[Cin] How to access a second Intel iGPU in a workstation with additional discrete Nvidia GPU?
Terje J. Hanssen
terjejhanssen at gmail.com
Sat Aug 31 00:58:45 CEST 2024
I am stuck how to configure QSV access to an enabled iGPU onboard an
Intel Core i7-6700K (Skylake). This is a legacy, rebuilt workstation
with additional, discrete Nvidia GeForce GTX 960 GPU on a MSI-Z170-A Pro
mobo. Any idea and code modification below?
Details as follows:
inxi -CGMSz
System:
Kernel: 6.10.5-1-default arch: x86_64 bits: 64
Desktop: GNOME v: 46.3.1 Distro: openSUSE Tumbleweed-Slowroll 20240803
Machine:
Type: Desktop Mobo: MSI model: Z170-A PRO (MS-7971) v: 1.0
serial: <superuser required> UEFI: American Megatrends v: 1.K0
date: 07/10/2018
CPU:
Info: quad core model: Intel Core i7-6700K bits: 64 type: MT MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 800 min/max: 800/4200 cores: 1: 800 2: 800 3: 800
4: 800
5: 800 6: 800 7: 800 8: 800
Graphics:
Device-1: Intel HD Graphics 530 driver: i915 v: kernel
Device-2: NVIDIA GM206 [GeForce GTX 960] driver: nvidia v: 550.100
Display: wayland server: X.org v: 1.21.1.12 with: Xwayland v: 24.1.1
compositor: gnome-shell driver: X: loaded: modesetting unloaded:
fbdev,vesa
gpu: nvidia,nvidia-nvswitch resolution: 1920x1080~60Hz
API: OpenGL v: 4.6.0 vendor: nvidia v: 550.100 renderer: NVIDIA GeForce
GTX 960/PCIe/SSE2
API: Vulkan v: 1.3.290 drivers: N/A surfaces: xcb,xlib,wayland
API: EGL Message: EGL data requires eglinfo. Check --recommends.
lspci -k | grep -EA3 'VGA|3D|Display'
00:02.0 Display controller: Intel Corporation HD Graphics 530 (rev 06)
DeviceName: Onboard IGD
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7971
Kernel driver in use: i915
--
01:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce GTX
960] (rev a1)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3201
Kernel driver in use: nvidia
Kernel modules: nouveau, nvidia_drm, nvidia
=====================================================================
Trying to test QSV via FFmpeg benchmark similar like this Vulkan code
ffmpeg -init_hw_device "vulkan=vk:0" -hwaccel vulkan
-hwaccel_output_format vulkan -i INPUT -f null - -benchmark
https://trac.ffmpeg.org/wiki/HWAccelIntro#Vulkan
cause an output error which reports: "device type qsv needed".
Intel Skylake with HD 530 graphics gen 9, should be capable to decode
and encode MPEG-2/H.264/H.265 according to
https://trac.ffmpeg.org/wiki/Hardware/QuickSync#HardwareSupport
ffmpeg -hide_banner -hwaccel qsv -hwaccel_output_format qsv -i
h264_8bit_yuv420p.mp4 -f null - -benchmark
[AVHWDeviceContext @ 0x557526873500] Error creating a MFX session: -9.
Device creation failed: -1313558101.
[vist#0:0/h264 @ 0x55752685c6c0] [dec:h264_qsv @ 0x55752685b300] No
device available for decoder: device type qsv needed for codec h264_qsv.
[vist#0:0/h264 @ 0x55752685c6c0] [dec:h264_qsv @ 0x55752685b300]
Hardware device setup failed for decoder: Unknown error occurred
[vost#0:0/wrapped_avframe @ 0x55752685a740] Error initializing a simple
filtergraph
Error opening output file -.
Error opening output files: Unknown error occurred
bench: maxrss=67452KiB
I have tried to define and add a qsv device according to the last
section here
https://trac.ffmpeg.org/wiki/Hardware/QuickSync#Transcode
|-qsv_device| is an qsv customized option can be used to specify a
hardware device and avoid the default device initialization failure when
multiple devices usable (eg: an Intel integrated GPU and an AMD/Nvidia
discrete graphics card). One example on Linux (more details please see
https://trac.ffmpeg.org/ticket/7649 <https://trac.ffmpeg.org/ticket/7649>)
ffmpeg -hwaccel qsv -qsv_device /dev/dri/renderD128 -c:v h264_qsv -i
input.mp4 -c:v h264_qsv output.mp4
and also had a look at this answer
https://stackoverflow.com/questions/44747381/i-cant-use-hw-encoder-of-qsv-by-ffmpeg#47145215
---------------------------------------------------
Other HWA verification info:
vulkaninfo | egrep 'GPU|driver'
VK_LUNARG_direct_driver_loading : extension revision 1
GPU id = 0 (Intel(R) HD Graphics 530 (SKL GT2))
GPU id = 1 (NVIDIA GeForce GTX 960)
GPU id = 0 (Intel(R) HD Graphics 530 (SKL GT2))
GPU id = 1 (NVIDIA GeForce GTX 960)
GPU id : 0 (Intel(R) HD Graphics 530 (SKL GT2)):
GPU id : 1 (NVIDIA GeForce GTX 960):
GPU id : 0 (Intel(R) HD Graphics 530 (SKL GT2)):
GPU id : 1 (NVIDIA GeForce GTX 960):
GPU0:
driverVersion = 24.1.5 (100667397)
deviceType = PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU
driverUUID =
cc628f46-3d02-8624-0c8a-e98e0420c4f6
driverID =
DRIVER_ID_INTEL_OPEN_SOURCE_MESA
driverName = Intel
open-source Mesa driver
driverInfo = Mesa 24.1.5
VK_KHR_driver_properties : extension revision 1
GPU1:
driverVersion = 550.100.0.0 (2308505600)
deviceType = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
driverUUID =
63390c76-60ef-5529-a6ac-99167eb42a9c
driverID =
DRIVER_ID_NVIDIA_PROPRIETARY
driverName = NVIDIA
driverInfo = 550.100
VK_KHR_driver_properties : extension revision 1
-----------
Verifying VA-API
vainfo
Trying display: wayland
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib64/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_21
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.22 (libva 2.22.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics -
24.1.5 ()
vainfo: Supported profile and entrypoints
VAProfileNone : VAEntrypointVideoProc
VAProfileNone : VAEntrypointStats
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Simple : VAEntrypointEncSlice
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointFEI
VAProfileH264Main : VAEntrypointEncSliceLP
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointFEI
VAProfileH264High : VAEntrypointEncSliceLP
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264ConstrainedBaseline: VAEntrypointFEI
VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileVP8Version0_3 : VAEntrypointEncSlice
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointEncSlice
VAProfileHEVCMain : VAEntrypointFEI
-------
Verifying VDPAU
vdpauinfo | egrep 'Driver|GPU'
Information string: NVIDIA VDPAU Driver Shared Library 550.100 Thu Jun
27 18:11:42 UTC 2024
===========================================
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