Screen going black for a second repeatedly.

[gem7680]

What is the make and model of the 2nd monitor?

Acer G246HL

When you ran speccy you had it connected to a Kogan tv.

Correct. I was trying to see if a different monitor would work.

Can you see anything at all on the laptop screen?

I can see the desktop or what ever I’m using on the computer but it’s distorted, has some lines, ghosting etc.

If yes, does it go blank at the same time as the

No, it doesn’t go blank when the external monitor goes black.

[gem7680]

Also, may we have the service tag number of the laptop

Sure, it’s 86LYPV2

[PeterOz]

Your laptop was originally windows 10
Did this happen only after the windows 11 update
When the 2nd monitor is connected what refresh rate are you using
Try 60Mhz (could be 59)

[gem7680]

Your laptop was originally windows 10
Did this happen only after the windows 11 update
When the 2nd monitor is connected what refresh rate are you using
Try 60Mhz (could be 59)

It did start after the windows 11 update.
I think it was at 59Mhz.

[PeterOz]

Can you go here and download speed fan and install Click On Me .
Run speed fan then click on the Exotics tab > show the magic. Post a screen capture. To do a screen capture in Windows 10 press the windows key and the print screen button together. It will put the image in Pictures>Screenshots

[PeterOz]

It did start after the windows 11 update.

Roll back to a time before the update with system restore or remove update
[HEADING=1]
Remove an installed Windows update[/HEADING]
If you’ve recently installed a Windows update, uninstall the update to try to resolve the issue.
[ol]
[li]Select Start > Settings > Windows Update > Update history > Uninstall updates .[/li]View update history
[li]On the list that appears, select update you want to remove, and then select Uninstall.[/li][/ol]

or go here Click on me and scroll down to system restore and read how

[gem7680]

I’ve had the laptop connected to the TV (TCL Smart TV) for a number of hours yesterday and a few days before and it didn’t flash once, I’ve just connected it back to the Acer monitor and it’s flashing and is black most of the time.

The Acer monitor was used with another laptop and was fine the whole time.

[PeterOz]

Same cable as tv

[gem7680]

Same cable as tv

No, different cable.

[PeterOz]

can you try the tv cable

[Malnutrition]

@Ana William you will need to start your own thread.

[Rustys]

abandoned thread