YouTube videos often fail to play

  • I see the below error regularly on Youtube. It's been like this for many months. Is it a typical problem on Vivaldi for Mac? 1.16.1183.3 (Official Build) (64-bit)


  • Moderator

    @iarla On some Macs, yes, some videos types will not play if Vivaldi's GPU hardware acceleration is not available on your system. This has been a longstanding issue for which many of us are all still waiting for a fix.

    Youtube videos are often available in several formats. Youtube videos encoded in, say, the vp9 format will play fine even with if hardware acceleration is unavailable; some other formats, such as H.264, will not.

  • @xyzzy thanks, I appreciate the info. I do have a late 2011 MacBook Pro. I've reported the issue as a bug, but I'm sure I'm not the first.

  • @xyzzy Is this being addressed, yet? I'm moving from Chrome to Vivaldi, and I generally like it. However, this problem is going to be an issue since I view a lot of embedded videos or via links.


  • @xyzzy But the same video runs at the same machine (iMac, late 2009) at any other browser (Opera etc.) At all videos are running. But none at facebook and a lot at youtube.

  • Moderator

    I appreciate all of your patience and all reports that you post here. This is a huge problem that has gone on for too long already. However, I don't work for Vivaldi so I have limited insight into what actually goes on behind the scenes. All that I can tell you is that all of the Mac media playback bugs are still open and have a high priority assigned to them. I also do my best to make sure that all critical issues affecting the Vivaldi Mac community don't get forgotten.

  • I was happy after installing the last update. But just for a short while. Now I have the same issue with fb-videos.

  • You can try this flag chrome://flags/#ignore-gpu-blacklist (Vivaldi &/or macOS might get unstable), what I noticed is that for some reason some audio and some video codecs are getting disabled by a GPU backlist.

    Should also note the version of macOS you are using.

  • @iarla i am having the same issue and even if i try to stay updated
    0_1546797772168_Captura de pantalla 2019-01-06 a la(s) 12.51.41.png

    So if anywone knows how or when it will be fixed, we all will be glad to know!

  • Community Manager

    Sorry for the trouble you encountered playing youtube videos. In order to help us fix this issue, we need you to report it us as described here:

  • @MoonDawg said in YouTube videos often fail to play:

    The stats for nerds (right click on the video) list codecs of avc1 / mp4

    Should also mention the version of macOS you are using

    I see the error with macOS 10.14.2

  • Apple released macOS 10.14.3 & security updates for older versions of macOS today.
    Tried the video and it did not play (I do have hardware acceleration disabled to work around a Chromium bug of forcing the dedicated GPU when it works fine with the integrated GPU)

  • @gaelle But how about accepting that we post in apparently wrong groups, and try to read through is all carefully and consider if just posting the bug / problem he suggest that something else is wrong. That what you believe the problem to be stems from not fully understanding the problem. I have had the request moved and deleted, and bluntly, I know the problem and can fix the code - but I have to repeat the "fix" every time I receive a new version of Vivaldi. Yes - I have posted the fix. I don´t know it it fixes it all. I got my video working, but still get the "wrong codec" - and sometime I know the reason. Where to place it - how to report? Very good question. It is not really video you see.


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