Audio and Video Call don't unlock the screen

[facb69]

I've been trying to use Riot for almost a year but I'm about to give up.
I have a self hosted Matrix server but also tried Matrix.org and I'm stuck on the same problem: the audio or video calls don't unlock the screen! Sometimes not even a single message shows up as push notification.
Tried official Android 10 and Android 9 and Lineage OS 7.1.2 and unless the screen is unlock all I get is the audio ring so I must unlock the phone to answer. Also tried F-Droid and Google Play versions combined or not.
Using my home server (which is poor on hardware) and with unlocked screen I have an almost instant response so the problem is not the Matrix server.
I like the whole idea and that's why I have installed it on my server but it's impossible to get other people to use it when it doesn't do what others like WhatsApp do.
I searched for an answer on this issues area but I cannot find a definitive one. And all information is outdated. I tried the community on Matrix too but got nothing, not even the courtesy of an answer.
Can somebody, please, point me to the right directions?
Thanks for the attention.

[microchipster]

Possibly related: #3446

[EsmaeeilMoradi]

1-Add this permission in the manifest:

<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

2-Handel and receive ACTION_MANAGE_OVERLAY_PERMISSION permission in activity class via Alert Dialog:
(I Handeled in Vector home activity)

          if (!Settings.canDrawOverlays(this)) {
                new AlertDialog.Builder(VectorHomeActivity.this)
                        .setMessage(Html.fromHtml(getString(R.string.saba_receiving_a_permission_desc), Html.FROM_HTML_MODE_COMPACT))
                        .setPositiveButton(R.string.saba_receiving_a_permission, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                if (!Settings.canDrawOverlays(VectorHomeActivity.this)) {
                                    Intent intentTest = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
                                    startActivityForResult(intentTest, 0);
                                }
                            }
                        })
                        .setNegativeButton("", null)
                        .setCancelable(false)
                        .show();
            }

3-Add in VectorCallActivity

        Window winManager = getWindow();
        winManager.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
        winManager.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
        winManager.addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

[immanuelfodor]

This is really needed. Do I understand it correctly that the above comment holds the solution to the wake up issue? Why not open a pull request to merge it soon?