Develop Reference

White screen on Android Emulator, but screenshot shows it working

I'm trying to run a sample Xamarin app and I think my Android emulator is acting up. I've tried enabling Hyper-V, increasing the RAM, telling it to use the host GPU, launching the virtual device from the command line instead of the GUI, and double checking that I have the correct version of the build tools for the version of Android I'm attempting to run.
As a test I've just run the emulator by itself without an app and have discovered that it still shows a white screen even when it is apparently running, somehow. The first image is what I get when I press the Screenshot button. The second image is what I actually see on my desktop. It's been like this for over 10 minutes.
Any advice? I've been Googling like crazy and can't seem to work this out.

Have you tried simply changing the renderer?
Go on the sidebar menu, click the 3 dots>Settings>Advanced and try changing the OpenGL ES Renderer

AVD is online, but doesn't show anything

I am developing an Android app in Android Studio. When I try to run it on an AVD, the AVD screen shows nothing.
The device frame is visible, but there is nothing inside it. The message "waiting for target device to come online" doesn't show up either.
Furthermore, I am unable to edit the graphics in the AVD settings. I have tried running the program both normally and from the AVD manager, but it doesn't work either way.
Other solutions which I have tried (and failed) are removing C:\Windows\System32\Wbem from the PATH environment variable, ending the ADB process in Task Manager, and wiping data from the AVD in AVD manager. Oh, and I even uninstalled and reinstalled Android Studio but it still doesn't work, even for a basic Hello World program. Any help would be greatly appreciated.
https://imgur.com/a/rzMmz3E

I faced this problem due to my ram several times and even after upgrading I had to make several changes. The best solution is to set up a new avd. use Nexus S, and a light image. Start with API 16 and when it works go ahead and create your desired AVD. Keep your eye on the pop up errors AVD shows like HAXM

It may seem silly but have you checked if the emulator is not locked?

Ok, when Emulator is not displaying anything and saying like, waiting for online,
after click on power button then what you have to do is Go to,
AVD Manager then in Actions section click on bottom triangle button and click on "Cold Boot Now" to make working your Emulator.

Android emulator not showing up on desktop screen

I encounter really strange behavior with android emulator. First of all, I am using extended monitor for development. So i code on my laptop and check the app on emulator on second screen. For some reason, I can't see emulator again after disconnect vga cable but I can see emulator is running on taskbar. Somehow, I can't bring emulator out on desktop screen or move to another screen, it just hidden and I don't know how to bring it out. It already happens to me two or three times. Can somebody help me out? What can I do to solve it?
Below is screenshots of my desktop with emulator running.
alt+tab
avd manager

It happens again when I change to another monitor for extended screen. I try what #Zoe suggested press ALT+SPACE to move but it doesn't work because move is grey out.
So my solution, I created two emulators, for two different monitors.
I am not sure why I got downvoted though.

GenyMotion emulator does not go beyond white screen

The genymotion emulator starts from AndroidStudio. It shows its white screen but never goes beyond that. It never comes to the home screen. Tried running the app. does not work. I have tried API 18 emulator. does not work. I have tried changing sdk path, setting android_home. does not work??

Did you checked logs for errors or possible explanation? Do you have both VirtualBox and Genymotion configured properly? It is hard to answer your question more accurately cause you did provide little information.

Going into my BIOS and enabling Intel Virtualization Technology under the CPU Options, and then going into GenyMotion and changing the device's # of virtual processors fix this issue for me.

Some time ago i also faced the same problem ... you can try above all suggestion but what worked for me is :-
Downloading Oracle VM VirtualBox
Here is the link , DOWNLOAD and install it.
http://www.oracle.com/us/technologies/virtualization/virtualbox/overview/index.html

I often have the same problem. If I delete the virtual device and then reinstall it, it usually fixes the problem for me.
To delete it, open the genymotion desktop application
Delete the device that's giving you the white screen - select the device and then click on the trash can icon
After it's deleted, reinstall the device - press add, search for the device, select it and press next twice
The device will be installed again, and it may start properly this time around.

Android Emulator would not load from the AVD manager

Iv been searching on google for this problem but came with no similar problem from anyone else, so there was no answer. I run the emulator from the AVD manager, the loading bar goes almost to the end and then the window disappears and no emulator loads up. Only the AVD manager stares back at me. Anyone knows what could the problem be?
I also have Java ME installed with Java SE, thats for a different platform. Could it be that Java ME is interfering? The emulator works fine on my home computer and there is no Java ME there, but at work it wouldn't load. The whole android SDK folders at work pc and at home pc are both same copy paste from my old home pc that I used to bring to work before.
This problem wasn't solved and eventually did not occur after a system wipe (required for something else)

is it possible that the screen of the emulator itself just turned off, and you need to turn it on?
try pressing F7 to turn it on.
if that doesn't help , try to create a totally new AVD without setting anything there , and run it.
if nothing helps, remove the folder of the sdk manager and re-install it .