Android Vitrual Device Manager from Andriod studio does not understand that my processor supports vitalization (Intel Core i5), and that the system also has everything you need, and for some reason does not allow the device emulator to start.
Virtualization is precisely enabled in BIOS.
KVM installed according to the instructions - https://help.ubuntu.com/community/KVM/Installation . The kvm-ok command provides what is required (KVM can by used).
I checked all the instructions in google. Added your user to groups: $ sudo adduser your_user_name kvm $ sudo adduser your_user_name libvirtd 
But. The device list says "HAXM requires a Genuine Intel processor". See screen. Although I know that in Linux, instead of HAXM, you need a KVM that is installed and configured. What's wrong? 
kvm-okchecks only the compatibility of theCPU, but not the correctness of theKVMinstallation. To do this, your instruction advises to usevirsh list --all- Pioneer