Hello, I'm playing Ultima Underworld 1 & 2 and I'm wondering if anyone has figured out the ideal graphical settings for having the most screen area used in Dosbox when your monitor is a 1080p television. Thanks.

Can you do that in the dosbox interface that GOG gives you? Or do you have to edit the configuration file directly?

My preferred settings (they work well either on my laptop's 1366x768 screen or on my Sony Full HD 40" TV-set):

fullresolution=0x0
output=opengl

aspect=true
scaler=normal2x

Just don't stretch it for God's sake!

Directly, GOG's config program doesn't seem to have an option to edit the fullscreen resolution, just the windowed res.

While you've got the config file open, KingofGnG's suggestions are good:

aspect=true will make sure the game is 4:3 even if it used a non-square pixel mode.

As for the scaler setting, it's a pretty subjective thing, but given that your screen is 1080 pixels tall I'd go for one of the 3x scalers (e.g. normal3x, advmame3x, hq3x).