Re: Re (3): names for sound devices
peasth...@shaw.ca writes: > Incidentally, to my understanding, everything up to "Note by mschiff" > in FAQ026 is obsolete and misleading. I am inclined to delete it so > that the instructions from mschiff take precedence. Any objections? Uhm, I'm changing what the default device is by editing /etc/modprobe.d/alsa-base.conf. If you don't do that, what the default device (i. e. card 0) is seems to depend on in which order the corresponding modules are loaded during booting. This order is not fixed. (Unfortunately, this method usually requires a reboot.) Looking at the faq, it seems to use card numbers to specify which one the default card should be. That probably doesn't work when after rebooting the numbering of the cards has changed. Hm, I'm just seeing that one of my sound cards isn't listed in alsamixer. The module for the invisible card is loaded, so why doesn't the card show up? -- Debian testing iad96 brokenarch -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/87txub1ix2@yun.yagibdah.de
Re (3): names for sound devices
* From: * Date: Mon, 3 Sep 2012 18:02:14 + (UTC) > http://alsa.opensrc.org/FAQ026 Studied that and set the default device accordingly before my original query. FAQ026 can be summarized thus. if you want to assign names to devices such that the names can change arbitrarily with a reboot or replugging of a device, then do as described prior to "Note by mschiff"; else (* you want the names to persist across a reboot or a replug *) do as described following "Note by mschiff". So according to mschiff, a default device is identified unambiguously in this system. Here is a test. peter@dalton:~$ speaker-test -D default speaker-test 1.0.23 Playback device is default Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise Channels count (1) not available for playbacks: Invalid argument Setting of hwparams failed: Invalid argument peter@dalton:~$ "speaker-test -c 2" produces the noise described in the manual. "speaker-test -c 0" and "speaker-test -c 1" produce error messages similare to that above. Any ideas about why channels 0 and 1 are not available? Any ideas about how a channel is related to a device? What good is a default device which lacks a channel? Incidentally, to my understanding, everything up to "Note by mschiff" in FAQ026 is obsolete and misleading. I am inclined to delete it so that the instructions from mschiff take precedence. Any objections? Thanks, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 Bcc: peasthope at shaw.ca http://carnot.yi.org/ "http://members.shaw.ca/peasthope/index.html#Itinerary " -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/171057667.33672.28036@cantor.invalid
