How Do I Change the Resolution on My Chromecast?
Even if you start the video on your phone or tablet and send it (i.e.
Instead, the Chromecast automatically adjusts the aspect ratio depending on the resolution of the connected TV.

MX Player and VLC Media Player are two such apps.
On the parameters menu, selectVideo screen orientation.
These should control the Chromecast machine in the same way this setting in VLC does.

go for the Start menu, typeSettings, and go for the parameters app.
SelectDisplayfrom the left navigation field.
Scroll down to the Scale and layout section, and adjust theDisplay resolutionto whatever you prefer.

This will ensure the Chromecast uses the best aspect ratio for your television.
Now you’re ready to cast to your Chromecast machine.
It will use the resolution setting you’ve configured on your PC.
Does Built-In Chromecast Support 4K?
However, it will also work if you have a regular Chromecast connected to a Google TV.
Of course, you’ll also need subscriptions with content providers like Netflix or Hulu which provide 4K programming.
For example, you might adjustdata usage on Huluto optimize streaming from a mobile gadget.
kick off the app > select your profile icon >options>Cellular Usage>Data Saver.
One way to optimize fullscreen casting is to use the Cast feature in the Chrome web internet tool.
Then click theCasticon >Optimize fullscreen videos.