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15 Posts

09-21-2018

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Flashing Display on Ideapad Flex 4-1470

2018-10-05, 5:41 AM

Periodically, the screen flashes bright and dim for a minute or so, then returns to normal.  Can anyone tell me what the problem is and how to fix it?

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296 Posts

08-02-2018

Philippines

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Re: Flashing Display on Ideapad Flex 4-1470

2018-10-05, 13:18 PM

HiGarb84! 

 

Please see this basic troubleshooting for flickering screen using this link: 

https://support.lenovo.com/us/en/solutions/ht501290

 

If the troubleshooting didn't work. Easiest way to isolate the issue if this is caused by hardware or software is by connecting the laptop to an external monitor. Observing if the screen will flicker on the external monitor. 

 

Regards,

Matt_lenovo

 

 

 



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15 Posts

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Re: Flashing Display on Ideapad Flex 4-1470

2018-10-06, 5:41 AM

Thank you for your helpful response.  Task Manager does not flicker, so it appears an app may be causing the problem.  However, I do not have Norton AV, iCloud, or IDT Audio installed, so it must be some other app.  Since I have many installed, though, it would take forever to uninstall each one and wait to see whether or not the screen still flickers.  Is there some action I could take when the screen does flicker, to determine which app is causing it?

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15 Posts

09-21-2018

United States of America

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Re: Flashing Display on Ideapad Flex 4-1470

2018-10-06, 5:44 AM

P.S.  I don't have an external monitor, so that isn't an option for me.

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456 Posts

08-02-2018

Philippines

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Re: Flashing Display on Ideapad Flex 4-1470

2018-10-06, 5:48 AM

There is no tool that will identify which app is causing the flickering of your laptop screen. The best way is to uninstall the apps manually one by one and check if the issue remains.



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15 Posts

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Re: Flashing Display on Ideapad Flex 4-1470

2018-10-06, 5:54 AM

That is unfortunate, since, as I explained, that is not feasible.  Apparently I will need to put up with the flickering screen until I can replace this machine.

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2 Posts

06-21-2021

Israel

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Re:Flashing Display on Ideapad Flex 4-1470

2021-06-21, 9:56 AM

I have similar problem with my IdeaPad Flex 4-1570

My display driver is updated, What can be the issue? 

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2 Posts

06-21-2021

Israel

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Re:Flashing Display on Ideapad Flex 4-1470

2021-06-21, 10:41 AM

hi Matt , im encountering same issue on Lenovo Ideapad FLEX 4 -1570

when connecting to external monitor the problem disappears , what shall I do ?

 

 

 

 

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