3840 0 2 yes DP-2 GBT M28U 22120B002639 3840 2160 144.000 0 0 2 DP-1 DEL DELL U2720Q 1JSXZ83 3840 2160 59.997 3840 0 2 yes DP-2 GBT M28U 22120B002639 3840 2160 144.000 0 0 2 DP-1 DEL DELL U2720Q 1JSXZ83 3840 2160 59.997 None-1 unknown unknown unknown