Get YouTube to go full screen when connected over HDMI? - Samsung Galaxy S9 Questions & Answers

I want to watch YouTube videos from my 18.5:9 phone on my 16:9 (non-smart) TV. When I connect the phone with a standard USB-C to HDMI adapter, it mirrors the screen on the external display, but it zooms out so that the 18.5:9 aspect ratio is preserved, with black bars on the sides (portrait) or top and bottom (landscape) filling the empty space. When I watch a video in full screen on YouTube, the screen is still mirrored in the 18.5:9 ratio. When it's in landscape, that means there are black bars on the sides on the phone's display (because 18.5 is "wider" than 16), but on the external display, it means there are black bars on ALL sides!
Is there a way to either...
Make YouTube zoom onto the video so that it actually fills the 16:9 display properly...
or...
Make the S9 (presumably S8 is the same) output its display as 16:9 natively? EDIT: to clarify, can you force it to crop down to 16:9 on the actual internal display, so that when it mirrors to the external display, they're both in 16:9?
As one possible example of this working properly, VLC will automatically go into some sort of screen-casting mode when connected via HDMI, where the phone's built-in display only shows playback controls, while the external display shows the video, properly fit to the external display with no apparent cropping or zooming. (when the source video is 16:9, at least!)

Tried using YouTube Vanced instead of the original YT app?
https://forum.xda-developers.com/android/apps-games/app-youtube-vanced-edition-t3758757

Didn't work, unfortunately.

There are settings to ignore screen resolution in Vanced

Those just seem to allow the phone to output higher resolutions than the internal display is capable of; it doesn't actually change the aspect ratio of the output display...

Related

Video app rotation

I encoded a video that came in 1920x800 down to 1267x528 (the closest to 1280x720 for that ratio) and it won't play in landscape. It tries to play it in portrait and is absurdly small. Videos on youtube rotate fine to fill up the screen, but when I turn the phone sideways it stays in portrait mode.
Is there a setting somewhere I have to hit to allow the 'Videos' app to rotate? Do any other video players other than "Videos" and "Youtube" take up the entire screen, including the buttons?

why video apps do not utilize the entire screen?

Slingplayer, Xfinity, MX player etc...aside from Google Play movies, I have not found a video app that uses the full 6" screen. Slingplayer and Xfinity leave what looks to me to be over 1/4" of the screen on the right side blacked out. Is this universal or an issue with my phone? Is there a setting somewhere I haven't found to force full screen for video?
I am completely stock 8.1 at the moment...I don't think I should have to do something via adb like forcing immersive mode for something like being able to use my whole screen to watch video???
thanks for any and all input
I think this has to do with the apps themselves being updated to support the aspect ratio. As of now some apps support it and others dont, in time they will update.
It's likely because our screen is 1440 pixels x 2880 pixels (an 18:9 ratio). Most video conform to the regular 16:9 ratio. Because our screen is slightly wider than traditional, there are basically three options:
- Leave empty space as unused on the left/right side of the screen, which is default for most video apps that would otherwise be full screen. The video remains properly proportioned.
- Stretch the video to fill the screen. This would cause slight distortion on the video.
- Zoom the video to fill the screen. This causes you to lose a tiny bit on the top/bottom of the image, and might result in a tiny tiny bit of loss-of-clarity. But the video remains properly proportioned and unskewed. You can zoom in on YouTube videos with a pinch gesture to see this in action.
I'm sure that some more apps will likely adapt similarly to YouTube, but it may take some time.

Screen extension YT

I noticed today the drawback of expanding the YT image to the entire screen (gesture with two fingers).Well, horizontally widening results in vertical truncation
it is perfectly visible on such material, where at the bottom or top of the movie there are data, subtitles, eg here: https://youtu.be/M9sd3spUo_g
regards
q.
qriozum said:
I noticed today the drawback of expanding the YT image to the entire screen (gesture with two fingers).Well, horizontally widening results in vertical truncation
it is perfectly visible on such material, where at the bottom or top of the movie there are data, subtitles, eg here:
regards
q.
Click to expand...
Click to collapse
That’s normal on all non 16:9 devices playing 16:9 material.
The video gets just zoomed in. If you would align it to fill up the screen without loosing anything the video gets distorted.
Only a 18:9 video will work without cutting anything of and showing no black borders.

Switch Android Docked - Very Pixelated Image

Hi, I installed SwitchRoot and docked it. But the Picture on my FullHD TV is very pixelated. Is it because the switch runs 720p in portable mode?
My TV reports the Resolution as 1920x1080 60hz.
Is there a way to force it display a sharp 1920x1080 image without pixelation when docked ?
uigger said:
Hi, I installed SwitchRoot and docked it. But the Picture on my FullHD TV is very pixelated. Is it because the switch runs 720p in portable mode?
My TV reports the Resolution as 1920x1080 60hz.
Is there a way to force it display a sharp 1920x1080 image without pixelation when docked ?
Click to expand...
Click to collapse
I have the same issue, but you are clearly in the wrong device section.

Question Watch videos in th entire screen

As we all know this phone has an aspect ratio of 2.22:1 and we can't watch in this full resolution because most videos and ganes are in 16:9 ratio and some in 2:1 which leaves some black bars on the ends. What I would like to ask is if there is anyway we could fully utilise the display and watch or play in the entire screen resolution or in the 2.22:1 ratio. Edit viewing ratio manually in youtube netflix etc.. and some games
Well what I do sometimes is expand it manually on my N10+.
With different aspect ratios sometimes you need to adapt. At least use a browser that keeps the end bars black. The Samsung browser is my primary vid viewer.

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