youtube no video but has audio

[thefortunecookieguy]

i am banging my head against the wall on this. wanting to view a some instructional videos on youtube but all i get is the audio, i have researched this problem and the issue seems to be with the version of the flash player. i have installed the newest version, installed it uninstalled it  and installed it again, have tried it in both explorer and chrome and have the same problem.

been doing this for a couple of days now, sometimes it work and most of the time it doesnt. any ideas???? HEEEEEEELLLLLLLLLLPPPPPPPPPP!

[C_F_McBlob]

Do you ever see a "green screen" in place of the video?

[thefortunecookieguy]

no, its weird, some of the videos work and some don't. i have seen some forums that suggest turing off the hardware accelertion, but that doesn't seem to work. others have said to clear the browing history, which i do and sometimes it works.  seems like while this problem isn't common, it is out there, lots of frustrated folks like myself. seem like we should find a fix for this.

[pwillener · Accepted solution]

Try updating your graphics driver: http://forums.adobe.com/thread/945765

[PjInOH]

What if you append at the end of the video URL:

  &html5=0

or

  &html5=1

0 Should Force Flash, while 1 Will Do HTML5 / WebM

Does that do anything?

I had on and off trouble playing some YT vids for a while until I finally installed a WebM thingy for Windows from the WebM Project site. When this problem was happening, I noticed the YouTube URLs were secure (https). I deleted all my cookies (including site preference ones) and so far, my YT visits are now just http. In addition, I just came across my first HTML5 YT video a while ago and it played just fine.

I also forced that video to play it via Flash by appending "&html5=0". (It already had it with "&html5=1". I suppose it would have played the video with Flash if I cut off the "&html5=1" part of the URL.)

Note: I never could play YT videos in Full-Screen mode with "Temporal Anti-Aliasing" checked. It is not the default setting for this video card, anyway.

Pj (IE9, Win7-64)

Graphics Card: 

  Display adapter type: ATI Radeon HD 3400 Series

Total available graphics memory: 3323 MB
        Dedicated graphics memory:   512 MB
          Dedicated system memory:       0 MB
              Shared system memory:  2811 MB

    Display adapter driver version:  8.850.0.0
          Primary monitor resolution: 1,920 x 1,080
                           DirectX version:  DirectX 10

[thefortunecookieguy]

i have tried all the suggestions above and while they do work for a time, everyonce in a while i will get the error.  have to go into chrome or ie and clear out the cache, restart the computer and it seems to work fine. thanks for all your help, seems to be a bug in my system somewhere.

[PjInOH]

Oh, good grief.  Just when I thought I had it fixed, the 'Adobe Flash' error message comes up within the YouTube video frame.  I right-click on the video, and sure enough, it is not Flash, but that stinking' HTML5 crap again.  I let the video sit there for an hour or so in a Tab (IE9) and then deleted ALL cookies.  I did not shutdown the browser.  I did not close that Tab. 

Upon refresh, the video now plays.  It is back to a Flash video.

YouTube/Goofy must be setting cookies or popping in and out these HTML5 videos at random. One time it is there, another time, not - with the SAME video!

I do not know if I should go with another browser or not.  Certainly, NOT Chrome.  People have gone on for many weeks before a fix is rolled-out.  Besides, Chrome supposedly is the closest thing to spyware than other browsers, yes/no?