I enable virtuallization in BIOS and then it works !
We definitely need to check if visualization is properly enable before
run it.
Thanks for suggestion from Rex, I install package cpu-checker and run
command kvm-ok can show whether cpu support visualization and if it's
enable in BIOS.
If cpu support it and it's enable in bios, it show result (in utopic)
==========
INFO: /dev/kvm exists
KVM acceleration can be used
==========
If cpu support it and it's NOT enable in bios, it show result (run as non-root
in utopic)
==========
INFO: /dev/kvm does not exist
HINT: sudo modprobe kvm_intel
INFO: For more detailed results, you should run this as root
HINT: sudo /usr/sbin/kvm-ok
==========
If cpu support it and it's NOT enable in bios, it show result (run as root in
utopic)
==========
INFO: /dev/kvm does not exist
HINT: sudo modprobe kvm_intel
INFO: Your CPU supports KVM extensions
INFO: KVM (vmx) is disabled by your BIOS
HINT: Enter your BIOS setup and enable Virtualization Technology (VT),
and then hard poweroff/poweron your system
KVM acceleration can NOT be used
=========
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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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