Yodeck supports monitors and TVs with a range of resolutions, including Full HD and HD Ready, up to 3840 × 2160 (4K). The maximum resolution of a Yodeck player on any device is 3840 × 2160 (4K). The service was designed around the primary resolution of 1920 × 1080 (often referred to as “Full HD” or “1080p” in the TV industry).
The content is automatically adapted during playback for any resolution and any monitor up to 4K, even non-widescreen monitors. You can also specify alternative layouts to match different monitors and orientations.
If you want Yodeck to power on and power off your monitor, then there are two options:
Deactivating HDMI Port: This option is supported on the Yodeck Player (Raspberry Pi), but this usually works only on computer monitors (not TV sets)
HDMI-CEC Signaling: This option is supported on the Yodeck Player (Raspberry Pi), but this usually works only on TV sets (not computer monitors) (compatibility chart)
Yodeck uses both methods when powering your monitor on or off. The combination that likely causes trouble is when you are using a PC connected to a TV set. So, make sure your installation does not use this combination, or the power-on/off feature will not work (the TV will stay on, showing its own "No Signal" message).