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Commit 031005f7 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
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ALSA: hda - disable amp override on non-HP machines 



Some machines with Cx5045 seem to have no problem with the volume
over 0dB on NID 0x17.  Disable amp overrides for other devices but HP.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 4a3b6983

sound/pci/hda/patch_conexant.c

+13 −9
Original line number Diff line number Diff line
@@ -1005,7 +1005,9 @@ static int patch_cxt5045(struct hda_codec *codec) 
#endif	

	}



	/*

	switch (codec->subsystem_id >> 16) {

	case 0x103c:

		/* HP laptop has a really bad sound over 0dB on NID 0x17.

		 * Fix max PCM level to 0 dB

		 * (originall it has 0x2b steps with 0dB offset 0x14)

		 */
@@ -1014,6 +1016,8 @@ static int patch_cxt5045(struct hda_codec *codec) 
					  (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) |

					  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |

					  (1 << AC_AMPCAP_MUTE_SHIFT));

		break;

	}



	return 0;

}