HOW TO: Fix No-Screen Frame-Only emulator in Android Studio? 2019
How to fix the no-screen frame-only emulator problem in android studio?
You need to update your 'display adaptors' drivers.
To update the drivers,
1. right-click windows logo and click 'device manager'
2. expand the 'Display adaptors'
3. right-click on the first device and click 'Update driver'
4. click 'Search automatically...'
5. repeat for the other device.
After updating the drivers, the emulator should work (it did for me).
Hope it helps.