Currently, when you connect an external monitor to an Android phone that supports mirroring, the phone makes the assumption that the external monitor is set up in a landscape orientation. Thus, when the phone is held vertically (in this case, the Galaxy S III) in a portrait orientation, the video output on the display is portrait, but centered with black bars on either side. Of course, when the phone is held horizontally, the output fills the external display.
What I'm looking for is a way to force the Galaxy S III to mirror its screen such that when it is held in a portrait orientation, the output will fill the external display. It would have to work across Android - I'm not talking about a specific app in particular, it needs to work consistently across all apps.
The external display would be mounted vertically, so it's essential that the output from the Galaxy S III while in portrait orientation completely fills and has the correct orientation on the external display.
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Right now, when you connect the Galaxy S III to a TV, it'll display the video in whatever orientation the S3 is currently in. For example, when you hold the phone vertically, it shows up as portrait on the TV (with black spaces on either side), and when the phone is held horizontally, the TV displays landscape video.
Since I have a screen that can rotate, I want to make it so that the video that the Galaxy S III displays will always fill the screen. As in, when the S3 is held vertically, the video it displays fills the whole screen without the black spaces (if you were watching it on a TV, it would appear sideways).
Is this possible? I know that on the iPhone there's an app on Cydia called Landscape TV Out, which always outputs the video in landscape (thus filling the screen). That's what I'm looking for.
If an app is possible but it doesn't exist, I'm willing to pay for one to be made.
To clarify, I've attached two pictures that show what the S3 outputs by default and what I need it to look like in portrait.
I've searched through the GT-i9300 and SGH-i747 source code, but I haven't found anything (maybe I'm not looking for the right thing?)
Any assistance would be greatly appreciated.
Right now, when you connect the Galaxy S III to a TV, it'll display the video in whatever orientation the S3 is currently in. For example, when you hold the phone vertically, it shows up as portrait on the TV (with black spaces on either side), and when the phone is held horizontally, the TV displays landscape video.
Since I have a screen that can rotate, I want to make it so that the video that the Galaxy S III displays will always fill the screen. As in, when the S3 is held vertically, the video it displays fills the whole screen without the black spaces (if you were watching it on a TV, it would appear sideways).
Is this possible? I know that on the iPhone there's an app on Cydia called Landscape TV Out, which always outputs the video in landscape (thus filling the screen). That's what I'm looking for.
If an app is possible but it doesn't exist, I'm willing to pay for one to be made.
To clarify, I've attached two images that demonstrate what the S3 does by default and what I need it to do.
I've searched through the GT-i9300 and SGH-i747 source code, but I haven't found anything (maybe I'm not looking for the right thing?)
Any assistance would be greatly appreciated.
I have a galaxy nexus, and just bought the mhl hdmi adaptor, i've managed to lock the phone on is portrait mode but this rotated the image filling the whole screen. Basically requiring me to turn my head to see properly. Is there any way to rotate the image vertically and have black pillars on the side?
I need this for a presentation of a portrait application.
Hi,
I'm trying to screen cast from a Nexus 4 to a large screen TV (using a PTV3000). I want to put the TV in portrait mode and have the screen case occupy the entire screen, however I don't seem to find a way to accomplish this. When the phone's orientation is vertical (portrait) it assumes the TV is in landscape orientation and the phone screen is displayed small in the middle of the TV with black space on the sides.
After doing some searching it seems that this behavior can only be changed with a custom ROM, however I haven't been able to pinpoint where in the AOSP tree this behavior can be changed. Any suggestions are much appreciated.
Thanks!
Full screen
mariusmuja said:
Hi,
I'm trying to screen cast from a Nexus 4 to a large screen TV (using a PTV3000). I want to put the TV in portrait mode and have the screen case occupy the entire screen, however I don't seem to find a way to accomplish this. When the phone's orientation is vertical (portrait) it assumes the TV is in landscape orientation and the phone screen is displayed small in the middle of the TV with black space on the sides.
After doing some searching it seems that this behavior can only be changed with a custom ROM, however I haven't been able to pinpoint where in the AOSP tree this behavior can be changed. Any suggestions are much appreciated.
Thanks!
Click to expand...
Click to collapse
Did you ever get the full screen to work?
hello everyone,
I'm having a problem with the rotation of my android device and I was hoping if anyone could help me with this.
to give some backstory, I'm trying to create a magic mirror using a MK809 III B Quad-Core android stick, which uses android 4.4.2
the stick is used with a computer monitor (Samsung Syncmaster 205BW), but the monitor will be used vertically. (I'm using a HDMI>DVI-D adapter to connect the two)
because of this, I need to have the screen rotated 90 degrees in portrait mode, and android does allow you to change the rotation of the screen, but it doesn't do it well.
normally the rotation is set to landscape, but you've the option of setting the rotation of the screen, but if I set the rotation to 90 degrees, rather than actually rotating the screen with 90 degrees, it rather pushes a vertical screen in landscape mode, thus cutting off half of the screen.
so far I've tried apps such as Ultimate Rotation Control, but those do not actually rotate the screen, rather they just lock the rotation.
my question now is if anyone can help me with this problem, or tell me if it's even possible to do the thing I'm trying to do.
Any Luck?
I'm having the exact same problem with APQ8084 SOM running android 5.0.2 outputting to HDMI monitor (no accelerometer).
You would think this would be an easy problem to solve.
If I put my Winodws 10 Monitor in portrait mode, it correctly rotates screen 90 degrees end of story.
As Yusunoha mentioned, changing the user rotation in Android (via several methods):
1. using the "settings put system user_rotation 0/1/2/3"
2. modifying PhoneWindowManager.java to always return preferred rotation as "portrait"
3. Setting "persist.panel.orientation=90/270"
Does NOT result in screen rotating 90 degrees.
Instead I get a compressed portrait mode stuck inside my landscape orientation.
It's almost as if the accelerometer (which I don't have) is telling the OS to always orient towards it's perceived gravity.
Any tips rotating the entire Android Display experience (not on a per APK basis) would be wonderful.
Anyone have any ideas?
Yusunoha said:
hello everyone,
I'm having a problem with the rotation of my android device and I was hoping if anyone could help me with this.
to give some backstory, I'm trying to create a magic mirror using a MK809 III B Quad-Core android stick, which uses android 4.4.2
the stick is used with a computer monitor (Samsung Syncmaster 205BW), but the monitor will be used vertically. (I'm using a HDMI>DVI-D adapter to connect the two)
because of this, I need to have the screen rotated 90 degrees in portrait mode, and android does allow you to change the rotation of the screen, but it doesn't do it well.
normally the rotation is set to landscape, but you've the option of setting the rotation of the screen, but if I set the rotation to 90 degrees, rather than actually rotating the screen with 90 degrees, it rather pushes a vertical screen in landscape mode, thus cutting off half of the screen.
so far I've tried apps such as Ultimate Rotation Control, but those do not actually rotate the screen, rather they just lock the rotation.
my question now is if anyone can help me with this problem, or tell me if it's even possible to do the thing I'm trying to do.
Click to expand...
Click to collapse
Found any solution? Even with my rooted device and these settings it won't work. Also using usb c > hdmi > vga.