I need to get extreme under scan on display.
Something burped in my Mac a few hours ago and I need to unhide the side edges of the Finder.
That's addressed in another thread.
What I'm hoping for is access to more powerful under-scanning than the locked into 'Dumb' mode Display preferences is now. [Panasonic flatscreen TV-only as of now] All allowed resolutions hide their side regions as is.
I can improve it with the allowed under-scan slider, but not enough to see critical side regions of the Finder.
If I could shrink the Finder enough to fill the visible screen with out any hidden sides of it, I would be okay.
HOW can I access more advanced display settings for this Mac Mini ??? [ they were there when I set up this Mac a couple of years ago for this TV, two OS's ago ]
Mac mini, OS X Yosemite (10.10.5), Using Panasonic 39" TV at 1080