Display Port randomly goes offline after automatic screen turn-off timer.
questionbug
I have one screen currently connected to my system using DP 1.2 (highest speed available from the monitor) running at 1080p120. Through Power Management the screen is set to dim at 2 minutes and go off at 5 minutes.
What sometimes happens is that a disconnect sound is played when the screen meets the timer and when waking the computer, the screen will indicate it has no signal. Replugging the cable in the same port will not bring it back, only moving the cable to a different port will make the screen reconnect and receive a signal again, so it seems the current port (top DP port) is the one that isn't working anymore.
Once rebooting the whole system the port comes back again, so I wager it's something software-wise controlling the given port. I only wish to know how one would go about troubleshooting this. I imagine there might be something logged somewhere, can anyone recommend me a command or commands that I could use in Terminal to check if there are any entries regarding this issue?
What sometimes happens is that a disconnect sound is played when the screen meets the timer and when waking the computer, the screen will indicate it has no signal. Replugging the cable in the same port will not bring it back, only moving the cable to a different port will make the screen reconnect and receive a signal again, so it seems the current port (top DP port) is the one that isn't working anymore.
Once rebooting the whole system the port comes back again, so I wager it's something software-wise controlling the given port. I only wish to know how one would go about troubleshooting this. I imagine there might be something logged somewhere, can anyone recommend me a command or commands that I could use in Terminal to check if there are any entries regarding this issue?
