Recently I switched my HTPC from windows to kubuntu. It's connected to a 720p TV via HDMI from Asus geforce GT 520. I installed NVidia drivers, and they do seem to work rather well.

However, as soon as I did that I noticed all the font sizes were tiny enough to be utterly unreadable. I changed the sizes from application appearance in system settings to size 26 and forced font dpi to 40. []

I was, and am, very pleased with the result.
However, KDE partition manager still has those tiny fonts, and is almost unusable, even with KMag []. I haven't yet gone through every application, but I assume there are a few more with the same problem.

I'm rather lost as to what even could be causing this, thus I'd like to ask if anyone here had an idea?