I can't play videos or songs at Myspace but at YouTube I can see videos but no sound?? I've installed Adobe Flash Player plugin version 10 and ubuntu-restricted-extras. I use Ubuntu 9.04. Any solution? I can hear windows media streaming from my local radio station.

^Flash player there in the list of plugins in firefox?

32bit/64bit flash? VERY important. Basically 64bit/32bit OS?

"Adobe Flash Player plugin version 10

This package will download the Flash Player from Adobe. It is a
Netscape/Mozilla type plugin. Any browser based on Netscape or Mozilla can use the Flash plugin. This package officially supports the following browsers:

Firefox 2.x, Firefox 3.x, SeaMonkey 1.11"

What version of FF? I don't know if it makes a difference at all, but I'm using 3.5, but I am also using nswrapperplugin.

32-bit and Firefox 3.0.13.

check your stuff for sound, make sure all applications can play sound, such as xmms2 or games (wine...) Are you using ALSA for sound (I know this may sound dumb, but the new OSSv4 is out and it's pretty good), check the alsa libs if you are.

Try the following:

rm ~/.adobe ~/.macromedia

Reboot. Check your sound with Flash on youtube or whereever.

HTH

Why should I remove this?

Yeah mine's blank... I don't think removing that would fix his problems. It might be a problem with FF and audio... That's why I asked to check other sound devices... Do you get audio ever, ie it cuts out and won't start again, or is it something that never starts?

So your sound with Flash in Firefox works again, because this is the topic of this thread, isn't it? Firefox doesn't play the sound of flash if these directories are present when some daemon (haven't figured out which one yet) starts.

This is what worked for me after fiddling around lot, reading lots of posts and related stuff. I tried several approaches and came to this after doing some diffs of the config when it worked and when not.

I wrote it by keeping in mind that you've surely enough checked your general sound and it works, except for Flash in Firefox. If this isn't true, then go check the basic sound config of your system first of course.

Well it's not about thinking, it's about testing, and I did this.
Of course, therefore my reply, FF related.

Well, many thanks for still helping me.

At the moment no sound at all works. I tried to change to Pulseaudio but it didn't work out. When I go to Alsamixer it's just Pulseaudio and I suppose the only way to change back to either OSS or Alsa is by changing code in asound.conf? But I already tried OSS and Alsa (then it worked with MP3 and WMA but not flash).

At the moment Flash still just work at YouTube for viewing not listening and websites like Myspace and Vimeo doesn't work at all.

At the moment I use my windows laptop when I see videos and for listening. I'm so attached to my Ubuntu, though theses problems, I eagerly try to avoid reboot to windows.

I'm not so familiar with sound devices in Linux.