Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Every html5 video I try to play online plays at double/1.5x speed (very useful when trying to fastforward through a video, not great otherwise). I can slow it down to half speed (e.g. on YouTube HTML5 player), but can't get it back to normal.

The weirdest part is that it's not just one browser: it's every browser on my computer. (and clearing cache, etc doesn't really help). Flash video still works fine.

I'm using Ubuntu 12.04 (specifically Lubuntu, but I'm guessing it doesn't make a difference).

share|improve this question

Took me days to figure out the issue, but basically pulseaudio can get screwed up and somehow cause all html5 video to go wonky.

Easy fix:

  1. Stop pulseaudio:

    killall pulseaudio (or) pulseaudio -k

  2. Restart pulseaudio

    go to Run (Alt+F2) and type pulseaudio (or run pulseaudio in a terminal)

And this weird error will magically be fixed.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.