SDK Version: 25.0.0 rc1
Host CPU Model: Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz
Device name: open the $avdname.avd/config.ini, find the entry of “hw.device.name”, for example: “hw.device.name=Nexus 5”

Emulator Version (Emulator--> Extended Controls--> Emulator Version): Android 6.0 - Google APIs Intel x86 Atom System Image (revision 10)
Android SDK Tools: 25.0.0 rc1
Host Operating System: Ubuntu 15.10 (64bit)

Steps to Reproduce Bug:
1. Create new emulator as described here: http://tools.android.com/tech-docs/emulator
2. Start emulator via UI

Expected Behavior:

- Emulator starts.

Observed Behavior:

- Emulator does not start. The following error message occurs.

Cannot launch AVD in emulator.
Output:
resize2fs 1.42.13 (17-May-2015)
The filesystem is already 140800 (4k) blocks long. Nothing to do!
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 155 (GLX)
Minor opcode of failed request: 24 (X_GLXCreateNewContext)
Value in failed request: 0x0
Serial number of failed request: 33
Current serial number in output stream: 34
QObject::~QObject: Timers cannot be stopped from another thread