3 Screen Set up issue

[ddevz]

Here’s how to set the dom0 memory, but increasing dom0 memory can reduce the amount of memory you have for VMs, so I’d recommend waiting till you have a problem before doing it.

How to increase dom0 RAM size?

As @renehoj says, the 4GB is a limit on the memory available to dom0. The remaining memory is allocated to the qubes you run. Qubes actively allocates memory between qubes. In most cases 4GB should be fine in dom0, because it isn’t doing much work. If you do want to change the maximum allocated to dom0, you can do so temporarily, by interrupting the boot and editing the boot parameters: the default parameter is dom0_mem=max:4096M To make the change permanent, edit /etc/default/grub, chan…