Ubuntu
gnome-screensaver package

  1. Bug #988290
  2. Comment #25

Comment 25 for bug 988290

Revision history for this message
Chris Wilson (ickle) wrote :

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.