I need to know if anyone has successfully gotten sound to work using the EVGA-GeForce GT 520 video card connected with HDMI to an hd tv on any flavor of linux on any desktop.

It matters not what flavor of linux you used. I just want to know if it works for someone. If so I'll give it another shot but for now I don't think the sound is working in Linux for this card. I would ask nvidia's forums/support but they are down for maintenance.

Basically I was trying to set up a machine to use MythTv and I was hoping to use HDMI to play back video I recorded. I never got to the MythTv set up because I can't get sound even though the video works great.

I maxed out all of the volumes unmuted everything (including on the tv), tried random suggestions from the web, made sure I had the latest alsa, and finally I gave up. Unless I hook up external speakers I'm not going to get sound. BTW - everything seemed to be set up correctly. The video card and sound was being detected properly.

At this point I'm thinking about installing Windows 7 (gasp) on this machine and using Media Player (gasp) for the DVR features. I hear it works fairly well. However, I'm a geek and I want to use MythTv in Linux.

Thanks!

On radeon here. . .

Alsa have some python scripts for setting those hda_intel cards internally and that might benefit you.

Thanks for the response.

Wow that is something I haven't tried. Unfortunately I didn't get much help from the hda analyzer. I thought someone else might benefit from this so here is the link:

http://www.alsa-project.org/main/index.php/HDA_Analyzer

Mostly I just want to know if this card works for someone in Linux. If nobody says it works I'm going to report a problem to nvidia and/or alsa. In the meantime I am buying external speakers which sucks but it's the best I can do. Next time I'll have a little patience before buying the first cheap video card I see I know it's better to check the HCL before buying hardware for Linux. It sure saves a lot of grief.

That's why I suggested it. I have an AMD hda_intel and have fixed things once with those scripts (I turned everything to half volume and enabled everything; then I eliminated noise by trial & error, usually by reducing a volume.

Now I have updated (1 year ago) and can't get mic input. The hda intel looks like some vast jig-saw puzzle with all the parts interconnected :-/.

Distro/version, version of mythTV you are using, have you installed the nVidia closed drivers?

At the moment I'm not ready to install mythTV all of my issues are happening outside of it. From experience I know that it's easier to isolate things before trying to get them to work in a more complicated environment. I have the latest Fedora 17 but I am not tied to it. I try out all kinds of distros all the time. I am using the proprietary nVidia drivers rather than the open source.

In another forum I posted the same question and someone said they got the card working by getting the latest on nVidia. I thought I had already done that when I installed the card but I realized I didn't because the video was working. I think I will give that a shot and then I will laugh at myself for not doing it because it solves most issues I run into.

And here I thought I had updated everything. Duh. I am also going to try the HDMI cable on my other TV hooked to my boxee since I haven't tried that. When I try the update later today I will post a response and hopefully mark this as solved. If not I will post details about my system so I can start debugging.

Thanks for the response!

Eureka it works!!! I needed to update my nvidia drivers. Apparently I hadn't done an update in a while and thought I had. I have no concept of time. Duh.

What I actually did was take the time to do a fresh install on a new bigger and shinier hard drive. I updated fedora then installed nvidia. Initially it didn't work so I had to do this:

alsamixer - unmuted all outputs for digital out

Then I ran this command
aplay -l

and got this output:

card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0


When I ran this command I finally heard sound!!

speaker-test -c 2 -D plughw:0,7

My next problem is getting sound from Fedora to work but I'll figure that out. At the very least I have sound now

Thanks everyone.