C7: lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Device 3185 (rev 03) grep Driver /var/log/Xorg.0.log [ 24.374] (**) | |-->Device "Intel Graphics" [ 24.610] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets: [ 24.614] (II) intel: Driver for Intel(R) HD Graphics [ 24.614] (II) intel: Driver for Intel(R) Iris(TM) Graphics [ 24.614] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics [ 24.904] (II) config/udev: Adding input device HDA Intel PCH Line Out (/dev/input/event10) [ 24.905] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event11) [ 24.906] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=3 (/dev/input/event12) [ 24.907] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=7 (/dev/input/event13) [ 24.908] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=8 (/dev/input/event14) [ 24.909] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=9 (/dev/input/event15) [ 24.910] (II) config/udev: Adding input device HDA Intel PCH HDMI/DP,pcm=10 (/dev/input/event16) [ 24.910] (II) config/udev: Adding input device HDA Intel PCH Mic (/dev/input/event9) C8 lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 605 (rev 03) grep Driver /var/log/Xorg.0.log [ 38.654] X.Org Video Driver: 24.0 [ 38.664] Module class: X.Org Video Driver [ 38.664] ABI class: X.Org Video Driver, version 24.0 [ 38.664] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets: [ 38.665] (II) intel: Driver for Intel(R) HD Graphics [ 38.665] (II) intel: Driver for Intel(R) Iris(TM) Graphics [ 38.665] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics In C8 /var/log/messages I see messages about "no i915.ko binding for Intel codec". Yes xorg-x11-drv-intel is loaded on C8 and C7. Jerry