linux/sound
Hui Wang c4cfcf6f42 ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops
We have several Lenovo laptops with the codec alc285, when playing
sound via headphone, we can hear click/pop noise in the headphone,
if we let the headphone share the DAC of NID 0x2 with the speaker,
the noise disappears.

The Lenovo laptops here include P52, P72, X1 yoda2 and X1 carbon.

I have tried to set preferred_dacs and override_conn, but neither of
them worked. Thanks for Kailang, he told me to invalidate the NID 0x3
through override_wcaps.

BugLink: https://bugs.launchpad.net/bugs/1805079
Cc: <stable@vger.kernel.org>
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-11-26 09:28:17 +01:00
..
ac97 ALSA: ac97: fix unbalanced pm_runtime_enable 2018-08-19 18:37:04 +02:00
aoa ALSA: aoa: Convert to using %pOFn instead of device_node.name 2018-09-03 23:41:57 +02:00
arm ASoC: pxa: switch to new ac97 bus support 2018-09-10 18:47:58 +01:00
atmel
core ALSA: control: Fix race between adding and removing a user element 2018-11-24 19:57:51 +01:00
drivers ALSA: opl3: Mark expected switch fall-through 2018-08-08 21:40:14 +02:00
firewire ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size 2018-10-30 12:22:12 +01:00
hda sound updates for 4.20 2018-10-25 09:00:15 -07:00
i2c ALSA: i2c/cs8427: Fix int to char conversion 2018-10-18 15:44:08 +02:00
isa ALSA: wss: Fix invalid snd_free_pages() at error path 2018-11-24 19:55:59 +01:00
mips ALSA: mips: Cleanup indirect PCM helper usages 2018-09-04 12:13:46 +02:00
oss treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
parisc
pci ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops 2018-11-26 09:28:17 +01:00
pcmcia Merge branch 'for-linus' into topic/virmidi 2018-07-29 22:39:29 +02:00
ppc powerpc/ps3: Set driver coherent_dma_mask 2018-07-20 12:50:37 +10:00
sh
soc sound updates for 4.20 2018-10-25 09:00:15 -07:00
sparc ALSA: sparc: Fix invalid snd_free_pages() at error path 2018-11-24 19:56:15 +01:00
spi
synth ALSA: synth: Remove empty init and exit 2018-08-03 16:11:53 +02:00
usb ALSA: caiaq: Add fall-through annotation 2018-10-12 09:31:26 +02:00
x86 ALSA: intel_hdmi: Use the new non-cached allocation 2018-08-28 13:56:49 +02:00
xen ALSA: xen-front: Refine indentations and constify snd_pcm_ops 2018-09-20 09:14:52 +02:00
ac97_bus.c
Kconfig ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver 2018-05-16 12:58:36 +02:00
last.c
Makefile ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver 2018-05-16 12:58:36 +02:00
sound_core.c sound: Use octal not symbolic permissions 2018-05-28 11:27:20 +02:00