Raspberry Pi - keyboard problem

50Twuncle

I have finally got my Raspberry Pi 4, up and running Raspbian and have a keyboard problem

In that, whilst it does appear correctly set up (I set the country to UK) - It does not recognise the space bar !!

All of the other keys work correctly - but no spaces.

The keyboard works fine when plugged in to my laptop !

I have tried it in all USB sockets with no change

There is nothing in settings to deal with this

Anyone found a solution to this ?

Also - the damned thing keeps on disconnecting from WiFi

This is so frustrating...

psychic_teabag

Are you using a graphical environment, or does it happen on the tty consoles (ctrl-alt f1 etc) too ?

There's probably a way to monitor the low-level usb comms, to check whether the keyboard is generating activity for the space key or not. But I can't think off-hand what that would be...

ETA: https://wiki.wireshark.org/CaptureSetup/USB  says it can capture things like packets from USB mouse. That in turn uses usbmon:

https://www.kernel.org/doc/Documentation/usb/usbmon.txt

50Twuncle

psychic_teabag said:

Are you using a graphical environment, or does it happen on the tty consoles (ctrl-alt f1 etc) too ?

There's probably a way to monitor the low-level usb comms, to check whether the keyboard is generating activity for the space key or not. But I can't think off-hand what that would be...

Graphical - but the problem emerges when trying the command line interface  !

Neil_Jones

50Twuncle said:

psychic_teabag said:

Are you using a graphical environment, or does it happen on the tty consoles (ctrl-alt f1 etc) too ?

There's probably a way to monitor the low-level usb comms, to check whether the keyboard is generating activity for the space key or not. But I can't think off-hand what that would be...

Graphical - but the problem emerges when trying the command line interface  !

Set up VNC on the Pi:

https://www.raspberrypi.org/documentation/remote-access/vnc/README.md

Connect to the Pi via VNC and see if you can reproduce the issue without the keyboard connected.

If you can replicates this fault without a physical keyboard being connected, then you have an issue with the installation of Raspian, which is easily fixed by just reflashing the SD card.

psychic_teabag

50Twuncle said:

Graphical - but the problem emerges when trying the command line interface  !

Yes, but does it *also* happen on a virtual console ?  Testing that could eliminate the X server from the equation.

debitcardmayhem

50Twuncle said:

I have finally got my Raspberry Pi 4, ..................snipped

Anyone found a solution to this ?

That is dependent on someone else suffering it !

However try researching using xinput and  xev to see wtfmay is happening

You know what real IT guys use oh and xmodmap

50Twuncle

My bluetooth keyboard has solved the problem - that works correctly !

debitcardmayhem

not interested in learning then

Neil_Jones

50Twuncle said:

My bluetooth keyboard has solved the problem - that works correctly !

You're not going to learn anything if you just swap the problematic device for something else.  I'd want to know why the original device (according to your good self) doesn't work on your Pi.  Sort of defeats the whole point of having a Pi IMO.

50Twuncle

I have an audio problem - in that the Pi is plugged into a TV via  HDMI - But there is no audio 
I have edited the boot/config.txt file - by uncommenting hdmi_drive=2 but this makes no difference at all...
I understand that it may be caused by the TV ignoring the fact that the audio is coming in on HDMI - and defaulting to DVI but can't figure out a way round this ......... anyone ?
Other than that (and the extremely noisy fan) - the Pi 4 is a remarkable piece of kit - it boots up very quickly and does everything that I have asked of it !

Neil_Jones

You can change sound output through raspi-config.