Is there a way to modify framebuffer settings on Linux VM on M5
I am trying to run a Linux (Debian 13) VM on UTM on M5 Apple. I only want to run the Linux VM in tty mode and want to be able to modify the framebuffer using fbset -g or equivalent ioctl command to increase the yres_virtual. But I haven't been able to do that and the ioctl, FBIOPUT_VSCREENINFO simply rejects my request. mmap on /dev/fb0 works fine and I am able to write pixels to the screen, just without a double buffer.
I have tried to run with Hardware Acceleration enabled and disabled. I have also tried running it with all virtio-* settings like virtio-ramfb-gl, virtio-gpu-gl-pci. I have also tried toggling retina mode, auto resolution and trying to run with and without spice installed on the VM. Is there a way around this?
u/ChestPainGuy — 1 day ago