Your Vizio TV could be changing input by itself because of a malfunctioning HDMI 2 port or a pending TV reset. Malfunctioning HDMI 2 port; Pending TV reset . Turn the HDMI 2 port OFF on your television and turn it ON again. If the port still doesn’t work, the HDMI ports are likely to be malfunctioning and in need of replacement.
Rysa_105 said: On sony tv's, setting hdmi port to enhanced means 18 gbps hdmi compatibility. With standard hdmi, the hdmi data pipeline does not support 18 gbps bandwidth. So any resolution/refresh rate/chroma combination that needs the higher bandwidth upto 18 gbps will only work with the hdmi port set to enhanced.
2. VGA is analog, HDMI is digital. When you were connecting your computer to your TV via a VGA cable different hardware in your TV was processing the signal. It is likely that your TV simply cannot process a digital signal of the resolution you are looking for.
1. Reset Your TV by Power Cycling. Although this might seem a basic step, power cycling your TV is often the best way to fix your Sharp TV not turning on. Resetting your TV will clear out any issues with non-permanent memory and reset your main board without losing your personal settings.
Just open Settings > Picture. Navigate to Expert Settings and enable HDR+ Mode. Turn On Input Signal Plus. Open Settings > General and select External Device Manager on your Samsung Smart TV. Now, click on Input Signal Plus and enable it for the HDMI port to which your gaming console is connected.
TV and Video Source Settings: Check your TV and video source settings, as they may be set to "stereo." I've run into this problem with game consoles and streaming sticks. Cable Choice: Be sure to use an HDMI 2.1 cable for full HDMI ARC and eARC support. If surround sound is a priority, skip the optical cable, as it lacks the bandwidth of HDMI. U8jihQ.
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    • sharp tv hdmi settings