Failed to reduce screen resolution on Lumia 950 phone by code

Hello,

Within my game, I am trying to reduce the native screen resolution of my Lumia 950 (Windows Phone 10) from 2560x1440 to 1920x1080 (Unity 5.3.1) with the following code:

if (Application.platform == RuntimePlatform.WSAPlayerARM) {
Screen.SetResolution (1920, 1080, true);
}

The code results in strange display behavior (one of the button Icons fills the entire screen) and then the screen resolution jumps back to native 2560x1440.
I am compiling with Windows Store/Phone 8.1.

Any comments on what I am doing wrong? Many thanks in advance and sorry for my English.

Michael

 

Hi Tomas1856,

thanks, your tip worked. I implemented "QualitySettings.antiAliasing = 2" before "Screen.SetResolution (1920, 1080, true)" and now Screen Resolution is properly set to 1920x1080.

Many thanks

Michael

 

Hi guys
We have the same "issue" but compiling with Windows Store / Universal 10 mode on Lumia 950...
The given workaround dont work (we tried from Unity 5.3.1f to 5.3.2p4), any tricks/chanve to change resolution on Universal 10 Unity games ? ?

 

Thanks for your quick reply !
Based on you post here ...

...we tried on the last patch release 5.3.2p4 (but I'm installing the 5.3.2p2 to test it just in case ^^)

more news soon

 

Here the code :

Code (CSharp):

1.  
2. Debug.LogError("[Screen] Current Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height );
3. int height = Screen.currentResolution.height;
4. if ( height > 1080){ // Lumia 950
5.   QualitySettings.antiAliasing = 0;
6.   Screen.SetResolution(1920, 1080, true);
7.   Debug.LogError("[Screen] Reset Resolution to 1920x1080");
8. } else if (height > 720) { // 1080p devices...
9.   QualitySettings.antiAliasing = 0;
10.   Screen.SetResolution(1280, 720, true);
11.   Debug.LogError("[Screen] Reset Resolution to 1280x720");
12. }else{ // Lumia 650, 550
13.   QualitySettings.antiAliasing = 0;
14.   Screen.SetResolution(1024, 576, true);
15.   Debug.LogError("[Screen] Reset Resolution to 1024x576");
16. }
17. Debug.LogError("[Screen] Final Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height );
18.  

We tried to switch Lumia 550's resolution from 720p to 576p; and Lumia 950's resolution from "2.5k" to 1080p, with Unity 5.3.2f1 & Unity 5.3.2p4 but without success...

Lumia 950 output :

I'm finishing to install 5.3.2p2 to try ...

 

So, exactly the same issue with 5.3.2p2...

 

I tried the frame after, the second after ... same result ...

 

Thanks
Do you have an idea of the timeframe for the fix on mobile ?

 

Got it !
To "force" the resolution we need to call again SetResolution after a short delay...

Here is a working exemple :

Code (CSharp):

1.  
2. public class ResolutionChanger : MonoBehaviour
3. {
4.     void Start()
5.     {
6.         Debug.Log("!initial Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height);
7.         StartCoroutine(changeRes(1280,720));
8.     }
9.  
10.     IEnumerator changeRes(int w,int h)
11.     {
12.         yield return new WaitForSeconds(1.0f);
13.         Debug.Log("Current Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height);
14.         Screen.SetResolution(w, h, true);
15.         yield return new WaitForSeconds(0.1f);
16.         Screen.SetResolution(w, h, true);
17.         Debug.Log("New Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height);
18.     }
19.  
20.     void OnGUI()
21.     {
22.         int w = Screen.width, h = Screen.height;
23.         GUIStyle style = new GUIStyle();
24.  
25.         Rect rect = new Rect(0, 0, w, h * 2 / 100);
26.         style.alignment = TextAnchor.UpperLeft;
27.         style.fontSize = h * 2 / 100;
28.         style.normal.textColor = Color.white;
29.         string text = "Resolution : " + Screen.currentResolution.width + "x" + Screen.currentResolution.height ;
30.         GUI.Label(rect, text, style);
31.     }
32. }

Repro case + workaround sent to the debug team.

 

Ouch... this trick work only in the repro/new project... not in our game one ... Don't know why...
The only difference is this output line "Application is already in fullscreen, won't resize window, only changing resolution to 1280 x 720." when working (after the second SetResolution call)

 

Tried it but no changes ...

Edit : I found the way to change the resolution also in the game project (using the previous ResolutionChanger.cs script). I had to clean all files / folders except Asset and ProjectSettings; reopen the project (so Unity reimport all files), reswitch to Windows Store - Universal 10 build.
So, it seems like some old/broken code was still present in some temporaty folder...

 

Yes Tomas, we "solved" the problem cleaning the game project (removing all except Asset & ProjectSettings folder) and using the ResolutionChanger.cs script trick (double delayed call of SetResolution function).
So for now is a "quite acceptable" workaround.
QA said they are able to reproduce this bug and have sent it for resolution a the dev team.

 

What's the state of this issue?
Could it be that the bug is still valid for Universal Windows 8.1 phone projects?
Using Unity 5.3.7

 

Something like that at least, yes.
Win 10 phones work fine it seems, Win 8.1 phones trouble me.
I will try to see if I can make a repro project.