On Thu, 2017-01-05 at 19:12 -0300, Gustavo Duarte wrote: > Hi all, > > We are facing a problem with audio intput (mic), on a laptop with sound > device ALC283. > > When the laptop boots connected to power line, all works fine. > > When the laptop boots without power line connection, sound input doesn't > work. No audio can be recorder, using arecord or qarecord. > > I got the output of "arecord -l" comand in each case. Follwoing are the > results. > > With power line connection: > > **** Lista de CAPTURE dispositivos hardware **** > tarjeta 0: PCH [HDA Intel PCH], dispositivo 0: ALC283 Analog [ALC283 Analog] > Subdispositivos: 1/1 > Subdispositivo #0: subdevice #0 > > > > Without power line connection: > > **** Lista de CAPTURE dispositivos hardware **** > tarjeta 0: PCH [HDA Intel PCH], dispositivo 0: ALC283 Analog [ALC283 Analog] > Subdispositivos: 0/1 > Subdispositivo #0: subdevice #0 > > > As yo can see, the difference is on, Subdispositivos :1/1 (with power line) > and Subdispositivos: 0/1 without power line. > > Anybody can help me resolve this ? > Do you need some additional info ? > > Thanks advance. The problem is at alsa (or hardware) level. I suggest you try reporting the problem to the alsa developers. http://www.alsa-project.org/main/index.php/Bug_Tracking -- Tanu https://www.patreon.com/tanuk
