I cannot find Intel gfx driver

[RySAP]

Hi,

I'd like to decode RTP H.264 video stream with Media SDK.

But installation of Media SDK is failed. 

Download libva, libva-utils, Gmmlib, media-driver and MediaSDK from github.

Build and install with gcc 8.3.1(devtoolset-8).

         libva: https://github.com/intel/libva/releases/tag/2.7.0

         libva-utils: https://github.com/intel/libva-utils/releases/tag/2.7.1

         Gmmlib: https://github.com/intel/gmmlib/releases/tag/intel-gmmlib-20.1.1

         Driver: https://github.com/intel/media-driver/releases/tag/intel-media-20.1.1

         Media SDK and Samples: https://github.com/Intel-Media-SDK/MediaSDK/releases/tag/intel-mediasdk-20.1.0

Run vainfo.

    # vainfo
               error: XDG_RUNTIME_DIR not set in the environment.
               error: can't connect to X server!
               libva info: VA-API version 1.7.0
               libva info: User environment variable requested driver 'iHD'
               libva info: Trying to open /usr/local/lib/dri/iHD_drv_video.so
               libva info: Found init function __vaDriverInit_1_7
               DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument
              Assuming 131072kB available aperture size.
              May lead to reduced performance or incorrect rendering.
              get chip id failed: -1 [22]
              param: 4, val: 0
              libva error: /usr/local/lib/dri/iHD_drv_video.so init failed
              libva info: va_openDriver() returns 18
              vaInitialize failed with error code 18 (invalid parameter),exit

Run vainfo with option "--display drm --device /dev/dri/renderD129" for all of /dev/dri/*.

As a result, it was same error message.

I made following code to initialize.

But device files are not found.

          int open_intel_adapter()
          {
                     std::string adapterPath = "/dev/dri/renderD";

           char driverName[5] = {};
           mfxU32 nodeIndex = 128;

           for (mfxU32 i = 0; i < 16; ++i) {
                          std::string curAdapterPath = adapterPath + std::to_string(nodeIndex + i);

                          int fd = open(curAdapterPath.c_str(), O_RDWR);
                          if (fd < 0) continue;

                          drm_version_t version = {};
                                          version.name_len = 32;
                                          version.name = driverName;
                                          ioctl(fd, DRM_IOWR(0, drm_version), &version);
                                          if(!strcmp(driverName, "i915")) return fd;
                        close(fd);
                    }
                   return -1;
          }

My Environment is;

OS
           CentOS Linux release 7.6.1810
CPU
           Intel(R) Core(TM) i7-6800K CPU @ 3.40GHz
GPU
           NVIDIA GeForce GTX 1080
                  NVIDIA gfx driver is installed.
　                         NVRM version: NVIDIA UNIX x86_64 Kernel Module 450.80.02 Wed Sep 23 01:13:39 UTC 2020
                 NVIDIA gfx driver is disabled as follows.
　                           # sudo mv /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r)-nouveau.img
　                            # sudo dracut --force --omit-drivers nouveau /boot/initramfs-$(uname -r).img $(uname -r)
　                            # echo "blacklist nouveau" | sudo tee /etc/modprobe.d/modprobe.conf
　                            # echo "blacklist nouveau" | sudo tee /etc/modprobe.d/nouveau-blacklist.conf
DRI
                  # ls /dev/dri
                              card0 card1 renderD128 renderD129
                  # cat /sys/kernel/debug/dri/*/name
                              nvidia-drm dev=0000:03:00.0 unique=0000:03:00.0
                              nvidia-drm dev=0000:03:00.0 unique=0000:03:00.0
                              nvidia-drm dev=0000:04:00.0 unique=0000:04:00.0
                              nvidia-drm dev=0000:04:00.0 unique=0000:04:00.0

Could you tell me why intel gfx driver is not found?

I plan to try another PC.  CPU of that PC is Intel(R) Xeon(R) W-2133 CPU @ 3.60GHz.

Does Media SDK support Xeon W-2133?

[JaideepK_Intel]

Hi,

Thank you for posting in Intel Communities.

We are investigating your issue at our end and we will get back to you soon.

Thanks,

Jaideep

[JaideepK_Intel · Accepted solution]

Hi,

Xeon Processors:

For Media SDK, we must make sure “Quick Sync” is included in the integrated GPU. So Xeon W-2133 will not work. We only include GPU in Xeon E3.

i7-6800K should be ok but if Nvidia's GPU takes the primary position, the integrated GPU might not be accessible. Please go through below links:

1. https://github.com/Intel-Media-SDK/MediaSDK/issues/167
2. https://github.com/Intel-Media-SDK/MediaSDK/issues/1067
3. https://github.com/Intel-Media-SDK/MediaSDK/issues/2477

Thanks,

Jaideep

[RySAP]

Hi,

Thank you for your reply.

Please close this.

[JaideepK_Intel]

Hi,

Glad to know that your issue is resolved. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Thanks,

Jaideep