[SOLVED] Proxmox can't reboot without monitor plugged in (tried everything I found)

lolozen

New Member
Sep 22, 2024
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Hi,

a few weeks ago I bought a mini PC to act as my proxmox virtual environment host.

I bought a: NiPoGi AM06 Pro Mini PC

it has a Ryzen 7 5800U , 16Gb RAM ddr4 , 512Gb storage ssd nvme and a АMD Radeon Graphics 2000 MHz

the thing is that without a proper monitor, I can't get it to boot.

I did some research and tried a few things:


- I modified my grub setting to enable "nomodeset" , add "console" and uncomment a "GFXMODE"
- I tried to downgrade the kernel from 6.8.12-1-pve to 6.5.13-6-pve
- I bought a HDMI dummy plug, but each time I plug it in my pve won't boot and crash errors:
BUG : pve kernel: ext4-fs warning(device-dm8): ext4_multi_mount_protect:328: mmp interval 42 higher than expected, please wait
is the last log I get (the dummy plug works on my main computer and I ran a mem test on my mini pc that passed successfully)

I honestly don't know what to do anymore. It's really annoying having to plug a monitor in each time I want to restart the machine. Does anyone knows or have any idea on how to fix this please ?
Code:
root@pve:~# pveversion -v
proxmox-ve: 8.2.0 (running kernel: 6.5.13-6-pve)
pve-manager: 8.2.5 (running version: 8.2.5/12c0a59769080547)
proxmox-kernel-helper: 8.1.0
proxmox-kernel-6.8: 6.8.12-2
proxmox-kernel-6.8.12-2-pve-signed: 6.8.12-2
proxmox-kernel-6.8.12-1-pve-signed: 6.8.12-1
proxmox-kernel-6.8.4-2-pve-signed: 6.8.4-2
proxmox-kernel-6.5.13-6-pve: 6.5.13-6
amd64-microcode: 3.20240820.1~deb12u1
ceph-fuse: 17.2.7-pve3
corosync: 3.1.7-pve3
criu: 3.17.1-2
glusterfs-client: 10.3-5
ifupdown2: 3.2.0-1+pmx9
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-4
libknet1: 1.28-pve1
libproxmox-acme-perl: 1.5.1
libproxmox-backup-qemu0: 1.4.1
libproxmox-rs-perl: 0.3.4
libpve-access-control: 8.1.4
libpve-apiclient-perl: 3.3.2
libpve-cluster-api-perl: 8.0.7
libpve-cluster-perl: 8.0.7
libpve-common-perl: 8.2.2
libpve-guest-common-perl: 5.1.4
libpve-http-server-perl: 5.1.0
libpve-network-perl: 0.9.8
libpve-rs-perl: 0.8.10
libpve-storage-perl: 8.2.4
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 6.0.0-1
lxcfs: 6.0.0-pve2
novnc-pve: 1.4.0-4
proxmox-backup-client: 3.2.7-1
proxmox-backup-file-restore: 3.2.7-1
proxmox-firewall: 0.5.0
proxmox-kernel-helper: 8.1.0
proxmox-mail-forward: 0.2.3
proxmox-mini-journalreader: 1.4.0
proxmox-offline-mirror-helper: 0.6.7
proxmox-widget-toolkit: 4.2.3
pve-cluster: 8.0.7
pve-container: 5.2.0
pve-docs: 8.2.3
pve-edk2-firmware: 4.2023.08-4
pve-esxi-import-tools: 0.7.2
pve-firewall: 5.0.7
pve-firmware: 3.13-2
pve-ha-manager: 4.0.5
pve-i18n: 3.2.3
pve-qemu-kvm: 9.0.2-3
pve-xtermjs: 5.3.0-3
qemu-server: 8.2.4
smartmontools: 7.3-pve1
spiceterm: 3.3.0
swtpm: 0.8.0+pve1
vncterm: 1.8.0
zfsutils-linux: 2.2.6-pve1
 
If your bios don't support headless mode just a keyboard alone connected will do also.
 
My bios indeed doesn't seem to support headless mode, strangely I don't know why the dummy HDMI doesn't work, I try to find a Bluetooth dongle for a keyboard and plug it in see if it works

Update: so a keyboard works, tho I don't have any spare keyboard to just lay plugged in my mini pc, I might try with another OS to see if it's really a hardware issue, when I bought this mini PC I saw other people that used it as a proxmox host
 
Last edited:
Okay so issue seems to be coming from this specific machine... I'll have to get a refund and get a new one, thank you for your help
 
Okay so issue seems to be coming from this specific machine... I'll have to get a refund and get a new one, thank you for your help
Was the problem that specific unit or that specific model? i'm thinking of buying one to use proxmox and don't have a monitor around