If you have a dual monitor setup and the second monitor goes to sleep automatically without any sign to wake up, this article could be handy. Here are some of the tips to get rid of such problems – no matter whether you use Windows 11 or Windows 10. Also, the same solutions could be handy even if you have more than two monitors.
How do I wake up my second monitor from sleep mode?
There could be times when your second monitor could go to sleep mode automatically when the rest of the system is running smoothly. You need to keep a few things in mind if you want to wake up your second monitor from sleep mode. This article explains almost all the scenarios so that you can troubleshoot the issue entirely.
Second monitor goes to sleep and won’t wake up
If the second monitor goes to sleep and doesn’t wake up on your Windows system, follow these solutions:
- Verify cables
- Run Power Troubleshooter
- Check Power Plan
- Change Link State Power Management
- Verify company-specific settings
To learn more about these tips, continue reading.
1] Verify cables
At times, the HDMI, DVI-D, VGA, etc., cables could cause this problem. If you have a faulty cable and it is disconnecting randomly, you might think that your monitor is going to sleep mode. This misunderstanding could waste a lot of valuable time. That is why it is highly recommended to verify if your power cable and HDMI/VGA cables are fully functional or not.
2] Run Power Troubleshooter
As Sleep mode is internally linked to the power settings of your computer, running the Power Troubleshooter could resolve the issue. It is a very handy solution if you use a laptop computer. To run the Power Troubleshooter, follow these steps:
- Press Win+I to open Windows Settings.
- Click on the Troubleshoot menu.
- Click on the Other troubleshooters option.
- Find the Power Troubleshooter.
- Click the Run button.
Next, you need to follow the screen instructions.
3] Check Power Plan
Control Panel includes settings that help you put your computer in sleep mode. If there are some internal issues, this setting could apply to one monitor as well. Therefore, follow these steps to verify the Power Plan settings:
- Search for the edit power plan in the Taskbar search box.
- Click on the individual search result.
- Check the Put the computer to sleep setting.
You can select Never and check if it resolves the problem or not.
4] Change Link State Power Management
Link State Power Management option primarily helps you monitor how you want to allow your system to consume power when it is plugged in or unplugged. Therefore, if this setting is not set correctly, you could get the issue mentioned above. Follow these steps to set up Link State Power Management setting:
- Search for power options in the Taskbar search box.
- Click on the search result.
- Click the Change advanced power settings option.
- Expand the PCI Express setting.
- Expand the Link State Power Management option.
- Select the Moderate power saving option from the drop-down list.
- Click the OK button.
However, the setting mentioned above is already selected; you can choose the Off option and check if it does anything or not.
5] Verify company-specific settings
Depending on your monitor, you can check the manufacturer-specific settings as well. For example, Dell, Samsung, LG, BenQ, etc., monitors come with a wizard that allows users to set things up as per their requirements. Such options help you manage your monitor the way you like. However, if you set things up incorrectly, you might encounter problems like the one mentioned above. For your information, you can check the Monitor Deep Sleep setting if you use a Dell monitor/computer.
As said, almost all other manufacturers also offer a similar option so that you can tweak things as you like. It is suggested to check such settings as well.
Why is my second monitor not waking up?
Many things could be mixed up to cause this issue if you use Windows 11/10 PC. Here we have consolidated some working solutions to troubleshoot the problem when your second monitor is not waking up from sleep mode. That said, checking the Power Plan settings, Link State Power Management settings, running the Power Troubleshooter, etc., are suggested.