MUTE is reversed in software. TVTIME, bt878,
 

Crazy thing... I put in the ol' tv card and there was no audio. If I hit mute, I can hear audio. If I 'un=mute' it, I can't hear anything. It's reversed!... So what this does, is every time you close the application, I can hear the last tv station's audio. Also, when I'm booting up, the driver gets loaded, and its supposed to be in mute mode, but I can hear audio...

Would this be a detection issue? My card is a Hauppauge bt878 card. I'm completely new at this stuff... so if I did need to select another driver, how would I go about doing that? there doesn't seem to be a place to do this now that it's already been configured the first time through. if not... any ideas?

Have tried mythtv? Have you gotten sound working with mythtv via your Hauppauge bt878 card?

Wow... I've spend many hours last night trying to get myth up and running, but there doesnt seem to be a difinitive approach. Every thread seems to have their own technique... however, it generally encompasses - install myth, install mysql, add mysql database for mythtv, configure mythtv, ...have fun.

the technicals in between is what's spoofing me. I'll search around the net/LQ and try and find a fool proof method, unless someone can recommend a proper method.

Mike,
I'm pretty new to this linux stuff too - like it better than windows so far . . . but users pretty much need a brain to get stuff working sometimes. Keep plugging away. The main 'problem' (if you will) is that there are so many distros and hardware configurations - and highly customizable. So, unlike windows, systems are not universal. On the flip side this is a really good thing - we don't have a corporation watching our every move and dictating what we can do with our boxes . . . and we don't have to worry about those nasty windows viruses - haha

So anyway, enough of my ranting, what problems are you having with MythTV?

I've been in the process of installing mythtv for about a month now . . . and I finally had a breakthrough with my sound last night. Everything finally works - including live tv (but the sound still cracks). My next step is to pull and HD signal, but that is another beast all in itself I think.

Unfortunately there isn't very much forum information outside of the wikis to help with Mythtv . . . and a couple threads that I started are heavily viewed - but no responses.

So I'll keep on eye out here and try to help you if you post some info / problems. I am pretty frustrated . . . so maybe we can get a solid thread going to demystify mythtv. But as they say - it will be the blind leading the blind (or maybe in computer speak: a noob leading a noob - haha). Good luck!

I know it is insane to reply to a thread 10 years old; but this is the most pertinent google result to the problem. After years of intermittently trying to fix this issue myself, I finally found the solution! If I was still searching, someone else might be too.

Some capture cards are wired wrong! The fix is to add the file /etc/modprobe.d/bttv.conf with the following contents:

# TV
alias char-major-81 bttv
options bttv reverse_mute=1

You can see if this fix will work by running
rmmod bttv
modprobe bttv reverse_mute=1