I found a way
it was long ago, and I am away from the system.
to get you further I will tell you what i remember from my head and you maybe can nail the search before I would have my pi in front of me.
the problem lays in your /boot/config.txt
you have an unwanted overlay in there
the driver way of doing stuff is adding this line which works on jessie
what you need is simple remove this overlay (I DON'T REMMBER THE NAME)
and walla !! you would have stretch with lcd
ok so ONE MORE THING : don't push the RED button !!
seriously... if you config the hdmi/lcd
then expect getting this again every time you LCDSHOW-35 or what ever the command is
if that is your case
go to LCDSHOW dir and locate the files which the driver script copy each mode config file and change it from the source
that way every time you switch the driver will pass the write values to stretch
please don't take this for granted but I think this is the only change that the driver is pushing to this file
so after you validate this just remove this from from the .sh script YOU ARE BETTER OFF with drivers that rewrite and messing with your config !
I will get beck if you don't find it in the weekend
its working great so don't drop the project