linux/sound
Hui Wang 3f74249057 ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged
We found a Mic detection issue on many Lenovo laptops, those laptops
belong to differnt models and they have different audio design like
internal mic connects to the codec or PCH, they all have this problem,
the problem is if plugging a headset before powerup/reboot the
machine, after booting up, the headphone could be detected but Mic
couldn't. If we plug out and plug in the headset, both headphone and
Mic could be detected then.

Through debugging we found the codec on those laptops are same, it is
alc257, and if we don't disable the 3k pulldown in alc256_shutup(),
the issue will be fixed. So far there is no pop noise or power
consumption regression on those laptops after this change.

Cc: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20200914065118.19238-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-09-21 10:25:16 +02:00
..
ac97
aoa treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
arm ASoC: arm: use asoc_rtd_to_cpu() / asoc_rtd_to_codec() macro for DAI pointer 2020-03-27 14:44:56 +00:00
atmel ALSA: atmel: Remove invalid "fall through" comments 2020-07-09 19:10:11 +02:00
core Merge branch 'topic/tasklet-convert' into for-linus 2020-09-02 13:32:06 +02:00
drivers sound updates for 5.9 2020-08-06 14:27:31 -07:00
firewire Merge branch 'topic/tasklet-convert' into for-linus 2020-09-02 13:32:06 +02:00
hda ALSA: hda: use consistent HDAudio spelling in comments/docs 2020-09-02 19:31:32 +02:00
i2c
isa sound fixes for 5.9-rc2 2020-08-21 10:07:54 -07:00
mips
oss ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
parisc
pci ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged 2020-09-21 10:25:16 +02:00
pcmcia ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
ppc ALSA: Replace the word "slave" in vmaster API 2020-07-20 10:10:47 +02:00
sh
soc ASoC: Fixes for v5.9 2020-09-11 18:26:04 +02:00
sparc ALSA: Replace HTTP links with HTTPS ones 2020-07-19 20:49:25 +02:00
spi
synth
usb Merge branch 'topic/tasklet-convert' into for-linus 2020-09-02 13:32:06 +02:00
x86 ALSA: hda: use consistent HDAudio spelling in comments/docs 2020-09-02 19:31:32 +02:00
xen ALSA: xen: Remove superfluous fall through comments 2020-07-09 19:10:37 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c