<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">2014-02-11 5:28 GMT+08:00 David Henningsson <span dir="ltr"><<a href="mailto:david.henningsson@canonical.com" target="_blank">david.henningsson@canonical.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Are you ok if I push this one to master (just this one, not the chmap<br>
API one)? I was hoping for a review but it seems nobody reviewed before<br>
freeze time and I was on parental leave so missed the freeze date.<br>
<br>
I just think it'll help quite a few people with laptop subwoofers so<br>
would be good to have support for it.<br></blockquote><div><br></div><div>Is this 2.1 profile only used for the sonic master external subwoofer which connect through a Proprietary jack of asus notebook using alc66x codec (6-channels)? <br>
<br></div><div>How about those internal subwoofer of other asus notebook (e.g. g75vw using vt1802 4channel) ?<br></div><div><br><a href="https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1274401">https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1274401</a><br>
</div><div><br></div>the headphone and internal speaker have to share the PCM playback volume control while the subwoofer use it own volume control<br><br><br>><br>
> +[Mapping analog-surround-21]<br>
> +device-strings = surround21:%f surround40:%f<br>
> +channel-map = front-left,front-right,lfe,lfe<br>
> +paths-output = analog-output analog-output-lineout analog-output-speaker analog-output-desktop-speaker<br>
> +priority = 8<br>
> +direction = output<br>
> +<br><br></div><div class="gmail_quote">what is the analog-output-desktop-speaker used for ?<br><br></div><div class="gmail_quote">do any desktop really use [Element Desktop Speaker] ?<br></div><br></div><div class="gmail_extra">
those business desktops usually have internal speakers <br><br></div><div class="gmail_extra">sometime the line out and internal speaker share a volume control when four channels codec have three outputs <br><br><a href="https://bugs.freedesktop.org/show_bug.cgi?id=70865">https://bugs.freedesktop.org/show_bug.cgi?id=70865</a><br>
<br></div><div class="gmail_extra">and somethime the driver assign PCM playback volume when the speaker path and line out path share the same audio output even when two channels codec have three volume controls <br><br><a href="https://bugzilla.kernel.org/show_bug.cgi?id=70011">https://bugzilla.kernel.org/show_bug.cgi?id=70011</a><br>
<br></div><div class="gmail_extra">for home desktop, most users does not install internal speaker since there are lots of noisy cooling fans inside the chassis<br></div></div>