Ubuntu 16.04 下 Android AVD 无法启动的

Ubuntu 16.04 环境下，在Android AVD中创建模拟器可以创建成功，但是启动的时候会报错无法启动，错误信息：

Executing tasks: [:app:assembleDebug]
Emulator: libGL error: unable to load driver: nouveau_dri.so
Emulator: libGL error: driver pointer missing
Emulator: libGL error: failed to load driver: nouveau
Emulator: libGL error: unable to load driver: swrast_dri.so
Emulator: libGL error: failed to load driver: swrast
Emulator: X Error of failed request:  BadValue (integer parameter out of range for operation)
Emulator: Major opcode of failed request:  156 (GLX)
Emulator: Minor opcode of failed request:  24 (X_GLXCreateNewContext)
Emulator: Value in failed request:  0x0
Emulator: Serial number of failed request:  64
Emulator: Current serial number in output stream:  65
Emulator: Process finished with exit code 1

参考Cannot launch emulator on Linux (Ubuntu 15.10)一文中的回复，猜测可能是显卡驱动的问题：

Use "Software" in the Emulated Performance Graphics option, in the AVD settings. Very simple solution.

于是去AVD设置里面，修改如下设置：

将图形设置由默认的Automatic修改为Software模式即可。