I solved it.

JohnnyWalker2001 wrote:

GrimReminder wrote:I would like to play Grim Fandango in true fullscreen. It's like letterbox, but vertical. Any help?

The game isn't supposed to be played widescreen. It was designed for 4:3 monitors. So having vertical black bars down the side is correct :-/

I know... I just don't want them.

ResidualVM just asks for 640x480 fullscreen. What your OS/video card drivers/monitor decide to do is outside our control. Since you stated that you reinstalled in the first post, maybe check the settings of your video card drivers and/or monitor settings? What I did was install a new AMD driver. Ma...

This is currently not possible with ResidualVM: fullscreen always takes the resolution demanded by the game. We have discussed ways to fix it (https://github.com/residualvm/residualvm/issues/428, for example), but nobody has written the code yet. I just want it stretched. I don't care about the qua...

I would like to play Grim Fandango in true fullscreen. It's like letterbox, but vertical. Any help?