Hello,

 

I've been using Unraid for about a month now and I have a small question:

Do you need to unplug the HDMI cables from the GPU when booting up the server each time or is there a trick that I can use? If I leave them in I cannot passtrough my GPU because it is already in use by unraid (basic console screen).

 

Thank you!

It should be possible to leave the hdmi plugged in and:

1. bind to vfio the gpu (both audio, video and usb controller parts, if any)

2. if booting unraid with efi, prevent efifb to attach to the gpu (video=efifb:off in syslinux config)

I think I'm botting using UEFI? I changed it to the following:

 

label Unraid OS
  menu default
  kernel /bzimage
  append isolcpus=4-11,16-23 pcie_acs_override=downstream,multifunction initrd=/bzroot,video=efifb:off

 

I think I already binded everything since I needed to do that for passing the card :).

Edited January 6, 20233 yr by Soulplayer

Save diagnostics after plugging hdmi cable, booting unraid and running the vm; from your description you will have a black screen. Stop the vm and save diagnostics.

Attach the zip here.

Edited January 6, 20233 yr by ghost82

I made an error using Syslinux (added video after /bzroot!). The following works perfectly

 

label Unraid OS
  menu default
  kernel /bzimage
  append isolcpus=4-11,16-23 pcie_acs_override=downstream,multifunction video=efifb:off initrd=/bzroot

 

thank you for the tip!

so is it solved?

perfect I didn't notice the comma, which as you understood must not be there

 

yes! I marked it as solved (thank you:)).

Edited January 9, 20233 yr by Soulplayer