acpi fpdt: duplicate resume performance record found

I've managed to fix the console, now i got following message in kernel log rolling till eternity:
acpi fpdt: duplicate resume performance record found

I've managed to work around with boot option acpi=off, however that is not entirely desirable.

I've tried with 5.13.19-6-pve and 5.15.39-4-pve kernels, both behave the same way.

Any ideas how to fix this?

Thanks,
rdvn
 
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I had a similar issue. I installed Proxmox over Debian, I had to do my install this way since my device only has a serial console. After installing PVE, I could not boot the Proxmox kernel or I got the "acpi fpdt" error you quoted. I could still boot using the 5.10 Debian kernel fine. For me, the fix was rolling my BIOS back to the original release BIOS for my device. For reference, I'm using a VMWare Edge 640 that has been flashed to the Dell VEP14x5 BIOS.
 
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I had a similar issue. I installed Proxmox over Debian, I had to do my install this way since my device only has a serial console. After installing PVE, I could not boot the Proxmox kernel or I got the "acpi fpdt" error you quoted. I could still boot using the 5.10 Debian kernel fine. For me, the fix was rolling my BIOS back to the original release BIOS for my device. For reference, I'm using a VMWare Edge 640 that has been flashed to the Dell VEP14x5 BIOS.
Which Bios you installed? and what procedure have you used? Could help with that?
I have 2 units that I'm trying to install but the bios have the watchdog protection.. And I heard to remove that the solution is to change the bios.
 
@dmsmartins: I downgraded the BIOS of my Edge 680 (VEP 1485) to the first release (3.48.0.9-11). After that, Promox Kernel 5.15 booted fine and did the rest of the installation from Debian 11 without any other issues.

Download the BIOS here.
Download the instructions here.

I downgraded the FW from DIAG-OS, but it is possible any other Linux Distro will do. Cannot tell for sure, sorry.