Sorry to bump my own thread, but I don't know how else to report bugs to ALSA (I think the bug tracker was abandoned a while back?). I'm willing to do work to diagnose and fix this problem (I'm comfortable building kernels, doing git bisect, using gdb, etc) but I need some guidance about how to start. On Thu, 2015-12-31 at 13:26 -0500, Owen Williams wrote: > Sometime between kernels 3.13 (ubuntu 14.04) and 3.19 (15.04) there was > a regression that caused the mixer elements of the Traktor Audio10 > driver to stop responding to changes to True. I have an older machine > still running 14.04, and if I open alsamixer I can see and interact > with the 8 basic boolean switches: > > numid=3,iface=MIXER,name='Direct Thru Channel A' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=4,iface=MIXER,name='Direct Thru Channel B' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=5,iface=MIXER,name='Direct Thru Channel C' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=6,iface=MIXER,name='Direct Thru Channel D' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=7,iface=MIXER,name='Phono Input Channel A' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=8,iface=MIXER,name='Phono Input Channel B' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=9,iface=MIXER,name='Phono Input Channel C' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > numid=10,iface=MIXER,name='Phono Input Channel D' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > > > or I can use amixer: > amixer -c T10 cset numid=8 on > > > however on my newer machine, with ubuntu 15.04 and 15.10, I am unable > to change the values to true. I am a member of the audio group and I > have also tried with sudo, but when I try to set the value on nothing > happens: > > $ amixer -c T10 cset numid=8 on > numid=8,iface=MIXER,name='Phono Input Channel B' > ; type=BOOLEAN,access=rw------,values=1 > : values=off > > The fun part is, if I connect the card to my mac I can set startup > conditions for these flags. I can set them to true, and when I connect > to my linux machines the flags start up as true. And then, even on the > newer kernel, I can turn them off! But I can't turn them back on > again. > > This sound card is the one I'd like to recommend officially for the > Mixxx DJ project so I'd really like to get to the bottom of this issue. > > > thanks, > Owen Williams > > A Lead Developer, Mixxx.org _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
