How do I set the resolution 1440x2560

[djsedaw]

Have a 5.5 1440x2560 lcd display, how do I set this resolution 1440x2560 in recalbox, recalbox seems to take 1440 as the height and 2560 as the width, the display defaults to portrait mode, emulation station will not load at 1440x2560

[tonisowers21]

Recalbox is likely detecting your display in portrait mode by default. To fix this, edit the recalbox.conf file by adding or modifying the line:
global.videomode=custom
Then, edit config.txt and add:
hdmi_cvt=2560 1440 60
hdmi_group=2
hdmi_mode=87
display_rotate=3
This forces the correct resolution and rotates the display. Restart Recalbox to apply the changes.