Android doesn't work on preinstalled oracle vm

i’m a new in majaro
i like your work every thing is just fine
except virtualization
i can’t make it work although it’s very important to me specially android apps

i tried to install android all steps went fine as shown on toutorials and youtube
but when i try to boot after installation just black screen

  • i tried ti install windows on same oracle vm and it went fine

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i tried qemu/kvm
and it worked fine

but still android don’t work on oracle vm