Hi, I searched but I didn't find any recent posts about this question: Is there a way to get Android TV (Shield) to display the UI at 4K, with properly sized icons? I recently "upgraded" from a 1080p TV to a 4K TV and my UI looks fuzzy since it's upscaling from 1080p. Movies and apps that support 4K work fine, it's just the UI that's upscaled blurry 1080p.
It’s stupid easy to fix this. Open an ADB shell over the network and type:
$ wm size 3840x2160
$ wm density 480
Keep adjusting the density value until you find something you like.
The setting persists across reboots and even a software update so far.
Ui looks fine on my samsung 4k tv. I do think the samsung does a better job upscaling than the shield, so I wish the shield had a native resolution setting for content. But I've never found the ui to look blurry at all.
The only way is to change window size/DPI or something with an ADB command
Do a Google search for that + Android TV/SHIELD and you should find the original guy's post.
Known problem. NVIDIA even acknowledge it.
The Shield's ATV user interface and Icons are not coded for 4K.
Combined with the Shield below average picture hardware upscaling everything that is NOT 4K will is going to look fuzzy when output at 4K vs more modern media players , (eg Apple TV 4K) that have better built in hardware picture upscaling capabilities.