im running 1920 x 1080. but for some reason my pi400 runs fine on main tv but on new smart tv i just bought it doesnt seem to pick up the signal form the hdmi. A little work around i did was to reinstall piosLegacy (lighter version) and it runs fine . im guessing i have to config raspbian to be picked up by my new smart tv HDMI port??????
anybody else had this issue with their smart tv??? my new tv is 1920 x 1080 - 60 Hz