Originally Posted by bradman
Auto1 upscales anything under 1080p in the player to 1080p, and sends 1080p and 4K directly to the TV. Auto2 sends everything upscaled to 4K.
Is the above true even if there is an AVR between the X800 and the TV...and/or is it only when/if connected to a Sony TV? On my X800 I have Output Video Resolution set to AUTO and 4K Upscaling set to Auto1; when it plays a 1080i/60 BD disc my AVR reports the signal as 4K/60 (this is because my AVR is connected to my Vizio's 4K/60 HDMI input), with the resulting signal being reported by the Vizio as 4K/60; similarly, with the same above X800 settings if my AVR is connected to the Vizio 4K/30 HDMI input, both the AVR and Vizio reports the video signal as 4K/30. Scaling is disabled on my AVR so it is passing the signal through unchanged.
OTOH if I change 4K Upscaling to OFF and leave everything else the same on the Sony (and elsewhere), the reported signal using the same 1080i/60 BD disc is 1080p/60 for both of the Vizio HDMI inputs.
AFAICT the only way I can get the Sony to output a 1080p signal with 4K Upscaling set to Auto1 is if I set Output Video Resolution to Original
--I tested this by playing Star Wars BD disc, and with this setup my AVR reports the signal as 1080p/24; if OTOH I set Resolution to AUTO, 4K Upscaling set to Auto1 and play the same disc, then my AVR reports the signal as 4K/24.
To be fair, I did not test by removing the AVR out of the equation so it might be possible for the Sony to upscale a <1080p signal to 1080p and then subsequently pass it to the TV as 1080p if 4K Upscaling is set to Auto1, but apparently under certain circumstances the Sony will process and send a <1080p signal as 4K even with 4K Upscaling set to Auto1.