I just installed linux lite 64bit one more time from scratch to make sure
there is a problem and its not me doing something stupid
immediatelly after the installation i installed smplayer smtube
from the ppa. Note No OS updates have been installed yet !
Go to a console and type smtube to run it, result says "Floating point exception" in the console
I then checked for smplayerhdpi.ini in /.config
its not there.
yes its crashing before it has written smplayerhdpi.ini to /.config
then applied your fix for smplayerhdpi.ini
ok now it works
cant go any further with this now I dunno why you are not getting the same result