pci_disable_device unknown parameter error Anonymous 9/4/2022 00:30:00 No. 1811 [Open] [Reply] Actions report Translate Thread... Hide Thread Translate... Hide Post GRUB boot commands works when I type pci=disable_acs_redir=pci:12D8:2308 in linux pci module. When I type pci=pci_disable_device=pci:12D8:2308 to disable the hardware, it gives unknown parameter error. what is the reason of this ??