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17368

April 28th, 2008 00:00

No Keyboard at a Linux Boot Prompt

Hi all

In case this question is not suitable for this forum, please advise me where should I post it.

I have a Dell Dimension E520 desktop computer. It has an Intel chipset with six USB ports, one of them is for the keyboard and another is for the mouse.

The computer came with Windows XP Professional. Now I need to run a Linux live CD, so I entered the BIOS and changed the boot sequence to boot from CD first.

The first thing the CD displays is a 30-second boot prompt where I should choose my language and other boot options, but my keyboard and my mouse simply don't work. No matter what keys I press, the prompt disapear after 30 seconds and I cannot choose my options.

I entered the BIOS and verified that all of USB-related items under "onboard devices" are turned on. I disabled them, then tried booting again from CD, then turned USB on back at BIOS, them tried again, but the keyboard remained not responding at the boot prompt.

Some people told me to enable something like "USB function for DOS" at the BIOS, but I didn't get to find such option.

If someone tell me what to do to solve this problem, I'll be grateful.

Thanks in advance.

Cleverson

5.8K Posts

April 28th, 2008 01:00

Did you try all of the USB ports?  On my machine, all are active at boot time, but others find only some are active.

 

Peter 

5 Posts

April 28th, 2008 12:00

Hi Peter,
I tried three ports without success. Tonight when I'm back at home I'll try all of the six ports.

Thanks for the tip.

Cleverson

5 Posts

April 28th, 2008 20:00

Hi all,

I've just plugged my USB keyboard on each of the USB ports and run the live CD. Unfortunately the keyboard doesn't work at the boot prompt for any port it's connected.

Any other suggestion is wellcomed.

Thanks for the attention.

Cleverson

5.8K Posts

April 28th, 2008 21:00

What Linux Live are you using?  Have you tried a newer version?

 

Peter 

5 Posts

April 28th, 2008 21:00

Peter wrote:
"Does the keyboard work in the BIOS setup?"

Yes it does. It also works under Windows normally, even when I tap F8 at the system boot to choose a different mode.

Cheers

5.8K Posts

April 28th, 2008 21:00

Does the keyboard work in the BIOS setup?

 

Peter 

5 Posts

April 28th, 2008 22:00

Peter,
I'm trying Ubuntu 8.04, the most recent version. Whenever I let the entire desktop load, my keyboard is recognized normally. However, I need to modify options earlier at the first boot prompt, because I need to choose another language and the accessibility profile, so that all those options become default after the installation.

Thanks for your attention.

Cleverson

5.8K Posts

April 28th, 2008 22:00

That's odd.  I've booted several Linux Live versions (including Ubuntu  but not sure which version) and the keyboard always works on my 9200.

 

The only thing I can think of is that your chipset is new enough that they haven't supported it fully yet.

 

Actually, come to think of it I think I had the same problem with my 9100 (USB only keyboard not working so I couldn't press the buttons when installing Linux).  The next version that came out had fixed the problem.

 

Peter 

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