iMac 4k (late 2015) photoshop screen flickering issue/bug

I have the same issue when using the brush at a certain size and moving off the canvas onto a panel, and it doesn't just occur on photoshop. I've had it happen on certain websites too. Other users have noted other applications that it happens in too. There was some other forum I read the said it was a iMac GPU issue, something related to the cursor refreshing. Which is related to what someone else said about the problem happening with custom cursors. But I don't know anything about this kind of stuff.

I think Macedotavares suggested the best solution to this:

I've had this problem ever since I bought mine, 3 months ago. Nothing that Apple Care suggested seemed to work. Then, while fiddling cluelessly with the System Settings, I may have fixed it.

Go to Displays, choose "Scaled", and then select some resolution other than "default". Then, where you chose "Scaled", change back to "Default". This did the trick for me. Immediately after that, the flashes stopped and it's been a couple of weeks now.

arturo174–I followed these steps and went to system settings and found that my display was set to scaled/default. Then I just changed it to "default for display." The flickering stopped. Don't know if I'll have to repeat this action, but it's pretty simple. Try messing with those settings.

By the way, this bug is not exclusive to Photoshop. It happens whenever a custom cursor changes back to a default one. Even some websites (like zappos) can suffer from this.

Hi,

I have the same problem with my brand new iMac 4K, latest version of OS and latest update of Photoshop.

I already contacted Apple and Adobe, but Adobe has no answer for us, and Apple says that it is a software problem, so Adobe has to solve it.

The really unique solution in order not to have the screen flashing black is the one you posted, taken from a comment on a Youtube video: setting the cursor as "precise".

I agree with your prayer: please Adobe and Apple fix this bug!

Tatiana

Hello! I have same problem, but i find temporary solution. Go to System preference ---> Accessibility --> Display ---> Cursor size

and then enlarge size of cursor to second line! It helped me and the screen stops blinking. Good luck!

I have the same problem in Photoshop with 2 separate 4k iMacs (late 2015). Display screen flashing to black with seemingly no rhyme or reason. Some times fine for 15 - 20 minutes, then start flashing a bit, then flashes with each moment. I have spoken with Apple twice, and like others have reported, the representative had me try resetting a few things, then said it must be software related.

However...

I just downloaded a trial version of the Affinity Photo software (which is supposed to be very much like Photoshop), and the flashing black screen problem happened again.

So, am I correct in thinking that it can't be a software issue because it is happening in two different software programs (and one is Adobe and the other is not)?

Or is it more complicated that that?

I do agree with everyone ... it makes if very difficult (and sometimes impossible) to get any work done.

Hoping for a solution soon!

Barbara

iMac 4K Retina, OS X El Capitan 10.11.5

This bug also happens when I am using InVision to create mobile prototypes. When I move my cursor from the inside of the mobile simulator to the outside, the screen flickers for a second. So I agree with you that this is just not an issue with Photoshop. Maybe the problem is really just on the iMac's end.

So, I made my cursor a tad bit bigger, like just past the initial tick mark, and its seemed to have resolved the issue. Not sure whose problem this is, Adobe or Apple, but it definitely is a turn off to buying a 4K. It's supposed to be better, not problematic. Let me know if this works for anyone else

I've had this problem ever since I bought mine, 3 months ago. Nothing that Apple Care suggested seemed to work. Then, while fiddling cluelessly with the System Settings, I may have fixed it.

Go to Displays, choose "Scaled", and then select some resolution other than "default". Then, where you chose "Scaled", change back to "Default". This did the trick for me. Immediately after that, the flashes stopped and it's been a couple of weeks now.

By the way, this bug is not exclusive to Photoshop. It happens whenever a custom cursor changes back to a default one. Even some websites (like zappos) can suffer from this.

Amazing macedotavares

Did anyone got the solution yet??? I've just bought iMac 4k and this is so annoying while working.

I'd change the cursor size but it's just a tempolary solution.... after a few minutes this happen again.

Did Photoshop cc 2017 fixed this bug already? 😢

This problems occur over a year. Surprise that there is no way to solve this yet. 😟

Thanks for posting this. I've been having trouble with this as well. I kind of have the feeling, that some things concerning the graphics are glitchy.

Hi Alyoshaname,

Was wondering if you menage to fix the problem.

I having the same issue too.

My screen is flickering with any version of Photoshop on my new iMac (latest 2015)

Thank you

I tried contact Apple and Adobe but they're not gonna do something to fix it. Apple blame Adobe and Adobe blame Apple. I still have this problem too. This was a known issue over a year... *sight*

Really? That's unfair.

It should be nice to know why it is doing it.

Thank you for your reply