Actually, per https://github.com/raspberrypi/firmware/issues/1202 can you try this instead: hdmi_group=2 hdmi_cvt=1366 768 60 hdmi_mode=87 For Motorola Atrix Lapdock users -- these changes are still what's needed for the 2020-02-13 release of Raspbian Buster. One of the easier ways to the add these...