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Display not waking up upon sleeping

Tags:
  • Power Supplies
  • Computers
  • Monitors
  • Graphics
  • Asus
  • Display
Last response: in Graphics & Displays
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August 25, 2014 7:55:08 PM

Hello,

I'm new to building. Just built a new system a few weeks ago. I have an ASUS 4K monitor (PB287Q). ASUS Z97-A Motherboard. Corsair Vengeance 32 GB RAM. Intel 4790K CPU.

So, when my computer goes to sleep and my monitor goes to sleep, I am not able to wake up the monitor with the usual "moving my mouse".
-----I try to turn the monitor on and off and that doesn't wake up the monitor.
-----So, I changed my computer to "Never sleep" in the Power section and I'm still having the problem. My monitor is set to go to sleep after 15 minutes as I don't want it on all day. I cannot wake up the monitor after it turns off. It doesn't always happen, but the longer I am away, the more likely I am not able to wake up the monitor (e.g. If I'm away from the computer for a few hours, it is more likely that I won't be able to turn on the monitor).
-----The only reliable solution is to restart the computer, and then the monitor turns on, but I'll lose whatever I was working on that was on the screen.
-----The other day this happened where I couldn't wake up my monitor and I move the Display Port cord around and the monitor turned on. Unusual.

Any ideas on what could be causing this?

Prior to building, I read about people not being able to wake up their computer because of "Haswell" low power state and compatibility with power supplies. So I made sure I purchased a power supply with "Intel Haswell Processor Ready", which was the Seasonic 660 platinum.

Could it still be the CPU low power state? Do I need to mess with "C6/C7" bios thing? I'm not that experienced with Bios changing. However, if my computer is set to "never sleep", would this be an issue??


Was deciding whether I should return the monitor??

Thanks much for your time, very much appreciated

More about : display waking sleeping

August 31, 2014 8:27:38 AM

I was able to solve this issue. Despite calling Asus 3 times they could not figure it out – their customer service is lacking a bit.

So, I simply went to the Device Manager section in the Control Panel. There are several sections, including “Mice and other pointing devices”, “Keyboards”, but also under “Human Interface Devices”.

I right clicked on the various devices in those sections and went to “Properties”, then under “Power Management”, I unchecked “Allow the computer to turn off this device to save power”. I think the computer was turning off the mouse and keyboard and then I was not able to use these devices to wake up the monitor. Also, there is a check box on the same Power Management section “Allow this device to wake the computer” and I made sure that was checked if an option.
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August 31, 2014 8:28:55 AM




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I was able to solve this issue. Despite calling Asus 3 times they could not figure it out – their customer service is lacking a bit.

So, I simply went to the Device Manager section in the Control Panel. There are several sections, including “Mice and other pointing devices”, “Keyboards”, but also under “Human Interface Devices”.

I right clicked on the various devices in those sections and went to “Properties”, then under “Power Management”, I unchecked “Allow the computer to turn off this device to save power”. I think the computer was turning off the mouse and keyboard and then I was not able to use these devices to wake up the monitor. Also, there is a check box on the same Power Management section “Allow this device to wake the computer” and I made sure that was checked if an option.
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0
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