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Youtube works fine in Windows, but in Ubuntu GNOME 15.10 video is very not smooth. Framerate drops, the lag is very visible when things move on the screen.

  • both Firefox and Chromium have this issue, although the latter is slightly better;
  • Ubuntu GNOME 16.04 booted from a USB stick acted the same way;
  • I have an AMD video card;
  • I tried both the open and fglrx drivers;
  • I have "Resticted extras" installed;
  • Youtube itself says my browser supports everything;
  • Vlc plays these vids very nice and smoothly.
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  • Are you using the flash plugin or html5 player?
    – xangua
    Apr 23, 2016 at 15:58
  • As far as I can understand, it's HTML5.
    – Ivan
    Apr 23, 2016 at 16:04

1 Answer 1

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To fix this I went to Firefox about:config menu and set layers.acceleration.force-enabled to true.

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  • It's weird, I got the problem in a way that there is wave in youtube video when the scence is fast (like action), I change the value you metion to false and it's better.
    – Van Tr
    Jul 21, 2019 at 17:54

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