The number of VirtualBox virtual screens limited to two in contrast to other pc, how to increase the limit of a number of virtual screens?

1 Answer 1


It is dependant on the resolution the host pc uses, the internal graphics memory limit for virtualbox is 128MB and it suffices for about three 4k virtual screens and about 8 full hd 1980x1080 or cca five 2560 x 1440 virtual screen resolutions.

Edit: it automatically increases the memory limit by extending the monitors count, to 256 MB, yet it seems to be sufficing only to the values I mentioned above, https://askubuntu.com/questions/587083/virtualbox-how-to-increase-video-memory

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