nvidia: prime render offload #66601

eadwu · 2019-08-14T02:45:35Z

Motivation for this change

Things done

Notify maintainers

cc @

eadwu · 2019-08-14T02:45:43Z

Patched xorg.xorgserver
Loaded modesetting and glamoregl
Added Option "AllowNVIDIAGPUScreens"
Got NVIDIA(G0) in journalctl
Got NVIDIA-G0 provider in xrandr
Loaded nvidia_drm

Device is detected, nvidia-smi output

➜ nvidia-smi
Tue Aug 13 22:44:48 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 435.17       Driver Version: 435.17       CUDA Version: 10.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 105...  Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   59C    P8    N/A /  N/A |     36MiB /  4042MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
+-----------------------------------------------------------------------------+

Still broken

➜ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo
name of display: :0
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  156 (NV-GLX)
  Minor opcode of failed request:  43 ()
  Serial number of failed request:  17
  Current serial number in output stream:  18

eadwu · 2019-08-14T17:46:12Z

Confirmed PRIME synchronization and render offload works fine on my device.

~
➜ glxinfo | rg vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: Intel

~
➜ nvidia-offload glxinfo | rg vendor
server glx vendor string: NVIDIA Corporation
client glx vendor string: NVIDIA Corporation
OpenGL vendor string: NVIDIA Corporation

~
➜ nvidia-smi
Wed Aug 14 13:45:53 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 435.17       Driver Version: 435.17       CUDA Version: 10.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 105...  Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   61C    P3    N/A /  N/A |     37MiB /  4042MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
+-----------------------------------------------------------------------------+

pkgs/servers/x11/xorg/overrides.nix

ghost

Looks like hashes are changing

pkgs/servers/x11/xorg/overrides.nix

nixos/modules/hardware/video/nvidia.nix

ghost · 2019-09-01T08:14:15Z

@eadwu
Can't get it work correctly

Devices

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
01:00.0 3D controller: NVIDIA Corporation GP108M [GeForce MX150] (rev a1)

Configuration

  services.xserver.videoDrivers = [ "modesetting" "nvidia" ];
  hardware.nvidia.prime.offload.enable = true;
  hardware.nvidia.prime.nvidiaBusId = "PCI:1:0:0";
  hardware.nvidia.prime.intelBusId = "PCI:0:2:0";

Interesting why X server is listed here?

$ nvidia-smi
Sun Sep  1 11:02:54 2019       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 435.21       Driver Version: 435.21       CUDA Version: 10.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce MX150       Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   40C    P8    N/A /  N/A |     28MiB /  2002MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0      1136      G   ...gbim0idpi4fn42-xorg-server-1.20.5/bin/X    28MiB |
+-----------------------------------------------------------------------------+

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x1df cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 4 associated providers: 0 name:modesetting
Provider 1: id: 0x1b8 cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:NVIDIA-G0

$ glxinfo | grep vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: Intel Open Source Technology Center

$ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo | grep vendor
server glx vendor string: NVIDIA Corporation
client glx vendor string: NVIDIA Corporation
OpenGL vendor string: NVIDIA Corporation

Don't see any picture with these

$ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxgears
$ __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0 __GLX_VENDOR_LIBRARY_NAME=nvidia glxgears

eadwu · 2019-09-01T19:27:03Z

Not sure why the X process is there. Reproduced the glxgears issue. Not sure why it doesn't show but I'll have a look whenever I have more time.

nixos-discourse · 2019-09-06T17:35:01Z

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/fix-bumblebee-kernel-panic/3933/2

ghost · 2019-09-06T19:12:44Z

Got Vulkan to work eadwu#17

eadwu · 2019-09-06T20:45:11Z

I'm probably only going to have time to look into this later during the weekend, depending on the time I finish university things.

eadwu · 2020-01-26T21:16:12Z

As of the current point, if there aren't any bugs anyone is experiencing, I would say this PR is good to go.

lovesegfault · 2020-01-31T01:28:02Z

Is @baracoder the only missing review?

nixos-discourse · 2020-02-05T17:10:48Z

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review-may-2019/3032/114

patrl · 2020-02-10T21:31:07Z

Is there anything preventing this from being merged? I've been eagerly waiting for this to land in master.

cawilliamson · 2020-03-01T11:24:45Z

I'd love to see this merged! My battery life is suffering every day this isn't merged! :(

romildo

Tested on a Dell G3 3579 (Intel Corporation UHD Graphics 630 / GeForce GTX 1050 Ti Mobile). Looks good to me.

ghost · 2020-04-21T07:19:11Z

Backport to 20.03 anyone?

eadwu · 2020-04-21T18:25:46Z

I was under the thought that new features shouldn't be backported? Though if some people want to be on 20.03 instead of unstable I can open a PR.

ghost · 2020-04-22T13:07:31Z

@eadwu Imho this is 2019 year feature, would be cool to see it on 20.03

eadwu · 2020-04-26T05:36:49Z

I'll open one up later today and see how it goes.

eadwu · 2020-04-27T02:45:53Z

#86094

nvidia: prime render offload (cherry picked from commit 74f5358)

nh2 · 2020-06-15T00:13:44Z

@shyim I think your 2 edits to the Nvidia NixOS wiki article are in error:

https://nixos.wiki/index.php?title=Nvidia&diff=4211&oldid=4189
- This one changes offload.enable = true to sync.enable = true; in the "Offload" section, which achieves the exact opposite effect.
- Also changes prime back to optimus_prime.
https://nixos.wiki/index.php?title=Nvidia&diff=4189&oldid=4161
- This one changes prime back to optimus_prime.

I believe you may have missed the

Currently only in unstable, to be included in 20.09.

mentioned there, and changed it back because those settings don't exist in 20.03 (this sentence also currently unfortunately is present in only 1 of the 2 sections that refer to 20.09-only attributes).

I think we should undo the first change, and modify the second change so that it describes how to enable sync mode for both 20.09 (unstable) and 20.03.

nh2 · 2020-06-15T02:05:34Z

@eadwu Offloading seems to work well for me (I tested on 20.30 with your backport #86094 applied).

But even in offload mode, resume-from-suspend still does not work: #73494 (comment)

nh2 · 2020-06-15T12:26:19Z

I think we should undo the first change, and modify the second change so that it describes how to enable sync mode for both 20.09 (unstable) and 20.03.

I have done this now, and also cleaned up some syntax: https://nixos.wiki/index.php?title=Nvidia&diff=4266&oldid=4211

delan · 2020-10-20T06:34:39Z

Thanks for the hard work on this feature. I’m looking forward to reverse PRIME!

I’ve updated the wiki page to clarify that just like offload mode, only some laptops need modesetting to be added to videoDrivers. For example, doing so on my X1 Extreme (20QV) breaks external monitors and glxinfo, makes picom segfault, and makes firefox and chrome flicker every few seconds.

nh2 · 2021-06-21T00:03:57Z

nixos/modules/hardware/video/nvidia.nix

+      '';
+    };
+
+    hardware.nvidia.prime.sync.enable = mkOption {


@eadwu and others:

Soes prime.sync have anything to do with PRIME Synchronization? (Arch wiki link and NVIDIA link)

Or is it just the old name for "Optimus Prime's sync mode" as described in https://nixos.wiki/wiki/Nvidia#sync_mode ?

If the former, we should probably rename it, or at write this in the docs here and into the NixOS wiki.

Do you know?

Yes prime.sync refers to PRIME Synchronization. It was previously put as optimus_prime https://github.com/NixOS/nixpkgs/pull/66601/files#diff-28ea4da3a9a595f8bd1a37a555c229f998f3a11b0715ebc5842ba266384eba73L55 as why the section has two different versions.

nixos-discourse · 2022-10-17T00:23:52Z

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/laptop-graphics-card-not-detected-by-nixos-generate-config/22450/10

eadwu mentioned this pull request Aug 14, 2019

nvidia_x11_beta: stable -> 435.17 #66597

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eadwu force-pushed the nvidia/prime-render-offload branch 4 times, most recently from db99540 to 3fc022e Compare August 14, 2019 16:43

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eadwu force-pushed the nvidia/prime-render-offload branch 3 times, most recently from d12e300 to 5a80896 Compare August 14, 2019 17:33

eadwu commented Aug 14, 2019

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eadwu force-pushed the nvidia/prime-render-offload branch 2 times, most recently from e03a73c to d81c3a1 Compare August 18, 2019 16:45

eadwu mentioned this pull request Aug 30, 2019

nvidia_x11: 430.40 -> 435.21 #67762

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eadwu force-pushed the nvidia/prime-render-offload branch from 721f3f8 to aa55960 Compare September 1, 2019 19:24

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disassembler modified the milestones: 20.03, 20.09 Feb 5, 2020

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nixos/nvidia: include systemd power management #73530

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nixos/nvidia : added nvidia-persistenced #77054

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Merge pull request NixOS#66601 from eadwu/nvidia/prime-render-offload

61c4341

nvidia: prime render offload (cherry picked from commit 74f5358)

ghost mentioned this pull request Jul 2, 2020

nvidia optimus: display-manager restarts on system upgrades #86123

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Add system dell/xps/15-9500 NixOS/nixos-hardware#178

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20.09 Release notes #95765

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nixos/nvidia: clean up and add dynamic boost #244060

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nvidia: prime render offload #66601

nvidia: prime render offload #66601

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nvidia: prime render offload #66601

nvidia: prime render offload #66601

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