I am working off of a laptop and have a second monitor to extend my displays. I have been using this set up for two years now and have not had a problem until last night. It seems that my attached monitor only (main monitor on laptop is not affected) will go black for a few seconds before turning back on and showing my screen. It should be noted that my laptop does not reset the display to place the windows back onto the main screen when this happens but the extended monitor goes black at random. Note that I am running Windows 10 and unable to upgrade to Windows 11 as of now. So far, I have tried the following solutions but still cannot figure this out. Bought brand new chords (HDMI + Adapter) Bought a brand new second monitor (issues happening with both old and new monitor) Checked for updates on all drivers Reinstalled both graphics drivers Rolled back graphics drivers Checked basic settings (sleep/power/screen saver settings) Disabled all services in background apps in "System Configuration" Restarted Windows explorer This means I have spent time replacing and even buying new equipment to get around this issue but cannot seem to figure it out! This is very important since I work at home as well. Please let me know if there is anything else I can possibly do outside of hard resetting the computer (which I cannot do for a few reasons). Thank you!

I saw another thread where someone running Linux had also experienced this problem. If so (and I can't be sure), that would suggest that the problem is with hardware, rather than Windows (or other software). As far as hardware goes, I have replaced both monitors and both cables. So that leaves the graphics adapter, motherboard, CPU, RAM, power supply, etc. My hardware is: Aorus B450 AORUS ELITE (Socket AM4/B450/DDR4/S-ATA 600/ATX) AMD Ryzen 7 2700X Processor with Wraith Prism RGB LED Cooler - YD270XBGAFBOX ZOTAC GeForce GTX 1660 SUPER 6GB Twin Fan Graphics Card 1 x 32GB Corsair Vengeance LPX DDR4 3200MHz Memory. Perhaps others with this problem can share their hardware details, so that we can look for common factors? Before I replaced the monitors (I upgraded from 24" HD to 27" QHD) the 2nd display would only go blank when I turned my desk fan on or off. It was plugged into the same gang socket as that monitor. So I assumed that it was a mains power supply problem. However, I then plugged the monitor into a completely different outlet, and the problem persisted. The problem is now worse - my desk fan is now completely unplugged, and the 2nd display is still going blank. I hoped that when I replaced both monitors the problem might go away. It didn't. I then tried upgrading from Windows 10 to Windows 11. That didn't help either. I removed and re-inserted the display adapter. That didn't help. ????

NO POST Screen (Aorus Motherboard Logo) when second monitor is connected : Monitors (reddit.com)

I've only experienced this very recently and it's been totally frustrating (I've used the same monitors for several years and they are identical). I appear to have solved the problem by going to the "power & sleep" settings and setting screen to "never" when plugged in. Same for screen saver.

Thanks for that. I have since upgraded to Windows 11. I had the odd recurrence just after upgrading, but nothing now for over a week, so I'm hoping that the problem might have gone away.

Second monitor keeps on temporarily going black at random

Anonymous

I am working off of a laptop and have a second monitor to extend my displays. I have been using this set up for two years now and have not had a problem until last night. It seems that my attached monitor only (main monitor on laptop is not affected) will go black for a few seconds before turning back on and showing my screen. It should be noted that my laptop does not reset the display to place the windows back onto the main screen when this happens but the extended monitor goes black at random. Note that I am running Windows 10 and unable to upgrade to Windows 11 as of now.

So far, I have tried the following solutions but still cannot figure this out.

Bought brand new chords (HDMI + Adapter)
Bought a brand new second monitor (issues happening with both old and new monitor)
Checked for updates on all drivers
Reinstalled both graphics drivers
Rolled back graphics drivers
Checked basic settings (sleep/power/screen saver settings)
Disabled all services in background apps in "System Configuration"
Restarted Windows explorer

This means I have spent time replacing and even buying new equipment to get around this issue but cannot seem to figure it out! This is very important since I work at home as well. Please let me know if there is anything else I can possibly do outside of hard resetting the computer (which I cannot do for a few reasons). Thank you!

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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157 answers

Anonymous

2024-01-26T11:29:54+00:00
I saw another thread where someone running Linux had also experienced this problem. If so (and I can't be sure), that would suggest that the problem is with hardware, rather than Windows (or other software).

As far as hardware goes, I have replaced both monitors and both cables. So that leaves the graphics adapter, motherboard, CPU, RAM, power supply, etc. My hardware is:
- Aorus B450 AORUS ELITE (Socket AM4/B450/DDR4/S-ATA 600/ATX)
- AMD Ryzen 7 2700X Processor with Wraith Prism RGB LED Cooler - YD270XBGAFBOX
- ZOTAC GeForce GTX 1660 SUPER 6GB Twin Fan Graphics Card
- 1 x 32GB Corsair Vengeance LPX DDR4 3200MHz Memory.
Perhaps others with this problem can share their hardware details, so that we can look for common factors?

Before I replaced the monitors (I upgraded from 24" HD to 27" QHD) the 2nd display would only go blank when I turned my desk fan on or off. It was plugged into the same gang socket as that monitor. So I assumed that it was a mains power supply problem. However, I then plugged the monitor into a completely different outlet, and the problem persisted. The problem is now worse - my desk fan is now completely unplugged, and the 2nd display is still going blank.

I hoped that when I replaced both monitors the problem might go away. It didn't. I then tried upgrading from Windows 10 to Windows 11. That didn't help either. I removed and re-inserted the display adapter. That didn't help.

????
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Anonymous

2024-01-26T12:25:12+00:00

NO POST Screen (Aorus Motherboard Logo) when second monitor is connected : Monitors (reddit.com)
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Anonymous

2024-01-26T17:49:15+00:00

Sounds like a different issue?
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Anonymous

2024-02-05T14:59:05+00:00

I've only experienced this very recently and it's been totally frustrating (I've used the same monitors for several years and they are identical). I appear to have solved the problem by going to the "power & sleep" settings and setting screen to "never" when plugged in. Same for screen saver.
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Anonymous

2024-02-05T15:08:02+00:00

Thanks for that. I have since upgraded to Windows 11. I had the odd recurrence just after upgrading, but nothing now for over a week, so I'm hoping that the problem might have gone away.
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