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-   -   Firefox flash videos no longer play sound (http://www.linuxquestions.org/questions/linux-software-2/firefox-flash-videos-no-longer-play-sound-746828/)

Steve W 08-11-2009 05:26 PM

Firefox flash videos no longer play sound
 
I'm running Ubuntu 8.10 - Intrepid.

I did an update (from the Update Manager) which was meant to update the Flash plug-in for Firefox. However, it started downloading something from Adobe's site (really slowly - or stalled) and after a while I terminated it.

Now, videos on Youtube play, but without sound. If I play the actual video from /tmp, it is fine, so it is the Firefox plug-in that must be broken.

I tried to uninstall the plug-in, but it tells me it is "unable to get an exclusive lock". I go into a shell and do "sudo dpkg --configure -a" and get "Status database area is locked by another process".

Running out of options here. Should I uninstall Firefox completely, then download and install it from Mozilla's site? Considering I'm running Intrepid, I would be installing a different version from that supplied with Intrepid.

Surely I can fix this minor annoyance without such drastic measures?

Steve

pljvaldez 08-11-2009 06:10 PM

Sometimes my Debian box keeps a process running in the background that I have to kill (usually mine is mplayer) after which the same thing happens. You can see what processes are running with the command ps aux. Make sure all instances of firefox are closed and that anything that resembles a flash player is also closed.

Steve W 08-12-2009 04:05 AM

Thanks for the tip. However, after I shut my PC down and went to bed, the next day I booted up and did the sudo dpkg --configure -a (before attempting to play any Flash videos), and it immediately downloaded and installed a fresh copy of Flash. It all works now.

So I guess all it needed was a hard reboot to officially kill all processes. Last night, I did log out and log in again, thinking that would terminate all processes. Guess it doesn't.

I thought I had waved goodbye to having to restart the PC for every little thing, when I junked Windows. I suppose there are still times when a hard reset of a Linux box is necessary too.

Anyway, all working now. Thanks again.

Steve

pljvaldez 08-12-2009 11:37 AM

Quote:

Originally Posted by Steve W (Post 3640155)
I thought I had waved goodbye to having to restart the PC for every little thing, when I junked Windows. I suppose there are still times when a hard reset of a Linux box is necessary too.

I've never had the need for a hard reboot. But you have to learn to use tools like ps and lsof to figure out what program is stuck. Then you can kill that process.

Once on my box, the X-window system locked up and I couldn't do anything. So I used ssh from my wife's XP box and restarted X. Everything was fine and I didn't have to reboot. The only time I reboot is when I install kernel updates.


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