I gave up on getting the old laptop to stop randomly turning its screen off and not turning it back on again. I am now copying stupid amounts of photos etc over from old machine (Asus n550jk) to the new one (Acer Nitro 5 NH.Q3REK.008). It glows red! Also it was surprisingly cheap.
It will be nice to have working USB ports and an 'n' and spacebar that doesn't randomly fly off and get stuck under the sofa. Once I have everything copied, anyway...