I remember setting multiple modelines and cycling through them with ctrl + alt + plus/minus
Then the monitor would freak out and start buzzing on the high resolution modeline that didn't quite work so you would switch away and go back to tweaking it.
It took me a while to get my first monitor to run at 1280x1024 @72Hz
I later had some Mitsubishi 21" monitors and got them to run at 2048x1536 @75Hz
My old desk still has a permanent bend to it from those two because they were so heavy.
Then the monitor would freak out and start buzzing on the high resolution modeline that didn't quite work so you would switch away and go back to tweaking it.
It took me a while to get my first monitor to run at 1280x1024 @72Hz
I later had some Mitsubishi 21" monitors and got them to run at 2048x1536 @75Hz
My old desk still has a permanent bend to it from those two because they were so heavy.