| 1 |
Hi all, |
| 2 |
|
| 3 |
Just got a new Dell Precision M6300, with Intel audio which identifies |
| 4 |
as: |
| 5 |
|
| 6 |
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio |
| 7 |
Controller (rev 02) |
| 8 |
|
| 9 |
and uses the good ol' snd_hda_intel module |
| 10 |
(2.6.25-tuxonice-r4). /etc/modprobe.d/alsa is full of the usual guff: |
| 11 |
|
| 12 |
alias char-major-116 snd |
| 13 |
alias char-major-14 soundcore |
| 14 |
alias snd-card-0 snd-hda-intel |
| 15 |
alias sound-service-0-0 snd-mixer-oss |
| 16 |
alias sound-service-0-1 snd-seq-oss |
| 17 |
alias sound-service-0-3 snd-pcm-oss |
| 18 |
alias sound-service-0-8 snd-seq-oss |
| 19 |
alias sound-service-0-12 snd-pcm-oss |
| 20 |
alias /dev/mixer snd-mixer-oss |
| 21 |
alias /dev/dsp snd-pcm-oss |
| 22 |
alias /dev/midi snd-seq-oss |
| 23 |
options snd cards_limit=1 |
| 24 |
|
| 25 |
Now to the problems: The Gnome volume control app |
| 26 |
(gnome-volume-control) doesn't always show all mixers, nor does alsa |
| 27 |
restore the mixer settings the same. gnome-volume-control starts in |
| 28 |
various ways, the most common like this: |
| 29 |
|
| 30 |
1: |
| 31 |
Master vol |
| 32 |
Front vol (muted) |
| 33 |
no PCM fader |
| 34 |
|
| 35 |
2: |
| 36 |
Master vol |
| 37 |
Front vol (muted) |
| 38 |
PCM fader present |
| 39 |
|
| 40 |
The problem with the first instance, is that I use the PCM volume as a |
| 41 |
"master" because it's the only channel that controls both the headphones |
| 42 |
and the front speakers. If I remove and then add the applet, the |
| 43 |
correct faders usually (but not always) appear. |
| 44 |
|
| 45 |
The second problem I have, is that when changing the volume level using |
| 46 |
a stereo slider, the stereo "lock" keeps unlocking, and I end up |
| 47 |
changing one channel only. This can happen immediatly, so it is not |
| 48 |
possible to change both channels together, or only occasionally. |
| 49 |
|
| 50 |
And the third problem, is that the media volume hotkeys (those extra |
| 51 |
keys labelled mute, play, pause, etc) only seem to change the channel |
| 52 |
named "Master", and not a channel of my choosing (Master is only good |
| 53 |
for the built-in speakers, not the headphone or digital outputs). |
| 54 |
|
| 55 |
I've played with various options in /etc/conf.d/alsasound and other misc |
| 56 |
things, but I can't seem to make a difference. I never had this problem |
| 57 |
with my last ~x86 laptop, but it had different hw. |
| 58 |
|
| 59 |
thanks for any tips! |
| 60 |
-- |
| 61 |
Iain Buchanan <iaindb at netspace dot net dot au> |
| 62 |
|
| 63 |
Einstein argued that there must be simplified explanations of nature, because |
| 64 |
God is not capricious or arbitrary. No such faith comforts the software |
| 65 |
engineer. |
| 66 |
- Fred Brooks, Jr. |
| 67 |
|
| 68 |
-- |
| 69 |
gentoo-user@l.g.o mailing list |
Archives