Comment # 8 on bug 1206863 from Cameron Seader

(In reply to Stefan Dirsch from comment #2)
> (In reply to Cameron Seader from comment #0)
> > Additional Notes:
> > This setup requires the open nvidia drivers as verified by nvidia and will
> > not work with their proprietary drivers. I have tried this and verified that
> > proprietary does not work because of some signature check from the Dell 5570
> > laptop. I'm not sure how to disable those checks.
> 
> This sounds weird to me. I mean with Secureboot enabled you need to sign
> both driver modules, no matter if it's opensource or proprietary. Things are
> probably
> even more complicated with the opensource driver since it requires you to set
> the driver option 'NVreg_OpenRmEnableUnsupportedGpus=1' on such a desktop
> GPU.
> Seems to be some other signature check.
> 
> I guess you have already read my blog article
> 
>   https://sndirsch.github.io/nvidia/2022/06/07/nvidia-opengpu.html

I have read your blog article, It was very helpful.

Initially months ago I had issues with Dell as noted in this post to nvidia
forums.
https://forums.developer.nvidia.com/t/mantiz-egpu-w-nvidia-rtx3070-works-with-dell-precision-5520-but-not-5570/231060

My motherboard has been replaced 3 times and now finally I have one that allows
the eGPU to work. 

> 
> > System:
> > Dell Precision 5570 - Thunderbolt 4
> > eGPU Mantiz w/ Nvidia RTX 3070, 3 attached displays
> 
> So, this is Intel GPU on the laptop + the eGPU, right? Could you provide
> output
> of "inxi -aG" with the eGPU connected, please?

Getting the output shortly, I have to shut my other machine down.
It might be good to to note that I currently have anotherh machine that is a
Dell 5520 that connects to this same eGPU just fine and everything has been
working for a few years now using Tumbleweed rolling for the last few years
sddm-greeter has no issues with this setup. Here is the inxi -aG output of the
working Dell 5520.

# Working Dell 5520 (No sddm-greeter segfault)
# Note the driver version is 515.76 and using the prorietary install with the
.run file, so the setup is slightly different in that regard.
# inxi -aG
Graphics:
  Device-1: Intel HD Graphics 530 vendor: Dell driver: i915 v: kernel
    arch: Gen-9 process: Intel 14n built: 2015-16 ports: active: eDP-1
    empty: DP-1, DP-2, HDMI-A-1, HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:191b
    class-ID: 0300
  Device-2: NVIDIA GM107GLM [Quadro M1200 Mobile] vendor: Dell
    driver: nvidia v: 515.76 alternate: nouveau,nvidia_drm non-free: 520.xx+
    status: current (as of 2022-10) arch: Maxwell code: GMxxx
    process: TSMC 28nm built: 2014-19 pcie: gen: 1 speed: 2.5 GT/s lanes: 16
    link-max: gen: 3 speed: 8 GT/s bus-ID: 01:00.0 chip-ID: 10de:13b6
    class-ID: 0302
  Device-3: NVIDIA GA104 [GeForce RTX 3070] vendor: eVga.com. driver: nvidia
    v: 515.76 alternate: nouveau,nvidia_drm non-free: 520.xx+
    status: current (as of 2022-10) arch: Ampere code: GAxxx
    process: TSMC n7 (7nm) built: 2020-22 pcie: gen: 1 speed: 2.5 GT/s
    lanes: 4 link-max: gen: 4 speed: 16 GT/s lanes: 16 bus-ID: 0b:00.0
    chip-ID: 10de:2484 class-ID: 0300
  Device-4: Logitech HD Webcam C615 type: USB driver: snd-usb-audio,uvcvideo
    bus-ID: 1-1:2 chip-ID: 046d:082c class-ID: 0e02 serial: F92D2210
  Device-5: Microdia Integrated_Webcam_HD type: USB driver: uvcvideo
    bus-ID: 1-12:4 chip-ID: 0c45:6713 class-ID: 0e02
  Display: x11 server: X.Org v: 21.1.6 with: Xwayland v: 22.1.7
    compositor: kwin_x11 driver: X: loaded: modesetting,nvidia dri: iris
    gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 6840x3240 s-dpi: 137 s-size: 1266x600mm (49.84x23.62")
    s-diag: 1401mm (55.16")
  Monitor-1: DP-0 pos: 3-1 res: 1920x1080 hz: 60 dpi: 93
    size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: N/A
  Monitor-2: DP-2.8 pos: 3-4 res: 1080x1920 hz: 60 dpi: 93
    size: 296x527mm (11.65x20.75") diag: 604mm (23.8") modes: N/A
  Monitor-3: HDMI-0 pos: primary,2-2 res: 3840x2160 hz: 60 dpi: 140
    size: 697x392mm (27.44x15.43") diag: 800mm (31.48") modes: N/A
  Monitor-4: eDP-1-1 pos: 1-3 res: 1920x1080 hz: 60 dpi: 141
    size: 346x194mm (13.62x7.64") diag: 397mm (15.62") modes: N/A
  API: OpenGL v: 4.6.0 NVIDIA 515.76 renderer: NVIDIA GeForce RTX
    3070/PCIe/SSE2 direct render: Yes