Ashwin Lewis
If your computer monitor won't wake up after your computer goes to sleep, there are several potential causes and solutions to this problem. Firstly, it is important to check if your computer is in sleep or hibernation mode. If it is, try moving the mouse, pressing any key on the keyboard, or pressing the power button to wake it up. If this doesn't work, the issue could be related to your monitor's input source, power and sleep settings, graphics drivers, or cable connections. To troubleshoot, you can try manually selecting the correct input source, updating your graphics drivers, changing power settings, or replacing the cable. If none of these solutions work, you may need to seek assistance from a technician or manufacturer's support team.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Monitor displays | "No Signal" |
| Monitor input source | HDMI, DisplayPort, VGA |
| Power plan settings | "Turn off the display" and "Put the computer to sleep" |
| USB selective suspend setting | Disabled |
| Outdated or corrupt | Graphics drivers |
| Sleep mode | Disabled |
| Power plan | "High Performance" or "Balanced" |
| Hardware compatibility | Drivers or firmware |
| Monitor power | Disconnected and reconnected |
| Monitor settings | "HDMI Deep Sleep" and "DisplayPort Deep Sleep" unchecked |
| Intel(R) Management Engine Interface | Disabled |
| Windows version | Windows Vista without Service Pack 1 or later |
| Keyboard control panel item | "Allow this device to wake the computer" enabled |
| Power settings | Computer does not go into Sleep mode when plugged in |
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What You'll Learn
Check the monitor input source
If your monitor doesn't wake up from sleep mode, there are several troubleshooting steps you can take to identify and resolve the issue.
Firstly, ensure that the computer is not in sleep or hibernate mode. Move the mouse or press any key on the keyboard to wake it up. If this doesn't work, press the power button to wake up the computer.
Next, check the monitor input source. Sometimes, the monitor might switch to a different input source after waking up from sleep mode. Use the monitor's OSD (On-Screen Display) menu to manually select the correct input source (e.g., HDMI, DisplayPort) that your PC is connected to.
Additionally, verify that all cables connecting your monitor to the PC are securely plugged in at both ends. If you're using HDMI, DisplayPort, or DVI cables, try unplugging and replugging them.
You should also check your power plan settings, especially the "Turn off the display" and "Put the computer to sleep" options. Set them to values that are appropriate for your usage. As a temporary workaround, you can also disable sleep mode to see if the issue persists. Set the power plan to "High Performance" or "Balanced" without sleep mode enabled.
If none of these solutions work, there might be a more complex issue related to hardware compatibility, drivers, or firmware. In such cases, it's advisable to seek help from a qualified technician or your manufacturer's support team.
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Update graphics drivers
If your monitor won't wake up from sleep mode, there are several potential causes and fixes. Firstly, ensure that your computer is not in sleep or hibernation mode itself. If your computer is in sleep mode for a long time, it can enter hibernation mode, so try pressing the power button to wake it up. Monitors will wake up from sleep mode when they detect a video signal from the computer. If your monitor continues to enter standby mode, change the power and sleep settings.
If your monitor displays "no signal" when you wake up your computer, there could be several reasons for this. Firstly, check your monitor input source and ensure it is set to the correct input source (e.g. HDMI, DisplayPort) that your PC is connected to. You can use the monitor's OSD (On-Screen Display) menu to manually select the correct input source. Secondly, check your power plan settings, especially the "Turn off the display" and "Put the computer to sleep" options. Try setting the power plan to "High Performance" or "Balanced" without sleep mode enabled to see if the problem persists. If none of these solutions work, there may be a more complex issue related to hardware compatibility, drivers, or firmware. In this case, it is advisable to seek help from a qualified technician or your manufacturer's support team.
One potential fix for the issue is to update your graphics drivers. Graphics drivers can be updated through Windows Update, which automatically downloads and installs driver updates for various hardware, including video cards. To update your graphics drivers through Windows Update, follow these steps:
- Right-click on the Start menu and select Device Manager.
- In the Device Manager window, select the arrow next to "Display adapters" to expand the category.
- Right-click on your desired device (e.g. NVIDIA graphics card) and select "Update driver".
- In the Update Drivers window, select "Search automatically for updated driver software".
- Windows will search for updated drivers and install them if found. If not, you can select the option to search for updated drivers on Windows Update.
Alternatively, you can manually update your graphics drivers by downloading them from the device manufacturer's website. Make sure to download the correct drivers that match the version and architecture of Windows. Once downloaded, follow the installation instructions provided by the manufacturer. You may need to reboot your computer for the updates to take effect.
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Test with a different monitor/cable
If your monitor won't wake up after your computer goes to sleep, it is recommended to test with a different monitor or cable. This will help determine if the problem is related to your monitor or cable.
Firstly, try connecting your computer to a different monitor using the same cable. If the new monitor setup works, then the issue is likely with your original monitor. You may need to repair or replace your original monitor.
On the other hand, if the new monitor setup does not work, then the issue could be with the cable. Try using a different cable with the original monitor. If this alternative cable setup works, then the issue is likely with your original cable. Try using a different cable, preferably of the same type as the one that worked in the test.
If the issue is with the cable, it is advisable to replace it with a new one. If you are using a VGA cable, consider switching to a digital alternative such as HDMI, DVI, or DisplayPort, as Windows 10 may not "wake up" a monitor using VGA.
Additionally, ensure that the cable is properly connected to both the computer and the monitor. Disconnect and reconnect the cable if necessary. Check the monitor's input source and manually select the correct input (e.g., HDMI, DisplayPort) using the monitor's OSD (On-Screen Display) menu.
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Change power settings
If your computer monitor won't wake up after your computer goes to sleep, there are several power settings you can change to fix this issue. Firstly, ensure that your computer is not in sleep or hibernation mode. If it is, press the power button to wake it up.
Next, check your power plan settings. Go to "Control Panel -> Power Options," then select "Change plan settings" for your current power plan, and click on "Change advanced power settings." Scroll down to "PCI Express," click the "+" icon, and under "Link State Power Management," turn the setting off. Save these changes. You can also try setting the power plan to "High Performance" or "Balanced" without sleep mode enabled.
Additionally, you can adjust the settings for how long your device waits before turning off the screen and going to sleep when idle. On Windows, go to Start > Settings > System > Power & Battery > Screen and Sleep. Here, you can adjust the screen and sleep timers.
If you're using multiple USB port adapters, go to Device Manager and click on the Hub connected to your monitor. Under Power Management, uncheck the option that says "Allow the computer to turn off this device to save power."
For dual-monitor setups, you may need to replace the cable connecting your second monitor to your laptop or remove the VGA connection. If you're using a VGA cable with a DisplayPort adapter, try changing the BIOS settings by going to the Power tab and disabling the "Hibernate like Soft OFF" value.
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Restart the computer
If your monitor won't wake up after your computer goes to sleep, there are several troubleshooting steps you can take to identify and resolve the issue. Here are some detailed instructions focused on restarting your computer:
Restarting your computer can help resolve issues related to sleep mode and monitor connectivity. Here are the steps to properly restart your computer:
- Press the Power Button: If your computer is in sleep mode, simply press the power button to wake it up. This action should bring your computer back to its normal, full-power state.
- Check Sleep Mode Settings: Ensure that your computer is not set to hibernate or standby mode, as this can affect the monitor's ability to wake up. You can adjust these settings by going to the Control Panel or Power Options in your computer's settings.
- Restart the Graphics Driver: If you have dual monitors, try using the keyboard shortcut Ctrl+Shift+Win+B to restart the graphics driver. This has been known to fix issues with multiple monitors not waking up simultaneously.
- Update Display Drivers: Outdated or incompatible display drivers can cause issues with sleep mode. Visit your GPU manufacturer's website (NVIDIA, AMD, or Intel) and download the latest graphics drivers for your specific model. Install these drivers and restart your computer to see if that resolves the issue.
- Change Power Plan Settings: Adjust the power plan settings to "High Performance" or "Balanced" without sleep mode enabled. This can be done through the Power Options in the Control Panel.
- Check BIOS Settings: Ensure that your BIOS settings are up to date and optimized for power management. You can try resetting the BIOS settings to their default values if you're unsure of the optimal configuration.
- Check for Windows Updates: Keep your Windows operating system up to date, as Microsoft frequently releases updates that address sleep-related issues.
- Test with Different Monitor/Cable: If the issue persists, try connecting your computer to a different monitor or using a different cable to determine if the problem is specific to your current setup.
Remember, if none of these solutions work, there might be a more complex hardware or software compatibility issue. In such cases, it is advisable to seek assistance from a qualified technician or your manufacturer's support team.
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Frequently asked questions
There could be several reasons for this issue. Firstly, check if your computer is in sleep or hibernate mode. If it is, try moving the mouse, pressing any key on the keyboard, or pressing the power button to wake it up. If this doesn't work, the issue could be related to your monitor's input source or cable. Verify the input source by manually selecting the correct input (HDMI, DisplayPort, etc.) using the monitor's OSD (On-Screen Display) menu. If this doesn't help, try connecting your PC to a different monitor or cable to identify if the problem is with your original monitor or cable.
To change the input source on your monitor, use the monitor's OSD (On-Screen Display) menu to manually select the correct input source, such as HDMI or DisplayPort. Ensure that the selected input matches the connection your PC is using.
Yes, power settings can contribute to this issue. Check your power plan settings, particularly the "Turn off the display" and "Put the computer to sleep" options. Adjust these settings to values suitable for your usage. Additionally, disable the "USB selective suspend setting" under "Advanced power settings" to prevent USB devices, including the mouse, from being turned off during sleep.
You can try updating your graphics drivers as outdated or corrupt drivers can cause display issues. Visit your GPU manufacturer's website (NVIDIA or AMD) and download the latest graphics drivers for your specific GPU model. After installing the updated drivers, restart your PC. Additionally, you can try disabling sleep mode temporarily by setting the power plan to "High Performance" or "Balanced" to see if the issue persists.
If none of the above solutions resolve the issue, there may be a more complex problem related to hardware compatibility, drivers, or firmware. In such cases, it is advisable to seek assistance from a qualified technician or your manufacturer's support team. They can provide further guidance and help identify the root cause of the problem.
