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    Fullscreen youtube colour artefacting.

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    • L
      lbspht
      last edited by

      Guys, I have Macbook Pro Retina 13 bought in November and I have the same problem but I've spotted it only in Safari in Youtube fullscreen when menu bar hides. Videos from other website seems to be okay. I've downloaded youtube app and in this app everything is okay. I think it is the easiest and quickest solution :)

      1 Reply Last reply Reply Quote -1
      • David SchlachterD
        David Schlachter
        last edited by

        I experience this issue on my 2013 MacBook Air, but not on my 2010 MacBook. Both have the same configuration (the 2010 MacBook runs off a clone of the Air's SSD).

        Nitesh SinghN 1 Reply Last reply Reply Quote 0
        • Nitesh SinghN
          Nitesh Singh
          last edited by

          I see this is a very old issue and I'm still seeing it, El Capitan 10.11.4, Iris Pro 5200. 7 months out, any word on a resolution?

          1 Reply Last reply Reply Quote 0
          • B
            benfowler
            last edited by benfowler


            There is 1 easy hack to avoid this issue.

            Put the mouse curser onto the youtube / netflix video scroll bar at the bottom of the screen.
            The issue seems to arise due to refresh rate at full screen video in safari.
            Possibly to save battery, safari technology doesnt refresh areas of the screen that have pixels the dont change or similar.
            But when you put the curser over this area, , it does seem to solve the issue .

            ? 1 Reply Last reply Reply Quote 2
            • P
              Poaji
              last edited by

              I'm still having the same issue in OS X El Capitan Version 10.11.3

              1 Reply Last reply Reply Quote 0
              • Nitesh SinghN
                Nitesh Singh @David Schlachter
                last edited by

                @David-Schlachter It seems related to Intel integrated GPUs. Intel/Apple never got around to fixing it on the Intel Mac driver.

                1 Reply Last reply Reply Quote 1
                • S
                  shariffy
                  last edited by

                  What @benfowler said works. Which is mystifying... Anyone has any idea why showing the controls would affect the refresh rate or any other aspect of rendering?

                  Also @f-lux-team: have you considered open-sourcing this project? Someone who's affected and with some coding chops might be able to give more debug info and maybe even submit a patch?

                  Thanks for the great work and for looking into this issue.

                  I 1 Reply Last reply Reply Quote 0
                  • I
                    innerbat @shariffy
                    last edited by

                    @shariffy The bug is not in f.lux, it's in the OS video driver. Open-sourcing would do nothing.

                    lornaL 1 Reply Last reply Reply Quote 0
                    • lornaL
                      lorna @innerbat
                      last edited by

                      This is correct. Thanks for the offer though.

                      @innerbat said:

                      @shariffy The bug is not in f.lux, it's in the OS video driver. Open-sourcing would do nothing.

                      @lorna

                      S 1 Reply Last reply Reply Quote 0
                      • S
                        shariffy @lorna
                        last edited by

                        @lorna Fair enough. Just a wild thought as this is both a long-standing issue and affecting quite a few users.

                        @innerbat I am aware. That said, I doubt Intel and Apple are falling over themselves to fix the issue. My thought was to research how f.lux could detect when the glitch will happen and (offer to) disable itself in those problematic cases. Research which could be easier with access to the code. But thanks for shooting down a benign suggestion within a minute of posting. :) Here's your sticker.

                        1 Reply Last reply Reply Quote 2
                        • I
                          iJudg3u
                          last edited by

                          just to give an update: I still have the same problem with OSX 10.11.4, Safari 9.1 and flux 36.6. Btw moving the mouse does prevent the artefacts from happening, but who wants to do that all the time in fullscreen right? ;)

                          1 Reply Last reply Reply Quote 0
                          • ?
                            A Former User
                            last edited by

                            @lorna any word from the intel guys on this? thanks!

                            1 Reply Last reply Reply Quote 0
                            • K
                              kaicrawf
                              last edited by

                              This post is deleted!
                              1 Reply Last reply Reply Quote 0
                              • ?
                                A Former User
                                last edited by A Former User

                                Hello! I'm having the same problem with artefacting, but in quicktime. If a spot in the video is pure white, and the video is playing with the cursor hidden, then white spots are not tinted, rather pure white. You can see when I start playing the video that the colors brighter on the GIF here.

                                MacBook Pro late 2013

                                1 Reply Last reply Reply Quote 1
                                • K
                                  kypreonyc
                                  last edited by

                                  is anything being done about this or should i just uninstall f.lux?

                                  1 Reply Last reply Reply Quote 0
                                  • ?
                                    A Former User @benfowler
                                    last edited by

                                    This used to be a deal breaker for me too but the workaround suggested by @benfowler is perfect and currently the most convenient way to avoid the issue.


                                    There is 1 easy hack to avoid this issue.

                                    Put the mouse curser onto the youtube / netflix video scroll bar at the bottom of the screen.
                                    The issue seems to arise due to refresh rate at full screen video in safari.
                                    Possibly to save battery, safari technology doesnt refresh areas of the screen that have pixels the dont change or similar.
                                    But when you put the curser over this area, , it does seem to solve the issue .

                                    O 1 Reply Last reply Reply Quote 0
                                    • O
                                      Orico @A Former User
                                      last edited by

                                      @jonsnow When you do that, you are not really in full screen any more, because the video title appears so does the video timeline scroll bar, taking up 10% of the top and 10% of the bottom and adding distractions.

                                      1 Reply Last reply Reply Quote 0
                                      • ?
                                        A Former User
                                        last edited by

                                        I'm experiencing the same issues with fullscreen YouTube videos, I found if you zoom in (cmd, +) it removes/stops the artifacting so you don't need to keep your curser on the timeline blocking some of the video, it doesn't effect the video just makes the playback elements larger. No idea why this works or if it helps with netflix.

                                        1 Reply Last reply Reply Quote 0
                                        • W
                                          wiwi1019
                                          last edited by

                                          I'm on MacBook Air 2015 and have the exact same issue, and I found a simple solution:

                                          Use Firefox at night.

                                          1 Reply Last reply Reply Quote 0
                                          • L
                                            lbspht
                                            last edited by

                                            Hi all, it has to be issue in Safari. It appears in videos from various web pages. I can't believe Apple is doing nothing with this....

                                            1 Reply Last reply Reply Quote 0
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