Comment 28 for bug 39315

Ok, I've fixed the problem on my computer. I'm not using a laptop, though, so this may not apply to you.

I've got one more thing to try:

Use synaptic to check if you have a package called plptools installed. (It handles file operations with docked Psion PDAs)

Remove it.

Pray.

(Last part is optional)

It worked for me.

I.e. this is at least in some cases a repetition of https://launchpad.net/distros/ubuntu/+source/plptools/+bug/40956

If, however, plptools is not installed, then well... I'm positing that there's a common link between these different issues, as they all raise the same symptoms.

But *if* this class of bugs are the same, then the bug isn't with X or the kernel - because I observed the problem with plptools causing key repeats occuring during installation, before restarting.

For now, I'd recommend that plptools be removed from the repositories ASAP, because it is currently completely broken.