https://sites.google.com/site/cubiedocs/documents/armbian-vga-output-mode
[disp_init]
disp_init_enable = 1
disp_mode = 0
screen0_output_type = 4
screen0_output_mode = 2
screen1_output_type = 2
screen1_output_mode = 14
fb0_width = 1360
fb0_height = 768
fb0_framebuffer_num = 2
fb0_format = 10
fb0_pixel_sequence = 0
fb0_scaler_mode_enable = 1
fb1_framebuffer_num = 2
fb1_format = 10
fb1_pixel_sequence = 0
fb1_scaler_mode_enable = 1
verbosity=1
console=both
disp_mode=1280x720p60
disp_mem_reserves=on
rootdev=UUID=00000000-0000-0000-0000-000000000000
rootfstype=ext4
Reference
Cubian VGA output: https://github.com/cubieplayer/Cubian/wiki/VGA-output
Fex Guide: http://linux-sunxi.org/Fex_Guide#.5Bdisp_init.5D
Sunxi-tools: http://linux-sunxi.org/Sunxi-tools#Building