Sony A6100 Help Manual page 258

Only TVs that support "BRAVIA" Sync can provide SYNC MENU operations. For details, refer to the operating
instructions supplied with the TV.
If the product performs unwanted operations in response to the TV remote control when the product is connected to
another manufacturer's TV using an HDMI connection, select MENU →
FOR HDMI] → [Off].
Hint
This product is compatible with the PhotoTV HD standard. If you connect Sony PhotoTV HD-compatible devices using an HDMI
cable (sold separately), the TV is set to the image quality suitable for viewing still images, and a whole new world of photos can
be enjoyed in breathtaking high quality.
You can connect this product to Sony PhotoTV HD-compatible devices with a USB terminal using the USB cable.
The PhotoTV HD allows for a highly-detailed, photo-like expression of subtle textures and colors.
For details, refer to the operating instructions supplied with the compatible TV.
Note
Do not connect this product and another device using the output terminals of both. Doing so may cause a malfunction.
Some devices may not work properly when connected to this product. For example, they may not output video or audio.
Use an HDMI cable with the HDMI logo or a genuine Sony cable.
Use an HDMI cable that is compatible with the HDMI micro terminal of the product and the HDMI jack of the TV.
If images do not appear on the TV screen properly, select MENU →
[2160p/1080p], [1080p] or [1080i] according to the TV to be connected.
During HDMI output, when you switch the movie from 4K to HD image quality or vice-versa, or change the movie to a different
frame rate, the screen may become dark. This is not a malfunction.
When [ Proxy Recording] is set to [On], images cannot be output to an HDMI device while recording a 4K movie.
5-009-879-11(1) Copyright 2019 Sony Corporation
258
(Setup) → [HDMI Settings] → [CTRL
(Setup) → [HDMI Settings] → [HDMI Resolution] →