In ADV7611 user guide (UG-180), page 90, it is specified:
"A loss of TMDS clock or 5 V signal on the HDMI port selected via HDMI_PORT_SELECT [2:0] resets the entire HDMI section except for the
EDID/repeater controller and the audio section."
Really, if disconnetct and then again connect HDMI input signal, all I2C registers of HDMI section (address 0x68) are resets to default state, and to
restore device work, it is necessary to set these registers again. It is very inconvenient for us.
Whether possibly to hold registers setting when TMDS clock is lost?