It is not a driver issue, but an unhelpful KVM switch that doesn't trigger a hotplug event on change and marks the display as unconnected when switched away.
echo 0 > /sys/modules/drm_kms_helper/parameters/poll
will fix most of the observed behaviour.
It is not a driver issue, but an unhelpful KVM switch that doesn't trigger a hotplug event on change and marks the display as unconnected when switched away.
echo 0 > /sys/modules/ drm_kms_ helper/ parameters/ poll
will fix most of the observed behaviour.