This code fixes surround path of asus G75; i'll drop here as a function to be called before codec initialization (I did it in static int patch_vt2002P() ) because I don't know how to detect the notebook and apply it only when needed (I'm new to alsa code).
/* Fixes for Asus G75 subwoofer pin 24 is marked as speaker by bios -- should mark as line pin 33 has a wrong connection to out-of-range nid #3e */ static int fix_asus_g75_subwoofer(struct hda_codec *codec) { /* right connection to pin widget #33 */ hda_nid_t conn[8] = {0x1c}; unsigned int conf; /* Fix connection of pin widget #33 on VT1802p * reported connection (33-1e) refers to non-existent widget #1e which in turn * reports a connection to #1c; we skip nonexistent 1e widget landing directly * on 1c one */ snd_hda_override_conn_list(codec, 0x33, 1, conn);
// pin 24 should be marked as line out pin (not speaker as in bios) // and as AC_JACK_PORT_COMPLEX connection to avoid to be taken by autoparser as a speaker conf = snd_hda_codec_get_pincfg(codec, 0x24); conf = conf & ~AC_DEFCFG_DEVICE; conf = (conf & ~AC_DEFCFG_PORT_CONN) | (AC_JACK_PORT_COMPLEX << AC_DEFCFG_PORT_CONN_SHIFT); snd_hda_codec_set_pincfg(codec, 0x24, conf); // pin 33 should be marked as line out pin (not speaker as in bios) // and as AC_JACK_PORT_COMPLEX, not AC_JACK_PORT_NONE as in bios conf = snd_hda_codec_get_pincfg(codec, 0x33); conf = conf & ~AC_DEFCFG_DEVICE; conf = (conf & ~AC_DEFCFG_PORT_CONN) | (AC_JACK_PORT_COMPLEX << AC_DEFCFG_PORT_CONN_SHIFT); snd_hda_codec_set_pincfg(codec, 0x33, conf);
return 0; }
I guess that the fix on NID #33 should be applied anyways on VT1802p, because by now it connects to a non-existing widget (well, it does exist but is not documented and out of NID range; it should be a stereo-to-mono mixer). BTW, also NID #34, which has 2 connections, has one of them to non-existing nid above; in my case it does no harm :
Widget #24 -- ANALOG STEREO PIN COMPLEX Input from widgets : 14 3e <-- widget 3e is out of range, but connects to 1c widget Connection type : JACK Device : LINE OUT Does NOT support unsolicited response Out amp present In amp NOT present
Ciao
Max