On Sun, Jun 29, 2008 at 03:29:01PM -0700, Rob Lytle wrote: > Rob Lytle writes: > > > Using audioctl and mixerctl I just experimented until I got > > settings that workied, then put them in a file sourced upon > > logon. Very simple hack. > > Not really a hack. It's documented in mixerctl.conf(5). > > Hi Deanna, > > The documentation is really confusing. "man audioctl.conf" doesn't > exist, so I'm not sure if rc calls it like mixerctl.conf. > "man rc" has no mention of such things. > > Also I imagine every HDA codec is going to have different settings, > If we would try to come up with sample config files, > other people could test their own sound cards or chips and contribute. > These HDA codecs are becoming universal now. > > But at least you can use the -a flag to list the tunables. However, I > have no idea what some of the variables do. Who > would have thought that the laptop internal mic was "mic2" and the > line input was "mic." You just have to experiment. > > I need to look up the data sheet for my codec. 0 to 255 seems like > not much resolution for volume. Plus, as I said before, > the mixer controls don't do anything until you get right near the top. > They need to be on a log scale. Most audio > potentiometers (volume controls) come in log versions. > > If the weather ever gets below 90F here and my laptop stops > overheating, I might try writing something up on all of this. > Until then the fan is on me and not the laptop.
well, read the HDA spec. then look at the datasheet for your card and see how they mesh. imo, the main problem with HDA is that mixer(4) was designed for relatively simple mixers. HDA allows complex routing/shaping. there could be several amps that all affect the output volume on a single jack. however, mixer(4) was designed for 1 mixer control per hardware control. thus, controls like outputs.master, a single control that affects all output volume, are difficult to implement in all devices. although, a possible solution is being worked on, slowly. not sure when that will be ready for commit though. I'm guessing perhaps the volume issue you are experiencing is that you need to control multiple amps to get the full output, but the driver is only affecting some of the amps and leaving the rest at relatively low settings. -- [EMAIL PROTECTED] SDF Public Access UNIX System - http://sdf.lonestar.org
