Boot from SD and edit screen res on native OS?

[dhosh]

I am not sure about how manjaro does this... we're you using kde or xfce?

my first thought is to jump to a console and load a different window manager and see what happens... my go-tos are fluxbox and sway.

"system wide" sounds like a config file

Yes... That's what I'm looking for. . the display/monitor config file where the change I made in the default is .  I'm booting to Manjaro on SD card, then using terminal to go to the internal drive where the default OS is located.  I assume it's in it's /etc folder.  I thought I had found it, edited the Tex file, saved, then shut down and pulled the SD/Manjaro card and attempted to boot from the internal drive again.  Still no go.  I can log in, and it seems to finish booting , but don't get a desktop screen after... Just a blank screen.

I can't make any changes in the GUI when booted from Manjaro, as it will only effect Manjaro on the SD... Not the internal OS config.  So, I am booting from Manjaro to make a manual change on the default internal drive.  Does that make sense?

Per this post, you need to make your edits to the xrandr config.

Very good!  I'll look at the post tonight.  I did make a change to one of the files in that folder, and it didn't work... But I'll read the list and re-attemot.  I likely missed something!

Thanks!