Macbook screen "flashes" when waking from sleep.

[reubs]

Lately when I wake my Macbook up from sleep the screen will "flash" like it does when Photo Booth takes a picture. I see the screen, then a flash, and then the screen is back to normal. There doesn't appear to be any other issues at play, but I'm wondering if others have had this problem, or if this is something that should concern me.

Thanks for any opinions.

 

[whawhat]

mine does as well. really never thought about it till this post. is this a bad thing?

 

[someguy]

I'm sure someone will beat me to this, possibly with a better answer, but try opening System Preferences, clicking the Universal Access prefpane, and look in the "Hearing" tab.

Uncheck "Flash the screen when an alert sound occurs".

Does that help?


EDIT: Looks like I'm faster than I thought.

 

[reubs]

I'm sure someone will beat me to this, possibly with a better answer, but try opening System Preferences, clicking the Universal Access prefpane, and look in the "Hearing" tab.

Uncheck "Flash the screen when an alert sound occurs".

Does that help?


EDIT: Looks like I'm faster than I thought.

No, that's not the "flash" that I'm experiencing, but it is pretty cool...

I'm still trying to figure out the source of it b/c it did not just do it when I woke up the Macbook by raising the lid...

 

[Mac'Mo]

flash? like flickering on? i dont think it happens to me at all

 

[Kodex]

It sounds like its your invertor kicking back on from a display sleep. Does the screen flash when you first turn on the computer? Does it flash if you force it to sleep with command option eject?

 

[EricNau]

It's perfectly "normal" ...just very annoying.

 

[macmama]

This happens to me too. Glad I'm not the only one, b/c it really does look kinda "wrong" when it happens

 

[Igantius]

*Bump*

Not sure if I should be reviving this thread... noticed this sometimes happens with my MB... kinda annoying, but as long as it's gonna live, think I can live with it...

 

[carlobloks]

solved?

I have no idea if people are still concerned about the screen flashing during 'wake up'... but I think I found out why it does so, or at least how you make sure it does not flash anymore...

System preferences>desktop&screensaver>screensaver... and if you then set the screensaver to start at NEVER the screen will no longer flash during 'waking up'

good luck!

 

[Shannighan]

this happens when you have the brightness setting lower then full.
try turning the brightness all the way up, no flash, then turn it all the way down (not off) and boom... flash

 

[honuwebd]

Mine also does the flicker when it wakes up but has been doing it a lot more lately. Also about an hour ago I was working (typing up a paper) and my screen decided to flicker again. It lasted for about 1.5 seconds, but it was very noticeable. I've never seen nor heard of this before. Is it time to call apple? I don't want to wake up one day to find my screen can no longer turn on.

 

[mulletman13]

*bump*

None of these solutions have worked for me. Another thing I notice, is that after my computer has been asleep for a half hour or so, the backlight will turn on (the Apple will light up), but the computer will still be asleep.

Anybody experience any similar situations?

Thanks!

 

[2012Tony2012]

Same problem here... screen flickers when I wake up my Mac.
Flickering goes away about 10 minutes though.

And if I reboot it stops... but what a pain to reboot all the time

Any fixes?

 

[WolfMB2008]

i just did a smc reset and it kinda stopped, i ahve 2008 macbook unibody..

 

[sekar]

Hey guys,
Couple years late I know. I had this issue couple of years on my Macbook Pro 10,1 on OCLP Monterey.

What fixed it for me is -not sure for the name since i dont use macOS in english- deleting 'tools' on 'notification center' which comes out from right from the screen with two finger swipe.

Hope it helps.