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GRUB hang after single keyboard press

BrianPez
Level 7

‎02-04-2016 05:55 AM - last edited on ‎03-06-2024 02:53 AM by Community Admin

I have a Asus MAXIMUS VIII HERO ATX LGA1151 Motherboard with WIndows 10 installed a M.2 SSD (
Samsung 950 PRO 256GB), Xubuntu 14 LTS (newest one available the second week of January) on a mechanical HD and two more mechanical HDs. Logitech wireless Wave KB/mouse plugged into one of the case's front USB 2 ports. BIOS updated to the latest available the second week of January.

GRUB locks up after a single key press. I have already disable fast boot, tried POST delays between 0 and 10 seconds. Secure boot is off (set to Other OS). Boot order is the BluRay player, the M.2 SSD, and one of the mechanical drives. I have Win10 setup as the default boot by GRUB, so if I don't touch the keyboad, it will boot into Win10. But I need the Xubuntu boot for work.

I was able to key the keyboard to work in GRUB yesterday. But no idea how it worked. Multiple reboots. Multiple times in the BIOS. Even unplugged the power for a couple of minutes. But this morning, none of these worked.

No idea what to try next. Extremely aggravated at this point.

- B
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4 REPLIES 4

Chino
Level 15

‎02-04-2016 07:17 AM

Perhaps the keyboard isn't compatible. Have you tried testing with another?
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BrianPez
Level 7
In response to Chino

‎02-04-2016 07:43 AM

Chino wrote:
Perhaps the keyboard isn't compatible. Have you tried testing with another?


The keyboard is a hold over from my previous PC (which I just replaced). Worked fine with the old system. And the keyboard works in bios and works fine the rare times I actually can get GRUB to work.

- B
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Vinny1001
Level 9
In response to BrianPez

‎02-05-2016 06:20 AM

BrianPez wrote:
The keyboard is a hold over from my previous PC (which I just replaced). Worked fine with the old system. And the keyboard works in bios and works fine the rare times I actually can get GRUB to work.

- B


BrianPez,

I had keyboard/mouse usb detection issues in Windows 7, where one out of every 10 boots my USB devices wouldn't be detected and I would have to restart.

What fixed this was setting XHCI hand off to "enabled" in BIOS in the advance USB section, IIRC. Not sure if this would make a difference for GRUB, but it is a BIOS setting, worth a try!

Let me know if that works! Please report back.
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BrianPez
Level 7
In response to Vinny1001

‎02-11-2016 03:25 PM

Vinny1001 wrote:
BrianPez,

I had keyboard/mouse usb detection issues in Windows 7, where one out of every 10 boots my USB devices wouldn't be detected and I would have to restart.

What fixed this was setting XHCI hand off to "enabled" in BIOS in the advance USB section, IIRC. Not sure if this would make a difference for GRUB, but it is a BIOS setting, worth a try!

Let me know if that works! Please report back.


Didn't fix the problem. I have determined that as long as I use the keyboard slowly in GRUB (say one keypress a second), it works fine. Any faster and it is frozen GRUB.

Not ideal, but I can live with it.
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