<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 21, 2013 at 10:35 AM, Joseph Fry <span dir="ltr"><<a href="mailto:joe@thefrys.com" target="_blank">joe@thefrys.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">>> Perhaps someone can say for certain if the ATI binary drivers are<br>
>> required for audio over HDMI... I would suspect that they might if you<br>
>> see no trace of the audio device on your system.<br>
>><br>
>> One thing you might do is open a terminal and run "dmesg". this will<br>
>> give you the log generated by the kernel as it detects and configures<br>
>> drivers for your system. Scan through it to see if you see any sign<br>
>> that it loaded drivers for ATI audio, HDMI audio, or something like<br>
>> that.<br>
>><br>
>> You might also do an "lspci" and take a look at the output of that to<br>
>> see if the device was even detected.<br>
>><br>
>> There are a ton of tools at your disposal to check things out, however<br>
>> without any experience with your device I can't be sure what the best<br>
>> approach would be. Perhaps someone else can help?<br>
>><br>
>> Personally, I always use the binary drivers from ATI or NVIDIA. While<br>
>> the ATI/AMD drivers are not perfect by any means, they are superior to<br>
>> the open source drivers included in Ubuntu, simply because they have<br>
>> access to information about the hardware that is not provided to open<br>
>> source developers.<br>
>><br>
>> You do run the risk of X not starting, however typically this is<br>
>> easily fixed, and I don't see it happen very frequently, way too many<br>
>> users of those drivers for major issues like that to be ignored. Just<br>
>> make sure your system is fully updated before adding the video<br>
>> drivers... just in case your previous bad experience required a patch.<br>
<br>
><br>
</div><div><div class="h5">> 00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia<br>
> (Intel HDA)<br>
> 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Cedar HDMI Audio<br>
> [Radeon HD 5400/6300 Series]<br>
><br>
> Above are the only two lines detailing "Audio" from "lspci".<br>
><br>
> 14.977248] input: HD-Audio Generic HDMI/DP,pcm=3 as<br>
> /devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1/input10<br>
><br>
> 14.594360] [drm] Radeon Display Connectors<br>
> [ 14.594361] [drm] Connector 0:<br>
> [ 14.594363] [drm] HDMI-A-1<br>
> [ 14.594363] [drm] HPD2<br>
> [ 14.594365] [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c<br>
> 0x644c<br>
> [ 14.594366] [drm] Encoders:<br>
> [ 14.594367] [drm] DFP1: INTERNAL_UNIPHY1<br>
> [ 14.594368] [drm] Connector 1:<br>
> [ 14.594369] [drm] DVI-D-1<br>
> [ 14.594370] [drm] HPD4<br>
> [ 14.594371] [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c<br>
> 0x646c<br>
> [ 14.594372] [drm] Encoders:<br>
> [ 14.594373] [drm] DFP2: INTERNAL_UNIPHY<br>
> [ 14.594373] [drm] Connector 2:<br>
> [ 14.594374] [drm] VGA-1<br>
> [ 14.594376] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c<br>
> 0x643c<br>
> [ 14.594376] [drm] Encoders:<br>
> [ 14.594377] [drm] CRT1: INTERNAL_KLDSCP_DAC1<br>
><br>
> Above is what seems relevant from "dmesg"<br>
><br>
> ATI/AMD proprietary FGLRX graphics driver (post-updates release) is the<br>
> option from "System Settings>additional drivers" is what I leaning toward.<br>
> What do you think?<br>
<br>
</div></div>I wouldn't hesitate to use the FGLRX driver... but if your wary of<br>
doing it, it may not be necessary.<br>
<br>
I found several posts from folks who suggest that support for HDMI<br>
audio in the open source drivers is experimental (in Ubuntu 12.10<br>
anyway) and in order to use it you need to enable it like so:<br>
---<br>
In a terminal run "gksu gedit /etc/default/grub" and add the<br>
"radeon.audio=1" parameter to GRUB_CMDLINE_LINUX_DEFAULT so it looks<br>
something like this:<br>
<br>
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"<br>
<br>
Save the file and run "sudo update-grub."<br>
<br>
Reboot.<br>
---<br>
<div class="HOEnZb"><div class="h5">_______________________________________________<br>
mythtv-users mailing list<br>
<a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
<a href="http://www.mythtv.org/mailman/listinfo/mythtv-users" target="_blank">http://www.mythtv.org/mailman/listinfo/mythtv-users</a></div></div></blockquote><div><br></div><div>Well I took the plunge and installed the FGLRX driver, rebooted and still have a picture, and even a HDMI option in sound settings, but no sound with or without the patch cord. Initially doing the sound test in HDMI was successful, I heard "front right" and "front left". Playing a recording is however mute. Now when I go back into sound settings, none of the options give an audible test, but with the digital option I can see the speakers turn blue when I test either one, but no sound. What can I do now to recover sound?</div>
<div><br></div><div>Daryl</div></div><br></div></div>