No video signal from PVE console

[Dzonzi]

Hi, i have installed PVE on miniPC Firebat T8 plus and it was working for several months without any issues. One day, suddenly power supply failed. i bought a new one and when i started miniPC i got some error about read-only mode to not to lose more memory or something similar. Do you know this?
After PVE shows me screen with login I'm losing HDMi signal but not completely. i see only black screen but not that black like when there is no signal at all.
Also i cannot connect to this mini pc via ethernet. it shows me ip addres: 192.168.0.2:8006 but i cannot connect. Maybe year ago i changed but i dont remember now.
What can i do now?
From Bios i have signal all the time.

 

[leesteken]

One day, suddenly power supply failed. i bought a new one and when i started miniPC i got some error about read-only mode to not to lose more memory or something similar. Do you know this?

Sounds like drive damage causing file(system) corruption which can cause strange behavior. Did you try a fresh reinstall and restoring VM/CTs from backups? Or maybe replace the drive and reinstall Proxmox?

 

[Dzonzi]

but the backup is on that drive ;/ Any chance to restore it from drive?

 

[tomservo]

but the backup is on that drive ;/ Any chance to restore it from drive?

You could try to catch the boot at the grub menu, and add "nomodeset" to the kernel command line. That should tell it not to change the video mode (resolution), so hopefully your screen won't go blank during the boot anymore. Hopefully that will let you do more troubleshooting about what is read-only and why.