Issue with Proxmox VM Console - Black Screen & Error Message

Issue with Proxmox VM Console - Black Screen & Error Message

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Gianluca Vaccaro

Hello Support Team,

I am writing to report a technical issue regarding the Proxmox interface. When attempting to open the console for a specific Virtual Machine, the connection fails. The console window initially opens to a black screen, followed shortly by an error message.

I have attached a screenshot of the exact error for your reference.

Could you please investigate this issue and let me know how to resolve it?

Thank you for your assistance,
error.png

error.png

All Comments (1)

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Alexis Geller Peiro

Hi Gianluca,

Thank you for reporting this and for including the screenshot.

To investigate the connection failure to your VM's console, could you please share the following:

  • The version of Remote Desktop Manager you're currently running (Help → About)
  • The type of workspace you're using (Devolutions Server / DVLS, SQL, or Devolutions Cloud)
  • The version of Proxmox VE on the host, if known


It would also help to know: are you able to open the console for this same VM directly through the Proxmox web interface (or another VNC client), without going through RDM? This will help us determine whether the issue is specific to RDM or related to the Proxmox host/network itself.

Additionally, could you please check the Application logs around the time you attempted to open the console, and paste any relevant entries into a Notepad file for us? For reference: https://docs.devolutions.net/rdm/ribbon-menu-bar/help/application-logs.md

We look forward to your feedback.

Best regards,

Alexis Geller Peiro