Android emulator shows nothing except black screen and adb devices shows “device offline”

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Update 25.07.2018:

The latest Android Studio version does not have this option anymore.
If the problem persists try to switch between the values of the “Emulated Performance” dropdown in the Verify Configuration dialogue (if available) or refer to the Configure Emulator graphics rendering and hardware acceleration.

Update 26.02.2014:

There are two hints in the Configuring Graphics Acceleration chapter from developer.android.com.

Caution: As of SDK Tools Revision 17, the graphics acceleration feature for the emulator is experimental; be alert for incompatibilities and errors when using this feature.

and

Start the AVD Manager and create a new AVD with the Target value of Android 4.0.3 (API Level 15), revision 3 or higher.

So Android 4.0.3 (API Level 15) seems to be the minimum requirement for graphics acceleration.

Original answer

I have had the same issue with the latest Android SDK.

I simply deactivated the checkbox “Use Host GPU” within the settings of the virtual device and it started working again.

The “Use Host GPU” does only work for me with Android 4.2 as “Target”.

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