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Commit 8f0f5ff6 authored by Daniel T Chen's avatar Daniel T Chen Committed by Takashi Iwai
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ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice) 

BugLink: https://launchpad.net/bugs/541802



The OR's hardware distorts at PCM 100% because it does not correspond to
0 dB. Fix this in patch_cxt5045() for all Packard Bell models.

Reported-by: Valombre
Cc: <stable@kernel.org>
Signed-off-by: default avatarDaniel T Chen <crimsun@ubuntu.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 231f50bc

sound/pci/hda/patch_conexant.c

+3 −2
Original line number Diff line number Diff line
@@ -1195,9 +1195,10 @@ static int patch_cxt5045(struct hda_codec *codec) 


	switch (codec->subsystem_id >> 16) {

	case 0x103c:

	case 0x1631:

	case 0x1734:

		/* HP & Fujitsu-Siemens laptops have really bad sound over 0dB

		 * on NID 0x17. Fix max PCM level to 0 dB

		/* HP, Packard Bell, & Fujitsu-Siemens laptops have really bad

		 * sound over 0dB on NID 0x17. Fix max PCM level to 0 dB

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

		 */

		snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,