Personal computing discussed

Moderators: SecretSquirrel, notfred

 
titan
Grand Gerbil Poohbah
Topic Author
Posts: 3314
Joined: Mon Feb 18, 2002 7:00 pm
Location: Great Smoky Mountains
Contact:

Cannot Control GRUB with Cordless Keyboard

Thu Jan 07, 2010 3:40 pm

So, this morning I found out that I couldn't control GRUB with my cordless keyboard. It's the Logitech LX310 combo. Once Linux loads, everything works as it should.

So, is this a GRUB problem, or a hardware problem?
The best things in life are free.
http://www.gentoo.org
Guy 1: Surely, you will fold with me.
Guy 2: Alright, but don't call me Shirley.
 
SuperSpy
Gold subscriber
Minister of Gerbil Affairs
Posts: 2083
Joined: Thu Sep 12, 2002 9:34 pm
Location: TR Forums

Re: Cannot Control GRUB with Cordless Keyboard

Thu Jan 07, 2010 4:06 pm

I'll be willing to bet your bios doesn't detect the kb, as grub doesn't try to do any hardware detection. If it's one of those usb units where both they kb and the mouse run off the same usb plug that's probably why.
Desktop: i7-4790K @4.8 GHz | 32 GB | XFX Radeon 6950 | Windows 10 x64
Laptop: i7 740QM | 12 GB | Mobility Radeon 5850 | Windows 10 x64
 
wibeasley
Gerbil Elite
Posts: 952
Joined: Sat Mar 29, 2008 3:19 pm
Location: Norman OK

Re: Cannot Control GRUB with Cordless Keyboard

Thu Jan 07, 2010 4:15 pm

Does the keyboard let you enter the BIOS? Are any keyboard errors displayed when POSTing?
 
notfred
Maximum Gerbil
Posts: 4176
Joined: Tue Aug 10, 2004 10:10 am
Location: Ottawa, Canada

Re: Cannot Control GRUB with Cordless Keyboard

Thu Jan 07, 2010 4:25 pm

GRUB runs off the BIOS devices. You'll need to go in to the BIOS (probably with a PS/2 keyboard) and enable "Legacy support for USB devices" or whatever it is called in your BIOS.
 
titan
Grand Gerbil Poohbah
Topic Author
Posts: 3314
Joined: Mon Feb 18, 2002 7:00 pm
Location: Great Smoky Mountains
Contact:

Re: Cannot Control GRUB with Cordless Keyboard

Thu Jan 07, 2010 4:34 pm

notfred wrote:
GRUB runs off the BIOS devices. You'll need to go in to the BIOS (probably with a PS/2 keyboard) and enable "Legacy support for USB devices" or whatever it is called in your BIOS.

That is the solution. I was able to get into the BIOS without using my PS/2 keyboard -- my cordless worked just fine. And the option is called Legacy Support for USB Devices. Made it really easy to fix the problem.

Thanks!
The best things in life are free.
http://www.gentoo.org
Guy 1: Surely, you will fold with me.
Guy 2: Alright, but don't call me Shirley.

Who is online

Users browsing this forum: No registered users and 1 guest