Anyway, thanks, Gareth - I have forwarded your suggestions to Rocket
Repairs, along with that web page I found. One way or another, I hope the
problem can be solved.
Keith Edmunds said: > So the people who have taken on this work - presumably for a fee - don't
> know enough to complete it, and somehow that's your problem to solve?
A good point! Yes, there is a fee, a substantial one, mainly for hardware.
The main board had failed and as I was thinking it was time for an upgrade
anyway (machine was built in 2013) I having something much faster. I also
asked for a SSD with the latest stable Debian/KDE, and they said I should
have a new power supply as well. As for it being my problem - I am using a
laptop with Ubuntu, which is preferable to no Linux at all, but I don't
really like it and the sooner I can have my main machine working again, the
better. So, to that extent and in the interests of getting the job done,
yes, my problem.