Hi, Michal

The PES mainstream team identified that it has a higher probability
happend, if the user runing the emulator on a virtualzation disabled
machine.

The user does not even get the panel / welcome screen / greeter, the
whole "screen" of the emulator is blank. It comes back *sometimes* if
restart unity8 by

  $ kill -9 $(pidof unity8) $(pidof unity8-dash)

Here is my theory - When disabled virtualzation in emulator, the system
will be running very slow, and it's possible incrase odds for a race
condition of the unity8/unity8-dash.

Reference -
The developer need to have VT-X/AMD-V hardware for the emulator, and it need to 
be enabled from BIOS to have better
emulator performance.

The developer can check with the following command -
  # check if the hardware support virtualzation
  $ grep -e svm -e vmx /proc/cpuinfo
  # check if it's enabled from BIOS
  $ sudo apt-get install cpu-checker && kvm-ok

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https://bugs.launchpad.net/bugs/1396919

Title:
  unity8 display blank in emulator, host utopic, rtm-14.09 instance.

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