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mad-hatter
Posts: 419
Joined: Sun Feb 26, 2012 2:58 pm
Location: By the UK seaside

Keyboard problem

Sun Jun 24, 2012 2:20 pm

Hello,

Perhaps there is someone who can help?

Paspberry Pi 'B'
8GB SD card with Debian 19-04-2012
5V 1A power supply
Powered USB Hub

I can't get a PS2 Keyboard to work. (don't have a USB Keyboard)

Pi seems to be working ok, boots ok to the login prompt on a TV using Compostite video (RCA).
At the login prompt no input from the keyboard shown on screen.
Num lock light works on the keyboard. (hardware)

Its the same problem whether I connect directly or through the hub.

Test voltages:-
4.90 volts with mouse and keyboard
4.92 volts with keyboard
4.91 volts with keyboard and num lock led on
4.89 volts during SD card access.

Regards

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Burngate
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Joined: Thu Sep 29, 2011 4:34 pm
Location: Berkshire UK Tralfamadore
Contact: Website

Re: Keyboard problem

Sun Jun 24, 2012 2:42 pm

I was under the impression that where a keyboard (or mouse) comes with a USB-PS2 adaptor, it's clever enough to work out what it's connected to - that adaptor is purely passive.
A PS2 keyboard may not have that intelligence, and so be trying to talk PS2, which the USB port won't understand.

I had a situation where I had to connect a KB/mouse through a KVM-switch without a USB port, to a laptop without PS2 ports. I was able to puchase a dongle that converted two PS2 sockets to USB, and it almost worked. Unfortunately I've no recollection of where I bought it, or what make it was!

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geep999
Posts: 28
Joined: Fri May 18, 2012 10:20 pm
Location: East Herts, UK
Contact: Website

Re: Keyboard problem

Mon Jun 25, 2012 7:25 am

http://www.ebuyer.com/106560-xenta-usb- ... -a-usb2ps2 - £2.45
I'm using this to connect an old PS2 keyobord to my RPi OK.
It also allows a mouse to be connected.
Cheers,
Peter

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mad-hatter
Posts: 419
Joined: Sun Feb 26, 2012 2:58 pm
Location: By the UK seaside

Re: Keyboard problem

Tue Jun 26, 2012 8:28 am

Hi geep999,

I've ordered the adapter you suggested, will have to wait and see.

Many thanks

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mad-hatter
Posts: 419
Joined: Sun Feb 26, 2012 2:58 pm
Location: By the UK seaside

Re: Keyboard problem

Tue Jun 26, 2012 5:17 pm

Hello,

Ok, I treated my self to a USB keyboard. (Tesco, all of £4.97, spare no expense)
Managed to log in, the internet is working.
Now. I've got to setup my partitions to use all the SD card.
I know about GParted and I'm ok with using it.
Should I set up partitions in the linux manner, root - home - swap or
or just expand the main partition to use all the SD card with say a 256mb swap?
Startx not recognised so I assume I've got to update, using apt get.
Any help would be appreciated!

Regards

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geep999
Posts: 28
Joined: Fri May 18, 2012 10:20 pm
Location: East Herts, UK
Contact: Website

Re: Keyboard problem

Tue Jun 26, 2012 6:24 pm

From my notes I see that I started X with

Code: Select all

startlxde
I didn't need to install anything, and I didn't adjust the partitioning.
(Can't test it just now to be sure, as have overwritten that memory card with OpenELEC !).
Cheers,
Peter

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