I think I have the same problem.You Saved my day Lady!!!!
Thank you Very much... It works... It even happened on my latest 2019 Retina macbook air on macOS Catalina 10.15.4
RIP Steve...
EDIT:Not working again after a restart...
I think I have the same problem.You Saved my day Lady!!!!
Thank you Very much... It works... It even happened on my latest 2019 Retina macbook air on macOS Catalina 10.15.4
RIP Steve...
EDIT:Not working again after a restart...
Any update/follow up?Reported this bug to Apple last week, haven't heard a response yet.
Was like this? I'm on Mojave 10.14.6 and I started to see these red lines but never appearing wile watching video, especially fullscreen video. Although wile I am using other apps (multiple working spaces) it happens sometimes. There was a week I was making my MacBook sleep through the night and waking up in the morning to continue my work (each day). By the end of week these red lines appeared really often. I even had an opportunity to record a video with dozens of times these lines appeared. This is why I think it may be related somehow to a sleep mode and software lags. At first I thought it may be a hardware issue, but stress-tests with GPU/CPU-loads revealed no correlation with these red lines.Same problem on my Macbook Pro 13 2015. Flickering screen on fullscreen youtube in Safari. I have red flickering vertical line more on the left side of screen. No issues on fullscreen videos in Chrome and Firefox. Issue appeared after updating to MacOS 10.14.6.
Any update/follow up?
I think I have this problem on my MacBook Pro 13" 2015 (i5 2.9 GHz, 16gb 1867 MHz, 128gb SSD, Iris Graphics 6100). I'm on Mojave 10.14.6, anybody know if really fixed this on Catalina 10.15.X ?
Do you have a video or a photo showing the problem you had? I didn't want to have to upgrade to Catalina, due to 32 bit apps not working.I have the same device and all graphical issues has been fixed since I upgraded to Catalina.
Lol this still works in Big Sur, thanks!Dunno if this post of mine helps anyone but I updated my MBP (early 2015") from Sierra to High Sierra 10.13.6 and short while after that noticed that when watching a movie in iTunes the screen would flicker constantly from normal to brighter screen (kinda hard to explain...). I did some research and discovered that turning off subtitles helped a bit to minimize the flicker but it was still there. Also not using fullscreen helped. But as I wanted to use subtitles and fullscreen while watching movies, I continued seeking answers to this effin' annoying bug and FINALLY I FOUND A SOLUTION: all I had to do was to go to Settings - Accessibility - Display -> Change the size of the cursor bigger! After that little change, the flickering stopped
This only works until restart. But holy **** I just got my Mac back from an entire logic board repair (on warranty thank god) for this issue, but it wasn’t solved and I’m kinda furious this just happensThe trick with the coursor really works, and I have another solution tried by me: Disable the auto-brightness for the screen. I know that it’s not a Pleasant solution, but that happens because of the ambient-light senzor. You can try to cover the senzor (near camera), and you will see that the flickering starts at that moment. So my conclusion is, there’s a software issue with that sensor.
Your piece of advice worked.Dunno if this post of mine helps anyone but I updated my MBP (early 2015") from Sierra to High Sierra 10.13.6 and short while after that noticed that when watching a movie in iTunes the screen would flicker constantly from normal to brighter screen (kinda hard to explain...). I did some research and discovered that turning off subtitles helped a bit to minimize the flicker but it was still there. Also not using fullscreen helped. But as I wanted to use subtitles and fullscreen while watching movies, I continued seeking answers to this effin' annoying bug and FINALLY I FOUND A SOLUTION: all I had to do was to go to Settings - Accessibility - Display -> Change the size of the cursor bigger! After that little change, the flickering stopped
Thanks for the compliment but I didn't figure it out myself, I just did some tedious Googling with many different search phrases (all relating to flickering in mac OS) and luckily came across a link that had the right solution.
Kinda annoying that Apple hasn't fixed this issue if it occurs in Catalina too :/