When booting into 3.0.0-15 via recovery mode (picked "resume normal boot" in the first dialog), I also get the error from Bug #651104 and Unity comes up in unaccelerated 2D mode. Again, this can be fixed by going back to 3.0.0-14.
When booting into 3.0.0-15 via recovery mode (picked "resume normal boot" in the first dialog), I also get the error from Bug #651104 and Unity comes up in unaccelerated 2D mode. Again, this can be fixed by going back to 3.0.0-14.