SVANC: díky za tip. Ještě jsem to pohledal na AVS fóru a našel jsem pár zajímavých podnětů. Třeba:
Welcome to the world of HDMI connections...
Many sources will require the HDMI to be up and solid with the source selected before the source is powered up to work correctly.
What I do is try to find the way it works best / most reliably, and always switch / power on in that sequence.
No real good news here for you.
HDMI is problematic switching sources period. It like the display to be on first and selected to the correct HDMI port, then the AVR / switching devices and once again switched to the correct HDMI port, and then finally the source power on with the HDMI output pre-selected before last power off.
to sou radosti.