From: Daniel T Chen Date: Wed, 25 Nov 2009 23:27:20 +0000 (-0500) Subject: ALSA: hda: Fix max PCM level to 0 dB for Fujitsu-Siemens laptops using CX20549 (Venice) X-Git-Tag: firefly_0821_release~10186^2~1665 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=39369ec38a6530f9bb3e1978642331b9a35eaf2a;p=firefly-linux-kernel-4.4.55.git ALSA: hda: Fix max PCM level to 0 dB for Fujitsu-Siemens laptops using CX20549 (Venice) commit 0b587fc4d35afb1bc0fc3d890084bb14c78372dc upstream. BugLink: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4792 Cristian reported that these models have really bad sound above 6 dB and proposed the original patch. I've updated the comment to reflect this change. Signed-off-by: Daniel T Chen Reported-by: Cristian Klein Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 79afb46a0fbc..e90466745c30 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -1175,9 +1175,10 @@ static int patch_cxt5045(struct hda_codec *codec) 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) + case 0x1734: + /* HP & 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, (0x14 << AC_AMPCAP_OFFSET_SHIFT) |