I exactly followed the steps here at Intel.com.
When I do sudo ldconfig I get the following error message:
/sbin/ldconfig.real: /opt/intel/common/mdf/lib64/igfxcmrt64.so is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libmfx.so.1 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libva.so.2 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libigdgmm.so.1 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libva-glx.so.2 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libmfxhw64.so.1 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libva-x11.so.2 is not a symbolic link
/sbin/ldconfig.real: /opt/intel/mediasdk/lib64/libva-drm.so.2 is not a symbolic link
I checked the opt/intel/mediasdk/lib64 directory, and it is indeed almost empty.
I tried reinstalling OpenVino, I tried reinstalling the mediaSDK component. Nothing is working.
I decided to install the older R3 version of OpenVino instead of the newest R4 version that came out this week, and no longer had problems. Don't know if it might just be something else at play too...