On 31.03.2014 18:48, Raj B wrote:
> to clarify, switching off the projector is fine. turning off the
> receiver causes the issue. In all cases, nothing is done to the computer
> itself. It is on and fully operational at all times (i.e., it is never
> suspended / shut down etc.).

What happens when you connect the projector directly to your PC?

I sometimes have a similar issue with a Samsung TV, a Denon 4308
Receiver and a Raspberry Pi. The problem here is the receiver in the middle.

Cheers
  Mike

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https://bugs.launchpad.net/bugs/1268151

Title:
  DPMS support broken, fails to wake up the monitor after putting it to
  sleep

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