ilayna/Single-GPU-passthrough-amd-nvidia

video=efifb:off Kernel Parameter disables TTY

LeeYiKyung opened this issue · 0 comments

In Step number 2 - Editing Grub (https://gitlab.com/risingprismtv/single-gpu-passthrough/-/wikis/2)-Editing-GRUB) It is recommended to add video=efifb:off as Kernel Parameter in grub config.

In my tests it was found that when using this parameter, TTY of my host os stopped working.

Removing video=efifb:off (keeping other values the same intel_iommu=on iommu=pt) fixed the TTY issue and the guest os booting and restoring host os after shutting down guest, all worked fine.

My current host config:

OS: Arch Linux x86_64 
Kernel: 5.16.11-zen1-1-zen 
Uptime: 1 hour, 7 mins 
Packages: 1846 (pacman) 
Shell: zsh 5.8.1 
Resolution: 1920x1080 
DE: Plasma 5.24.2 
WM: KWin 
Theme: Sweet [Plasma], Ant-Dracula-Blue [GTK2/3] 
Icons: [Plasma], candy-icons [GTK2/3] 
Terminal: konsole 
CPU: Intel i5-4460 (4) @ 3.400GHz 
GPU: NVIDIA GeForce GTX 960 
Memory: 4868MiB / 15941MiB