On Thu, 4 Oct 2007, kyle cronan wrote: > I think I may have posted this to the wrong list. There wasn't any > response yet on alsa-user, so I'm reposting here. > > Summary: I'm seeing a lot of glitches ever since the built-in software > volume was removed. What was the reason for this change? Softvol > doesn't work nearly as well for me. The changelog refers to PC-Speaker driver not HDA audio driver. I guess, you're seeing another problem. Try to determine exact ALSA version where your configuration fails (if you can - try to determine exact HG (mercurial) revision of the ALSA driver code). Thanks, Jaroslav > ________________ > > Hi everyone, > > I recently updated my media center which is running Fedora devel. It > pulled down a new kernel with updated ALSA drivers for my HDA audio > chip (Intel 82801H + ALC883). > > I use IEC958 output to a pair of studio monitors (good sound with > minimal fuss). The first thing I noticed about the update was that my > software volume control was no longer saving state. It was resetting > to something around 80% every time an app opened the audio device, a > level which, in my setup, is quite loud! Then I saw that in alsamixer > I had no master volume control, not even a PCM control! > > So I started experimented with my settings, and I found that after I > selected "PCM" under "Default Mixer Tracks" in gnome-sound-properties > I had a PCM volume control again (still no master), and apps using > alsa output would once again remember the system volume. Don't know > what that gnome setting actually did, but I've not been able to get it > back to the original state, even when I ctrl-click to deselect "PCM" > in the list. > > However, apps that use legacy OSS output still blast me with nearly > full volume every time. I've also noticed another glitch: using the > volume control applet to adjust my PCM volume, the audio sometimes > skips. If I quickly drag the slider back and forth, it always does. > I'm pretty sure I would have noticed this if it occurred with my > previous kernel (haven't had a chance to test that yet). > > Anyway, looking into this problem, I found the following note in the > changes document at > http://www.alsa-project.org/main/index.php/Changes_v1.0.15rc2_v1.0.15rc3 > > Sound Core > ... > - Remove the built-in software volume control in favour of softvol. > > So, my (main) question is: is there a good reason that the built-in > software volume was removed? I didn't find anything about it in the > archives for this list or -devel. I'm really not in favor of this > change, because It used to work flawlessly for me, whereas now I'm > running into all these strange problems with my IEC958 output. > > Thanks, > Kyle Cronan > <kyle@xxxxxxx> ----- Jaroslav Kysela <perex@xxxxxxx> Linux Kernel Sound Maintainer ALSA Project, SUSE Labs _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
