[SOLVED] (OVMF BIOS) Display Resolution switchs back to default after power off

[devaux]

Proxmox 8.2.2
pve-edk2-firmware 4.2023.08-4
Windows Server 2022 with UEFI (OVMF q35-8.1) and Default/Default/clipboard=vnc Display switches to native resolution 1280x800 after every power off.

To Reproduce:
1. Installation of Windows Server 2022 is in default resolution 1280x800
2. Rebooting Windows and switching to 1920x1200 in the OVMF settings
3. Booting Windows => 1280x800 (not modifiable)
4. Rebooting Windows => Resolution is 1920x1200
5. Rebooting Windows => Resolution is 1920x1200
...
6. Power off Windows
7. Power on Windows => resolution is back to 1280x800

Solution: You need to add en EFI disk to the VM to store the configuration.

 

[dcsapak]

how does your vm config look like? (qm config ID) ? do you have an efi disk configured?

 

[devaux]

No EFI-Disk configured. smbios set from dmidecode 2.11

agent: 1
bios: ovmf
boot: order=virtio0;ide2;net0
cores: 4
cpu: x86-64-v2-AES
ide2: local:iso/virtio-win-0.1.248.iso,media=cdrom,size=715188K
machine: pc-q35-8.1
memory: 8192
meta: creation-qemu=8.1.5,ctime=1715591100
name: xxx
net0: virtio=BC:24:11:xx:xx:xx,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: win11
scsihw: virtio-scsi-single
smbios1: base64=1,family=xxx=,manufacturer=xxx,product=xxx=,serial=xxx=,sku=xxx==,uuid=xxx,version=xxx
sockets: 1
tags:
vga: clipboard=vnc
virtio0: local-zfs:vm-100-disk-0,cache=writeback,iothread=1,size=52G

 

[dcsapak]

ok that makes sense. if you don't have an efi disk configured, there is no permanent space where the ovmf settings get saved.

create an efi disk and try again please

 

[devaux]

Ah, this was the problem!
Thanks a lot