Here is a related thread on the nvidia site. Some monitors do not respond to DisplayPort power management commands properly.
https://devtalk.nvidia.com/default/topic/791786/dpms-not-working-on-gtx980-with-displayport-connection/
Here is a related thread on the nvidia site. Some monitors do not respond to DisplayPort power management commands properly.
https:/ /devtalk. nvidia. com/default/ topic/791786/ dpms-not- working- on-gtx980- with-displaypor t-connection/