Hi FriendlyArm, I have 2 monitors with native resolution of 1600 x 900 and 1366 x 768, how to edit or sample code to change the resolution using hdmi 1600 x 900 and 1366 x 768 in "arch/arm/plat-s5p6818/nanopi3/lcds.c" ?? it is very important for me, and need your help asap .. thanks ..