run into the issue.
    – JustPie
    Feb 20, 2023 at 2:23
  • This was it for me, even though the bios had usb full usb support enabled under fast boot settings
    – Farhan.K
    Oct 24, 2023 at 22:38
0

I have literally the same problem with Razer Deathadder V2 Hyperspeed. When USB dongle is plugged in I cannot use laptop keyboard. On first key press the countdown disappears and I cannot select anything and I must reset the laptop. Even pressing enter as the first key does not boot Ubuntu 22.04 LTS. It does not occur every time, but like 90% of boots.

Fast boot does not have any impact on the problem - it still persists.

Improve this answer
2
  • I found that this issue is happening when the dongle is plugged into anything that is considered a USB HUB. I removed my dongle from my hub and plugged it directly into my motherboard and I no longer have issues.
    – JustPie
    Jun 28, 2023 at 17:35
  • Thanks for the tip. But I'm connecting the dongle to the laptop so that means that laptop manufacturer did some hack and it is not a direct connect to the motherboard.
    – Piotr Glazar
    Jul 10, 2023 at 12:35

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .