Ubuntu 12.04 gnome.
I can't get the resolution higher than 1280-720.
The screen is 22" and has a resolution of 1920-1080.
Ubuntu thinks the screen is a laptop screen. a box pop up whit that.
the cabel is a blue vga.
The resolution has been 1920-1080 for the last year but something happend last week and i don't no what.