Strange colors/blue-fringed mouse pointer on full-screen YouTube when f.lux is active

  • Exactly the same issue, I now leave my mouse cursor on youtube pause button on fullscreen to avoid it. does the same too, but you can move the button bar just below the screen and hide your mouse cursor there

    MacBook Pro (Retina, 13-inch, End 2014)
    Intel Iris Pro 1536 MB
    f.lux 36.3.

  • What we're seeing is this is due to the integrated card from Intel, so:

    Some people may be able to fix this by locking the discrete card (via and using that for video.

    We are noticing that if a video is re-encoded with Quicktime the problem does not appear, but Youtube and Netflix appear to have "out of gamut" video that presents this overflow.

    For everyone with a single Intel card, we may be able to do a workaround by drawing a tiny transparent icon over the corner and preventing full hardware acceleration, but I avoid hacks like this until everything else fails!

  • Happening on MacBook (Retina, 12-inch, Early 2015)
    using Intel HD Graphics 5300 1536 MB

    Since it only has a single Intel card, would you be able to provide a workaround for people like me?

    Thanks for making f.lux!

  • Is anyone still seeing this on 10.11? Our test machine is showing that it has improved the problem considerably (sometimes there is still a strange blue glow).

  • @lorna I still see the same blue glow and its still quite distracting.

  • @lorna Definitely not fixed in newest released update. Also, is there a way to update from within flux or do we have to check for new updates periodically, then download and replace the old version?

  • @seajay We have autoupdates but we only push them when we know they are ready to go, so the download link at will always be up to date. So 36.4 is the most updated one, but it hasn't had any change to the video (this is all on Intel). So if you've updated to OS X 10.11 you may see some improvements.

  • @lorna got it. well, I'm on OSX 10.11.1 and flux 36.4 and am not seeing any improvements. :(

  • OK good to know, thank you! They fixed the awful bug that was in darkroom and basically couldn't reproduce the other bug with blue everywhere - there was an improvement on my Macbook Air but it wasn't fully gone. Is there any specific content you can send us (ok to send me a chat) that it always happens on?

  • @lorna It always happens on this YouTube video. (sfw)

  • @lorna oh wait I guess I'm referring to the artifacting and not the blue mouse. I don't notice the blue mouse problem here on this video. should I move my video suggestion thing to another thread that's more about artifacting?

  • No, this is fine for the artifacting trouble. Thanks for the video! (I'm not sure Apple would love having us submit this as the example ha!)

  • @lorna Hahaha yeah, it's just one that I was watching for a research paper and kept getting the artifacting problems.

  • @lorna okay yeah so this video every time gives artifacting as well as the blue mouse bug.

  • This is quite frustrating. I prefer Safari because of the interface and how efficient it seems to be; watching a video in Chrome or Firefox uses up about 70% CPU whereas it is barely noticeable in Safari.

    Flash-based videos are fine but Youtube Center no longer lets me force the player type so I'm basically stuck using a non-preferred browser if I still want to use flux.

    First-world problems I know but still frustrating.

  • updated to El Capitan 10.11.1, the issue still persists. Guess I'll be disabling f.lux when I need to watch fullscreen videos at nighttime. sigh

  • @dsquareddan I am also doing the same. But it is getting tedious to always do so, when I watch a series of tutorials in a row. Any luck fixing this?

  • The same issue I reported and someone did too in another topic.

    I have a MacBook Pro (Retina, 13-inch, Mid 2014) 2,6 GHz Intel Core i5 8 GB 1600 MHz DDR3 Intel Iris 1536 MB
    OSX El Capitan 10.11.1 (beta)

    This only happens with Safari. I watch videos in youtube in nightime with Chrome and it's ok. But already happen to me while watching Netflix through a new mac app (beta) called Smartflix.

  • @herf Is there any chance that you could release the transparent icon workaround on the forums until the driver is fixed? I'd much rather lose some battery life than be unable to watch videos in fullscreen. I'm using an early 2014 MacBook Air so the Intel HD Graphics 5000 is my only video card.

  • I also have the issue on all hardware accelerated video.
    I am using Safari Version 9.0.1 (11601.2.7.2) on OSX 10.11.1
    Computer is a mid-2013 MacBook Air with HD5000.

    I've had this for a really long time now, I think forcing the hardware acceleration off is necessary until there is a "good" fix for it. As soon as I move the mouse or exit fullscreen, everything is normal. But I can't or rather don't want to constantly keep moving the mouse through videos or streams (It happens on live streams, too - for example)

  • this issue is not happen in chrome!

  • I can do the overlay in Chrome (where it doesn't help) but in Safari it creates a whole new desktop (fullscreen app through Mission Control) and is quite intent on making that the only app. It might be possible with a Safari extension, but it wasn't as easy as I thought!

    El Capitan has a new splitscreen view...probably wouldn't help but someone could try it. :)

  • Also if you're seeing this on Youtube or somewhere we can test, please post a link.

    This stopped failing on 10.11.1 on our Macbook Air (HD5000).

  • I still have the issue with 36.4 on El Capitan 10.11.1 with my MacBook Air 11" 2015. This is a video I just watched the following video, you can start at 1:00 and as soon as you stop moving the mouse, the artifacts appear.

  • Same issue here : MBP 13" mid 2015 osx El Capitan 10.11.1 using Safari, however, i dont have any blue fringed blue color on my mouse.
    I really got used with f.lux colors at night, i can't disable it only for few minutes to watch a full screen video
    So, the only way i found to avoid this bug is to let my mouse cursor on the the play button of youtube.

  • @herf Still happening on my Macbook Air (HD4000) w/ 10.11.1. seajay's youtube link earlier is a perfect example because of the white background right at the start.

  • Hi macbook air core i7 intel hd 5000 here and with El capitan 10.11.2 The last update i've just did the blue glow is here before i had no problem.

    So sadly i decided to uninstall Flux 'cause the blue glow was very very annoying.

    I hope you guys can solve it!

  • Same here. Macbook Air 13, 2013, HD 5000. Still no fix.

  • Macbook Pro Retina Mid 2014 13". Intel Iris 1536MB graphics.. Having the issue as others have reported.

    Very obvious on this video

    It's been months since this thread was started.. is there still no fix?


  • This happens to me on this video (while in full screen), can be seen at around the 4:20 mark
    I can confirm that it does not happen with Chrome, only Safari. I'm on 10.11.3 Beta (15D9c), MacBook Pro (Retina, 13-inch, Mid 2014)

  • This is happening with Netflix too trough Safari (of course)

  • This post is deleted!

  • This post is deleted!

  • Deleted off topic posts, please keep it related to reporting bugs.

  • I have this problem as well, at least since the summer of 2015 but probably longer. However, closing flux doesn't help me. Tried closing it and rebooting Safari without flux but I still got this problem.

  • I found that when I activate (and then deactivate if I want to) another of my extensions I don't get the overlay colour disruptions when I go to full screen. (Limited testing has been done.)
    EDIT: Seems to work ok on youtube, not on netflix.

  • Same problem on full screen youtube videos when I don't move the mouse for a few seconds.

    MacBook Pro (Retina, 13-inch, Mid 2014)
    Intel Iris 1536 MB

    El Capitan 10.11.3

  • Hello, this is happening to me too, MacBook Air (13-inch, Mid 2012) with Intel HD Graphics 4000 on OS X 10.11.3 (15D21).

  • Also happening to me:
    MacBook Pro (Retina, 13-inch, Mid 2014) Graphics: Intel Iris 1536 MB
    El Capitan 10.11.4 Beta (15E27e)

  • It seems it was fixed in the latest (today) update?! At least YouTube is ok at this moment.

  • @Adrián-Mihálko Not for me (MacBook Pro Retina, 15-inch, Mid 2015 with Intel Iris Pro 1536 MB).

  • There seem to be several threads about this so I'll chime in on this one as well. Same problem.

    MacBook Pro (Retina, 13-inch, Early 2015)
    Graphics: Intel Iris Graphics 6100 1536 MB
    OS X El Capitan 10.11.3 (15D21)

    I've just installed the most recent f.lux update (36.6).

  • 8 months and still not fixed...

  • Hi! I've made a topic about this problem in Apple Forums. Please comment there and let them know that they need to pay attention to us!

    And report it through product feedback

    We need to get their attention, wa lot of people need to talk about this problem.

  • did i miss an update? running 36.6 and it is still happening.

  • Same problem, started when I upgraded to El Capitan a couple weeks ago.

    Macbook Pro Retina (Mid 2012) HD 4000
    Safari 9.0.3
    Flux 36.6
    I hadn't updated my OS until El Capitan, I think it came with Lion. I see from the thread this issue has been longstanding but my old OS did not have this issue, the update to El Capitan is definitely when it started for me.

  • @seajay Oh yeah, that's a great video for demonstrating the issue. Seeing more distortion on this than most other vids.

  • Same problem with my MacBook Pro Retina mid-2014 Intel Iris

  • I have the same problem with my MacBook Pro 13" Retina 2015 (running OS X 10.11.3).

  • Me too.
    OSX 10.11.3 (15D21)
    Model Name: MacBook Air
    Model Identifier: MacBookAir6,1
    Processor Name: Intel Core i7
    Processor Speed: 1.7 GHz
    Number of Processors: 1
    Total Number of Cores: 2
    L2 Cache (per Core): 256 KB
    L3 Cache: 4 MB
    Memory: 8 GB
    Boot ROM Version: MBA61.0099.B21
    SMC Version (system): 2.12f143

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