SOLVED 12th gen iGPU passthrough a possibility?

[Andybluejay]

I've found a lot of threads about iGPU passthrough and not a whole lot of success stories. I have an i5-12600 and I'd love to pass through the iGPU to Plex if possible.
I'm running TrueNAS-SCALE-22.12.0, with an i5-12600 on a Supermicro X13SAE-F. I can see this iGPU and IPMI GPU listed:

but unfortunately I cannot seem to isolate it from the host:

I know I'm not the only one with this issue. I'm not understanding why it cannot be isolated from the host when the host doesn't need a GPU in the first place. Has anyone been successful with a workaround? Do we know if this is planning to be fixed?

 

[morganL]

In the Bluefin release notes it says:

TrueNAS SCALE Bluefin includes Linux Kernel 5.15 which can enable Alderlake GPU acceleration by using the following boot loader tunable and rebooting:

midclt call system.advanced.update '{"kernel_extra_options": "i915.force_probe=4690" }'

NOTE: 4690 can be replaced with your specific Alderlake GPU version.

 

[Andybluejay]

Is there a particular way to enter that? I've tried entering it at the shell, but the GPU device still cannot be isolated from host after rebooting.

and I did confirm that 4690 is correct for my Alderlake GPU, or at least thats what shows up in the drop down on the Isolated GPU PCI Id's menu.

 

[Davvo]

Is there a particular way to enter that? I've tried entering it at the shell, but the GPU device still cannot be isolated from host after rebooting. View attachment 61536
and I did confirm that 4690 is correct for my Alderlake GPU, or at least thats what shows up in the drop down on the Isolated GPU PCI Id's menu.

If it's a tunable it should be accessible by the GUI.
Edit: here it is.

Advanced Settings Screen

Provides information on the System Settings > Advanced screen, widgets, and configuration screen settings.

www.truenas.com

 

[Andybluejay]

If it's a tunable it should be accessible by the GUI.
Edit: here it is.

Advanced Settings Screen

Provides information on the System Settings > Advanced screen, widgets, and configuration screen settings.

www.truenas.com

I appreciate it, so in this case would the variable be 'i915.force_probe' and the value '4960'? Sorry if thats a dumb question I'm pretty new to all this.

 

[Davvo]

I appreciate it, so in this case would the variable be 'i915.force_probe' and the value '4960'? Sorry if thats a dumb question I'm pretty new to all this.

I'm not too sure myself, wait for morgan's reply.

 

[morganL]

I'm not too sure myself, wait for morgan's reply.

Not sure myself. Haven't done it...

It looks like the CLI command would work.

Then you need to configure the GPU: https://www.truenas.com/docs/scale/.../advancedsettingsscreen/#isolated-gpu-devices

If anyone else has done something similar, please chime in.

 

[Andybluejay]

I still cannot isolate it but it does show up in the docker GPU configuration now which is all I needed. Plex HW transcoding is up and running!

 

[morganL]

I still cannot isolate it but it does show up in the docker GPU configuration now which is all I needed. Plex HW transcoding is up and running!

Isolation is needed for VMs.... so that's why it was not needed. Glad its solved.

 

[Daisuke]

Plex HW transcoding is up and running!

Any reason why you are not using the @truecharts Kubernetes application, instead of your docker image? Much easier to maintain.

I GPU transcode also, see Plex Transcoding section into this thread.

 

[bitbit]

Home

A documentation site built with Astro

kois.cc

 

[o1982]

Does this work for Raptorlake 13th Gen also? It's technically the same igpu right?

 

[hrayrwannis]

Same issue with i7 13700K - can't get the iGPU to show up for the apps. I've tried the force probe https://kois.cc/storage/truenas/gpu/ as well to no avail the dev/dri is still empty.

Is there a way to manually add these drivers perhaps?

 

[omeganot]

I used to have the iGPU on my E-2356G showing up in app container configuration, but now it's gone with the 22.12.02 update. I have more problems with apps, namely that I can't run them anymore and am seeing:

Code:

Missing 'hugetlb, cpu, cpuset' cgroup controller(s) which are required for apps to function

but that's a whole different problem I'm trying to work out in other threads.

While running

Code:

dmesg | grep i915

I get the following:

Code:

[   14.932899] i915 0000:00:02.0: [drm] VT-d active for gfx access
[   14.934761] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
[   14.935352] i915 0000:00:02.0: Direct firmware load for i915/rkl_dmc_ver2_03.bin failed with error -2
[   14.935356] i915 0000:00:02.0: [drm] Failed to load DMC firmware i915/rkl_dmc_ver2_03.bin. Disabling runtime power management.
[   14.935357] i915 0000:00:02.0: [drm] DMC firmware homepage: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915
[   15.606283] i915 0000:00:02.0: [drm] failed to retrieve link info, disabling eDP
[   15.778936] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 1
[   15.782349] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[   15.782586] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes

and here's the result of /dev/dri:

Code:

ls -alh /dev/dri  
total 0
drwxr-xr-x  3 root root        120 Apr 24 09:02 .
drwxr-xr-x 21 root root       4.1K Apr 24 09:03 ..
drwxr-xr-x  2 root root        100 Apr 24 09:02 by-path
crw-rw----  1 root video  226,   0 Apr 24 09:02 card0
crw-rw----  1 root video  226,   1 Apr 24 09:02 card1
crw-rw----  1 root render 226, 128 Apr 24 09:02 renderD128

Anyone run into something similar that is preventing the loading of the iGPU? Maybe that's related to my apps issue as well, but there seems to be something else going on here.

 

[Mosq1to]

I used to have the iGPU on my E-2356G showing up in app container configuration, but now it's gone with the 22.12.02 update. I have more problems with apps, namely that I can't run them anymore and am seeing:

Code:

Missing 'hugetlb, cpu, cpuset' cgroup controller(s) which are required for apps to function

but that's a whole different problem I'm trying to work out in other threads.

While running

Code:

dmesg | grep i915

I get the following:

Code:

[   14.932899] i915 0000:00:02.0: [drm] VT-d active for gfx access
[   14.934761] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
[   14.935352] i915 0000:00:02.0: Direct firmware load for i915/rkl_dmc_ver2_03.bin failed with error -2
[   14.935356] i915 0000:00:02.0: [drm] Failed to load DMC firmware i915/rkl_dmc_ver2_03.bin. Disabling runtime power management.
[   14.935357] i915 0000:00:02.0: [drm] DMC firmware homepage: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915
[   15.606283] i915 0000:00:02.0: [drm] failed to retrieve link info, disabling eDP
[   15.778936] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 1
[   15.782349] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[   15.782586] i915 0000:00:02.0: [drm] Cannot find any crtc or sizes

and here's the result of /dev/dri:

Code:

ls -alh /dev/dri 
total 0
drwxr-xr-x  3 root root        120 Apr 24 09:02 .
drwxr-xr-x 21 root root       4.1K Apr 24 09:03 ..
drwxr-xr-x  2 root root        100 Apr 24 09:02 by-path
crw-rw----  1 root video  226,   0 Apr 24 09:02 card0
crw-rw----  1 root video  226,   1 Apr 24 09:02 card1
crw-rw----  1 root render 226, 128 Apr 24 09:02 renderD128

Anyone run into something similar that is preventing the loading of the iGPU? Maybe that's related to my apps issue as well, but there seems to be something else going on here.

did you find a solution? having the same issue with same CPU.

 

[omeganot]

did you find a solution? having the same issue with same CPU.

Not yet. Haven't had a ton of time to poke at it, but I'm digging around again now.

 

[omeganot]

Today's release of 22.12.3 brought the iGPU and apps back around for me. I was successfully able to bring Plex back up as an app and provide it the iGPU for the E-2356G.

 

[Mosq1to]

Today's release of 22.12.3 brought the iGPU and apps back around for me. I was successfully able to bring Plex back up as an app and provide it the iGPU for the E-2356G.

Noice, did you manage to get it to trancode though the iGPU?
dose the consol say that its using the igpu?

im in away atm but will look into this when i get home.

just before i left i managed to fix the DMC issue by downloading https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
and just transferring the missing file to where the kernal is located /var/....../i915

but i still have issue when trying to transcode in plex, Cannot load libcuda.so.1

best regards

 

[omeganot]

Yeah, it is transcoding through the iGPU.

The CPU graph rises a few percent to handle the audio transcode (damn EAC) but that's it. Video is fully through the iGPU.

As a note, I followed the steps at https://www.truenas.com/community/t...ick-sync-on-newer-intel-cpus-in-scale.100046/ to help check that I had things configured properly for this CPU, plus I made sure "Enable GPU Support" is checked in the Applications Kubernetes Settings and that I selected an iGPU in the Plex app config (I just picked the last one, 5, to know it wasn't going to be the default for any other apps).

 

[Mosq1to]

Nice!

lol could it be so easy that i have forgot to ""Enable GPU Support" is checked in the Applications Kubernetes Settings"
il check and get back to you :)

thanks for response!