LM/Install driver

Install PPA driver

# install ppa (the most important)
sudo add-apt-repository -y ppa:kobuk-team/intel-graphics
sudo apt update
sudo apt install -y intel-opencl-icd libze-intel-gpu1 intel-media-va-driver-non-free clinfo intel-gsc

# check again
sudo clinfo

Check device connection

# Check eGPU connection (for eGPU only)
boltctl list

# Check hardware dectection
sudo dmesg | grep -i 'xe '

# Check pci devices
lspci | grep -i 'vga\|display'

Found B70 at PCI node 05:00.0

Intel Corporation Device e223 is Intel Pro Arc B70.

05:00.0 VGA compatible controller: Intel Corporation Device e223
66:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 1114 (rev c2)

Display device details.

# Check card detail (sudo is required)
sudo lspci -vvv -s 05:00.0

# Check linux device & owner/group
ls -l /dev/dri