I have had to remove the VGA connection on countless users computers to get around the problem.
I found a simple solution I make sure that no monitor is using VGA. There's some more information in this question. This has only just started happening, around the time of the last update Cumulative Update for Windows 10 Version for xbased Systems KB I had a similar issue with one of my dual monitors not showing up after resuming from sleep. I have also changed the settings to make the laptop screen my main display, and the issue still occurs, just on the laptop screen instead. This problem does not occur on startup, and I have set the second screen to be my main display - but I do often disconnect the laptop to take it with me. Once I plug the VGA cable back in, the second screen "wakes up" too. My laptop is set to go to sleep when not in use, but when I have it set to use Dual screens, after I "wake it up", all I can see is the mouse on the second screen, flickering. Super User is a question and answer site for computer enthusiasts and power users. Hi Charlie, If your second monitor goes in to Sleep mode after connecting it to your laptop, it could be that some settings of the Power Options in Windows 10 are incorrectly configured.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. You can follow the question or vote as helpful, but you cannot reply to this thread. So I use a laptop and I am trying to connect a second monitor via HDMI and when I plug it in, it goes into sleep mode and I've tried going in display settings but changing stuff there doesn't seem to make a difference, any way to fix this? This thread is locked. Tell us about your experience with our site. If not, kindly do so and see if the second monitor works as expected. May we know if the monitor is detected in the Display settings from the Settings app? If yes, is the settings under Multiple displays from that page set to Extend these displays? Since the problem does not occur with a different cable, we could deduce that the issue may be with the settings of Windows 10 or with your monitor. We appreciate the information you have provided.
Did this solve your problem? How To Disable Sleep Mode When An External Display Is Connected Also, kindly use a different HDMI cable to rule out the possibility of a faulty cable. If it does, kindly connect the second monitor to another computer and see the problem is observed. Here's how to restore the power settings to default.Īfter setting it to default, observe if the issue persists. We recommend that you restore all power settings to default and see if the second monitor still goes to Sleep after connecting it. If your second monitor goes in to Sleep mode after connecting it to your laptop, it could be that some settings of the Power Options in Windows 10 are incorrectly configured.
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