For me beta 4 worked fine in UTM without UEFI boot. When I installed beta 5 without UEFI boot, I could no longer change the screen resolution. The driver shown in screen settings changed. Beta 4 showed it’s using VESA Driver (Generic VESA), beta 5 uses VirtioGpu Driver (Virtio). Creating a VESA file didn’t work for me.
After trying around a bit with creating a UEFI boot partition, booting with UEFI, and different settings in UTM under Display → Emulated Display Card, I found a solution that works.
- Boot from ISO
- Follow these instruction to create a drive with GUID partition table and an UEFI boot partition.
- Install
- Turn off the virtual machine.
- Eject the ISO from the virtual DVD drive.
- Edit the virtual machine and turn off QEMU → Tweaks → UEFI Boot
- Set System → System to Standard PC (Q35 + ICH9, 2009) (alias of pc-q35-7.2)
- Set Display → Emulated Display Card to VESA
- Start virtual machine
-> Preferences → Screen should allow to change display resolution and refresh rate now.- Shut down virtual machine
- Edit the virtual machine
- Set Display → Emulated Display Card to virtio-vga or virtio-vga-gl (GPU Supported)
- Start virtual machine
- -> Preferences → Screen should read VirtioGpu Driver (Virtio) and resolution and refresh rate should be configurable.
Versions and settings:
Haiku version: hrev57937+121 R1/beta5 (x86 64)
UTM version: 4.5.3 (99)
Virtual machine: Standard PC (Q35 + ICH9, 2009) (alias of pc-q35-7.2) (q35), Emulated Display Card virtio-vga
Hardware: Apple MacBook Air M2 15"
Should I report this as a bug?
Edit: It seems the key is to set the Emulated Display Card to VESA at least once. I’m not sure the UEFI boot partition is necessary, however I couldn’t reproduce it without. I still suspect some of the steps above might not be necessary.
I couldn’t get Standard PC (1440FX + PlIX, 1996) (alias of pc-i440fx-7.2) (pc) to work. Q35 has better PCI support AFAIK.