Unsupported video frequency while installation of PVE 7.2

mattb

New Member
May 27, 2022
2
0
1
Hi,
yesterday i tried to install PVE on a Dell PowerEdge R210.
Therefore i put the ISO on a bootable USB stick. After clicking "Install proxmox" on the first proxmox page the monitor became black and showed "unsupported mode".
The monitor was connected with VGA on the integrated graphic card. So i tried the same with two other monitors. But every monitor showed the same message.
According to the message the frequency of the video signal was 36 Hz.

In an older thread (https://forum.proxmox.com/threads/proxmox-3-4-out-of-range-at-install.21206/) such a problem already was discussed.
At that time the solution was to press the enter button even there was no image shown on the monitor.
I tried the same without any success.

I checked the BIOS settings if there were any configurations concerning the integrated graphic card.
But i only found a configuration to enable/disable it.

Finally i installed PVE 7.1 without any problems.

Does anybody know such a behaviour?


Best regards
mattb
 

khe91

New Member
Jul 24, 2020
13
1
3
Had the same troubles with HP DL380 and PBS 2.2.
Installed then PBS 2.1 and updated to 2.2.
Guess it's a problem of the 5.15 kernel and simplefb.
 

mattb

New Member
May 27, 2022
2
0
1
Had the same troubles with HP DL380 and PBS 2.2.
Installed then PBS 2.1 and updated to 2.2.
Guess it's a problem of the 5.15 kernel and simplefb.
Today i updated PVE to 7.2 without any problems.
In a few weeks I have to setup two other servers. Then I will try to install 7.2 on these other machines again directly.
 

abbynormal

Member
Oct 18, 2018
7
0
6
33
Can confirm that that I ran into this same issue today. Dell R610, installing via bootable ISO USB and connected to display via onboard VGA port. After hitting "install proxmox" in the GUI installer, video output become unsupported by monitor.

Installing via 7.1 and upgrading was an applicable workaround.
 
Last edited:

djraimondi

New Member
Jun 13, 2022
1
0
1
Also can confirm on a Dell R710 and Supermicro Hyve. idrac and IPMI will show the correct monitor view though.
 

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