Proxmox – Screen out of range during installation
Solution: Insert USB/CD installer, when the installation menu appears press “e”. It will display the grub menu settings, In the “Linux” line, add this at the end “nomodeset”. Press CTRL+X or F10 to stall the installation process. Note: If in case you encounter a “cannot run in framebuffer mode”, please follow this fix at https://forum.proxmox.com/threads/generic-solution-when-install-gets-framebuffer-mode-fails.111577/