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authorStefan Binding <sbinding@opensource.cirrus.com>2021-04-26 17:37:49 +0100
committerTakashi Iwai <tiwai@suse.de>2021-04-26 18:45:06 +0200
commit45b14fe200ba0611b6c3874aa5bba584dc979fb9 (patch)
tree9be24068b7a2b874e82e8610499e93d33f8a39e7 /sound/virtio
parent0e853a9c3937caa9f13fdde547d6202f92457c2b (diff)
ALSA: hda/cirrus: Use CS8409 filter to fix abnormal sounds on Bullseye
Cracking noises have been reported on the built-in speaker for certain Bullseye platforms, when volume is > 80%. This issue is caused by the specific combination of Codec and AMP in this platform, and cannot be fixed by the AMP, so indead must be fixed at codec level, by adding attenuation to the volume. Tested on DELL Inspiron-3505, DELL Inspiron-3501, DELL Inspiron-3500 Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com> BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924997 Reported-and-tested-by: You-Sheng Yang <vicamo.yang@canonical.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210426163749.196153-3-vitalyr@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
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