Install beignet-opencl-icd by entering the following commands in the terminal:
sudo apt update sudo apt install beignet-opencl-icd
OpenCL library for Intel GPUs
OpenCL (Open Computing Language) is a multivendor open standard for general-purpose parallel programming of heterogeneous systems that include CPUs, GPUs and other processors. . This package contains the shared library for the Intel implementation, which supports the integrated GPUs of Ivy Bridge (ix-3xxx)/Bay Trail and later Intel processors. . Future processors (even in the same family) are likely to require future versions of this package; in Debian stable, these will be provided in -backports.