Hint for all rpi4 Users, after installing from scratch
- and possibly renewing a DVR/TV Konfig from a BackUp (!!)
Append "video=HDMI-A-1:1920x1080M@60D" in the 1st line of cmdline.txt
Prerequisite is the display Configuration at "System/Display/Whitelist"
Working with 'getedid' is not mandatory. Worked for me.
Cheers!
System: RPi4/4Gig in Argon4 Case -TV Tuner:PCTV tripleStick HD 292e