<div dir="ltr">I don't like the mismatch between audio of nvidia and kernel module of intel. There isn't a nvidia audio module? <br>try this: <br><br>grep -i snd /usr/src/linux/.config<br><br>I would rather go for an older nvidia audio module than an intel one. <br>
<br>Also, if you try to play the movie with mplayer from command line it will show you what it uses as well (besides lsmod).<br><br>Did you configured module autoload? <br><em>etc</em>/<em>modules</em>.<em>autoload</em>.<em>d</em>/<em>kernel</em>-<em>2.6</em><br>
<br><div class="gmail_quote">On Sat, Feb 6, 2010 at 11:47 PM, shimi <span dir="ltr"><<a href="mailto:linux-il@shimi.net">linux-il@shimi.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
All,<br>
<br>
I've recently purchased a new machine, with an ASUS M4N78 PRO<br>
motherboard and have installed Gentoo Linux on it with Kernel 2.6.31<br>
(upgraded later to 2.6.32 - no change).<br>
<br>
Following is lspci output of Audio controllers:<br>
<br>
$ /usr/sbin/lspci | grep Audio<br>
00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S<br>
High Definition Audio (rev a1)<br>
02:00.1 Audio device: ATI Technologies Inc R700 Audio Device [Radeon<br>
HD 4000 Series]<br>
<br>
I believe the first device is my onboard audio card, and the second<br>
device is the embedded audio out on the HDMI output of my ATI HD4670<br>
video card.<br>
<br>
Therefore, I am attaching the -v version of lspci on that specific card:<br>
<br>
00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S<br>
High Definition Audio (rev a1)<br>
Subsystem: ASUSTeK Computer Inc. Device 836c<br>
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21<br>
Memory at fbe78000 (32-bit, non-prefetchable) [size=16K]<br>
Capabilities: [44] Power Management version 2<br>
Kernel driver in use: HDA Intel<br>
Kernel modules: snd-hda-intel<br>
<br>
Now to my problem...<br>
<br>
Everything seems to be working right. I can hear audio on all channels<br>
(tried a 5.1 movie...), except for the echo output of the Microphone<br>
input which I use to hear Television audio on my computer audio<br>
system. At first I thought that I damaged the audio cable (it worked<br>
on the old machine...), have bad motherboard connector or any other<br>
similar thing, but after plugging in an mp3 player with a different<br>
cable and still not even a hum, eventually I tried to *record* into a<br>
file and then playback the result. To my surprise, I heard what was<br>
earlier played into the Mic jack. I double/triple/quadruple checked in<br>
alsamixer that all inputs are at maximum volume, including on the<br>
capture device, and all are UNmuted, plus tried flipping between the<br>
various "capture source"s to no avail.<br>
<br>
After some more digging, googling et al, I've got to:<br>
/usr/src/linux-`uname -r`/Documentation/sound/alsa/HD-Audio.txt<br>
<br>
Specifically to the part of 'Model Option' as a possible culprit;<br>
However, my specific model does not appear on the list, as far as I<br>
could have seen; So I tried being generic, and added:<br>
<br>
options snd_hda_intel model=6stack-digout bdl_pos_adj=32 single_cmd=1<br>
<br>
To my /etc/modprobe.d/alsa.conf<br>
<br>
My questions, if you got so far, are:<br>
<br>
1. How do I know I did it right and that the module actually processed<br>
these variables? The reason I am worried is because I still see the<br>
error: "hda-intel: IRQ timing workaround is activated for card #1.<br>
Suggest a bigger bdl_pos_adj." in dmesg.<br>
2. Any hints on how to progress on this? Or should I get my old SB<br>
Live 5.1 sound card and override the problem altogether...<br>
<br>
Thanks in advance,<br>
<br>
-- Shimi<br>
<br>
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</blockquote></div><br></div>