Mir enumerates some display modes non-contiguously

[Daniel van Vugt]

Mir enumerates some display modes non-contiguously.

You can see two lots of 1280x720 here:

Output 55: HDMI-A, connected, "EP-HDMI-RX", 1280x720+0+0, enabled, on, 1150mm x 650mm (52.0"), normal, 1.00x, unknown, monitor
    1280x720 60.00*+
    1920x1080 60.00 59.94
    1280x1024 75.02
    1280x720 59.94 50.00
     800x600 60.31
     720x480 60.00 59.94
     640x480 60.00 59.94

This is a projector with a native resolution of 1280x720 but the ability to accept and scale down slightly higher resolutions.

[Michał Sawicz (saviq)]

Syncing task from Mir.