[SOLVED] nvidia HW accelerated hybrid graphics

zdolar · 03-31-2022, 02:35 AM

Hi!

I installed Slackware64-15-current on machine with nVidia and Intel graphic card (hybrid).

Threads here are outdated, suggestions cause X not to start.

Questions:
Do VLC & ffmpeg from Alien or default ffmpeg support nVidia HW acceleration?
Proper xorg.conf file?
How to enable switching graphic card, or use nVidia with GPU intensive apps (VLC, ffmpeg) else iGPU?
Do not point to The Latest NVIDIA Linux Driver Release as i've already followed suggestions there with unsatisfactory results with SBo compiled/installed NVIDIA-Linux-x86_64-510.60.02

Is maybe better to disable iGPU in BIOS and use only nVidia?

Daedra · 03-31-2022, 09:18 AM

I have a similiar setup on my laptop, except mine has a AMD graphics and a discrete NVIDIA graphics card. You basically have 3 options.

1) Disable intel GPU in bios and just use NVIDIA card (by far the easiest solution).
2) configure the nvidia driver to just use the nvidia card and bypass the intel GPU (this is what I do since I can't disabled in bios).
3) Use Nvidia Prime render offload.

Prime render off load is where you use the integrated intel card unless you speciify the program to use the NVIDIA card. This is the best solution if you really need to watch your battery life. Once it is setup if you wanted to use the NVIDIA card for a program you would run it like this...

Code:

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia <program name>

It is not terribly difficult to setup but it can be a bit tedious to get running.

See the debian and arch wiki's. The information is still relevant to Slackware.
https://wiki.debian.org/NVIDIA%20Optimus
https://wiki.archlinux.org/title/NVIDIA_Optimus

zdolar · 03-31-2022, 09:56 AM

Thank you Daedra.

I tested Prime render off load. Is works but VNC can not render video (HEVC).
I will test ffmpeg if it works that way.

zdolar · 03-31-2022, 02:16 PM

packages installed:
libva-2.14.0-x86_64-1
libva-compat32-2.14.0-x86_64-1compat32
libva-utils-2.14.0-x86_64-1
libva-vdpau-driver-0.7.4-x86_64-3alien
libvdpau-1.5-x86_64-1
libvdpau-compat32-1.5-x86_64-1compat32
libvdpau-va-gl-0.4.2-x86_64-1_SBo

Code:

env  |grep VDP
VDPAU_DRIVER=va_gl
VDPAU_LOG=0

SBo repo compiled:
nvidia-driver-510.60.02_multilib-x86_64-1_SBo
nvidia-kernel-510.60.02_5.16.17-x86_64-1_SBo

/etc/X11/xorg.conf.d/21-LAR-nvidia-screens.conf

Checked VLC-3.0.16 from Alien - cli on terminal show only Intel accelerated video, nVidia never with any settings (HW acceleration an Video output auto or vdpau)

Checked ffmpeg from Alien (and Pat's is the same):

Quote:

ffmpeg -hwaccels
vdpau

Quote:

ffmpegffmpeg -hide_banner -encoders |grep h26
V..... h261 H.261
V..... h263 H.263 / H.263-1996
V..... h263_v4l2m2m V4L2 mem2mem H.263 encoder wrapper (codec h263)
V.S... h263p H.263+ / H.263-1998 / H.263 version 2
V..... libx264 libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (codec h264)
V..... libx264rgb libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB (codec h264)
V..... h264_qsv H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration) (codec h264)
V..... h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264)
V....D h264_vaapi H.264/AVC (VAAPI) (codec h264)

Quote:

ffmpeg -hide_banner -encoders |grep hevc
V..... libx265 libx265 H.265 / HEVC (codec hevc)
V..... hevc_qsv HEVC (Intel Quick Sync Video acceleration) (codec hevc)
V..... hevc_v4l2m2m V4L2 mem2mem HEVC encoder wrapper (codec hevc)
V....D hevc_vaapi H.265/HEVC (VAAPI) (codec hevc)

From above ffmpeg outputs it is clear that hwaccel vdpau is compiled but no nVidia encoders are available, only Intels qsv.
__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia in front of vlc do not help.

Do anybody have VLC and ffmpeg with full nVidia hardware acceleration support?

At above state my nVidia cart is useless!

Daedra · 03-31-2022, 07:45 PM

can you post the output of these two commands..

Code:

glxinfo | grep OpenGL

Code:

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo | grep OpenGL

biker_rat · 03-31-2022, 09:17 PM

export __VK_LAYER_NV_optimus=NVIDIA_only
export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
#export __GLX_VENDOR_LIBRARY_NAME=nvidia
I use the above in .profile with no xorg.conf
If I want opengl to be by nvidia, I preface the launch command with the commented out line. X won't launch if the commented out line is uncommented. Wayland will some times work with it uncommented.

Tonus · 04-01-2022, 06:42 AM

I use primusrun with my laptop, provided by bumblebee. If it could be relevent I will find you the slackbuilds links.

Edit : there https://docs.slackware.com/howtos:ha...nvidia_optimus

zdolar · 04-01-2022, 01:13 PM

Code:

glxinfglxinfo | grep OpenGL
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)

Code:

__NV_P__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo | grep OpenGL
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro P2000/PCIe/SSE2

I already checked the above at first when searching for a solution.
nVidia proprietary driver is installed correctly and work as expected.

In my previous post:

Quote:

Checked VLC-3.0.16 from Alien - cli on terminal show only Intel accelerated video, nVidia never with any settings (HW acceleration an Video output auto or vdpau)
Checked ffmpeg from Alien (and Pat's is the same):
From above ffmpeg outputs it is clear that hwaccel vdpau is compiled but no nVidia encoders are available, only Intels qsv.

So the problem is that nVidia support is not compiled in Aliens VLC and ffmpeg (also Pats from Slackware).

Can anybody confirm that?

Did someone successfully compiled VLC and ffmpeg (adjusted Aliens slackbuild scripts)?

zdolar · 04-14-2022, 08:52 AM

I have successfully compiled ffmpeg-5 with nVidia support.
The crucial was installing nv-codec-headers first.

So now I can use h264_nvenc and hevc_nvenc and -hwaccel cuda for transcoding.
Huge improvement in speed.

For video play VLC uses compiled in intel iGPU, which is enough. CPU usage never reach high load even playing hevc UHD 10 bit.

kjhambrick · 04-14-2022, 10:36 AM

Quote:

Originally Posted by zdolar

I have successfully compiled ffmpeg-5 with nVidia support.
The crucial was installing nv-codec-headers first.

So now I can use h264_nvenc and hevc_nvenc and -hwaccel cuda for transcoding.
Huge improvement in speed.

For video play VLC uses compiled in intel iGPU, which is enough. CPU usage never reach high load even playing hevc UHD 10 bit.

Nice !

What version of Slackware do you run ?

Thanks

-- kjh

FTIO · 04-14-2022, 09:41 PM

I'd like very much to know how to compile the ffmpeg5 also! I tried and installed it, but for some reason the system didn't take to it and I had to re-install the one that came with the 'current' I'd installed. Reason I want to compile the ffmpeg5, is because I use several network cameras on the property for security and wildlife watching and hevc encoding would be really, really nice to have to save space on my hard drive.

zdolar · 04-15-2022, 02:37 AM

Hi!

I'm running Slackware64-current.
Recently I've got a machine with nVidia P2000.
I need it for video transcoding.
As Slackware + Alien VLC & ffmpeg do not have compiled in nVidia support, I had to do it on my own.
For transcoding I need ffmpeg, for video play VLC restricted from Alien is fast enough with Intel iGPU.
So I compiled only ffmpeg.

WARNING: Installing ffmpeg-5 compiled by me RUIN ALL Slackware video applications! None of them are working.

As Alien compiled VLC (smartly) with all libraries included, VLC works. It works even without ffmpeg installed on a system.
I am satisfied with above, as ffmpeg & VLC are the only video apps I use on Slackware.
For Slackware video apps to work again, they have to be recompiled/reinstalled to grab installed ffmpeg-5.
I will not do that.

The other possibility is to compile/install ffmpeg-5 with other (custom) destination folder.
Then both ffmpeg-4 and ffmpeg-5 can then coexist on the system. That is only my idea, I do not know if this is possible.
If I need that, I will investigate it.

From my previous post:

Code:

The crucial was installing nv-codec-headers first.

This must be done before ffmpeg configure/compile, as ffmpeg configure script autodetect nVidia header files and enable nVidia options to be compiled.

For ffmpeg-5 to compile, I adapted original Slackwares slackbuild.
I chanced version number and allow nonfree libs to compile.
Also nVidia options must be enabled.

If interested, I can add slackbuild script - at the evening (I live in Slovenia/EU).

andrew.46 · 04-17-2022, 05:01 AM

Quote:

Originally Posted by zdolar

[...]WARNING: Installing ffmpeg-5 compiled by me RUIN ALL Slackware video applications! None of them are working.
[...]
The other possibility is to compile/install ffmpeg-5 with other (custom) destination folder.
Then both ffmpeg-4 and ffmpeg-5 can then coexist on the system. That is only my idea, I do not know if this is possible.

I have a very quick and dirty method to leave the system FFmpeg binaries alone and also install and run the latest git FFmpeg. I install the 3 FFmpeg binaries to $HOME/bin after setting the $PATH to allow this preference:

Code:

andrew@ilium~$ echo $PATH
/home/andrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:etc..etc

The script is completely unpolished and rough and ready:

Code:

#!/bin/sh

set -e

rm -rfv /tmp/ffmpeg

cd /tmp

git clone --depth 1 https://git.ffmpeg.org/ffmpeg.git ffmpeg

cd ffmpeg

./configure \
  --prefix="$HOME/bin" \
  --bindir="$HOME/bin" \
  --disable-doc \
  --enable-static \
  --disable-shared \
  --enable-libaom \
  --enable-openssl \
  --enable-libvorbis \
  --enable-libmp3lame \
  --enable-libx264 \
  --enable-libx265 \
  --enable-libvpx \
  --enable-libopus \
  --enable-libfdk-aac \
  --enable-libtheora \
  --enable-zlib \
  --enable-libfreetype \
  --enable-libpulse \
  --enable-libfribidi \
  --enable-libass \
  --enable-libdav1d \
  --enable-librav1e \
  --enable-nvenc \
  --enable-gpl \
  --enable-nonfree

make -j 32

# Strip the 3 executables:
strip --strip-unneeded /tmp/ffmpeg/{ffmpeg,ffplay,ffprobe}

cp -v /tmp/ffmpeg/{ffmpeg,ffplay,ffprobe} $HOME/bin

rm -rfv /tmp/ffmpeg

No libraries installed and so far no issues with system FFmpeg libraries which are undisturbed. This leaves:

Code:

andrew@ilium~$ ffmpeg -version | head -n 1 && /usr/bin/ffmpeg -version | head -n 1
ffmpeg version git-2022-03-17-c606736 Copyright (c) 2000-2022 the FFmpeg developers
ffmpeg version 4.4.1 Copyright (c) 2000-2021 the FFmpeg developers
andrew@ilium~$

Have done this successfully for many years...

zdolar · 04-21-2022, 04:43 AM

Quote:

Originally Posted by andrew.46

I have a very quick and dirty method to leave the system FFmpeg binaries alone and also install and run the latest git FFmpeg. I install the 3 FFmpeg binaries to $HOME/bin after setting the $PATH to allow this preference:

Have done this successfully for many years...

Thank you for sharing this.
Will do that also.

Best regards,

Zdenko

zdolar · 08-09-2022, 07:45 AM

As some apps on Slackware do not work without ffmpeg-4 I decided to install ffmpeg-5 with coexisting ffmpeg-4.
The easiest way is to change ffmpeg-5 slackbuild - all install paths from /usr to /usr/local
After compile/install the system is happy.
All default apps that need ffmpeg-4 work and as PATH starts with /usr/local/.. calling ffmpeg from CLI run ffmpeg-5 without any changes elsewhere.
This is what I need, as I compiled ffmpeg-5 with nVidia HW support.