Greetings,
I have acer 4315 laptop with realtek alc268 codec. (It also has hda modem which I don't use.)
Looking at the datasheet, the codec has 2 PCM outs, but alsa hda driver with model=acer shows only one.
I want to know if I can enable the 2nd output, and use the external mic jack as a second line out?
I can see that PCM2/LOUT2 connects to HP-OUT (widget 0x15), while PCM1/LOUT1 connects to several pins 0x[14,15,16,18,1A]
How do I go about testing this. Does the hda model=test enable *every* widget and PCM and allow change of pin direction etc?
BTW I want to use the 2nd output as the secondar "preview" (prelisten?) headphone output for my audio player (pytone), while main output is going to speakers.
TIA for any advice
-- Eliot
!!PCI Soundcards installed in the system !!--------------------------------------
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
!!Advanced information - PCI Vendor/Device/Susbsystem ID's !!--------------------------------------------------------
00:1b.0 0403: 8086:284b (rev 03) Subsystem: 1025:0133
!!Modprobe options (Sound related) !!--------------------------------
snd-hda-intel: enable=1 index=0 model=acer snd-atiixp-modem: index=-2 snd-intel8x0m: index=-2 snd-via82xx-modem: index=-2 snd-usb-audio: index=-2 snd-usb-usx2y: index=-2 snd-usb-caiaq: index=-2 snd-cmipci: mpu_port=0x330 fm_port=0x388
!!Loaded sound module options !!--------------------------
!!Module: snd_hda_intel enable : Y,Y,Y,Y,Y,Y,Y,Y enable_msi : 0 id : <NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL> index : 0,-1,-1,-1,-1,-1,-1,-1 model : acer,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL> position_fix : 0,0,0,0,0,0,0,0 power_save : 0 power_save_controller : Y probe_mask : -1,-1,-1,-1,-1,-1,-1,-1 single_cmd : N
!!HDA-Intel Codec information !!--------------------------- --startcollapse--
Codec: Realtek ALC268 Address: 0 Vendor Id: 0x10ec0268 Subsystem Id: 0x10250133 Revision Id: 0x100003 No Modem Function Group found
!!Aplay/Arecord output !!------------
APLAY
**** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog] Subdevices: 0/1 Subdevice #0: subdevice #0
ARECORD
**** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0