I've just installed
manjaro-kde-18.1.5-191229-linux54 in VirtualBox 6.1 (running on Windows 10).
The LiveDVD boot from ISO was fine, but now that I've installed the system on a VDI hard disk image - Manajro is stuck at 800x600 display resolution:
The VirtualBox interface shows a greyed out list of display resolutions, and it's locked on 800x600.
If I change the resolution in Display Settings inside Mnajaro or using
xrandr -s 640x480- it changes for a fraction of a second and then immediately changes back to 800x600.
Why does this happen? I've just tested this and the LiveDVD boot is also stuck, but on 1024x768.
I've never had such a problem with other Linux distributions. I remeber being able to freely change the display resolution from the guest OS, some distros even talked to VirtualBVox and provided host integration out of the box.
I would settle for just being able to use a rigid 1920x1080 resolution.
I've tried installing virtualbox-guest modules and utilities, rebopoting the VM several times.
I've done another clean install - same story.
Do you have any ideas for fixing this?