linux/sound
Marios Levogiannis 9bfa7b3634 ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS
Set microphone pins 0x18 (rear) and 0x19 (front) to VREF_50 to fix the
microphone noise on ASUS TUF B550M-PLUS which uses the ALCS1200A codec.
The initial value was VREF_80.

The same issue is also present on Windows using both the default Windows
driver and all tested Realtek drivers before version 6.0.9049.1. Comparing
Realtek driver 6.0.9049.1 (the first one without the microphone noise) to
Realtek driver 6.0.9047.1 (the last one with the microphone noise)
revealed that the fix is the result of setting pins 0x18 and 0x19 to
VREF_50.

This fix may also work for other boards that have been reported to have
the same microphone issue and use the ALC1150 and ALCS1200A codecs, since
these codecs are similar and the fix in the Realtek driver on Windows is
common for both. However, it is currently enabled only for ASUS TUF
B550M-PLUS as this is the only board that could be tested.

Signed-off-by: Marios Levogiannis <marios.levogiannis@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220530074131.12258-1-marios.levogiannis@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-05-30 14:09:57 +02:00
..
ac97
aoa
arm
atmel
core ALSA: seq: replace ternary operator with max() 2022-05-17 08:49:42 +02:00
drivers ALSA: Add generic serial MIDI driver using serial bus API 2022-05-12 11:54:13 +02:00
firewire ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes 2022-04-25 08:03:49 +02:00
hda ALSA: hda: intel-dsp-config: Add RaptorLake PCI IDs 2022-04-21 21:22:51 +02:00
i2c
isa ALSA: wavefront: Proper check of get_user() error 2022-05-10 16:26:45 +02:00
mips ALSA: mips: Use platform_get_irq() to get the interrupt 2022-02-28 16:59:01 +01:00
oss sound/oss/dmasound: fix 'dmasound_setup' defined but not used 2022-04-15 09:17:37 +02:00
parisc
pci ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS 2022-05-30 14:09:57 +02:00
pcmcia
ppc powerpc/machdep: Move sys_ctrler_t definition into pmac_feature.h 2022-02-07 21:02:20 +11:00
sh
soc ASoC: Updates for v5.19 2022-05-23 16:03:04 +02:00
sparc
spi sound updates for 5.18 2022-03-23 15:11:12 -07:00
synth
usb ALSA: usb-audio: Cancel pending work at closing a MIDI substream 2022-05-25 15:13:29 +02:00
virtio
x86 ALSA: intel_hdmi: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:35 +02:00
xen xen/grant-table: remove readonly parameter from functions 2022-03-15 20:34:40 -05:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c sound: core: Remove redundant variable and return the last statement 2022-02-28 17:57:14 +01:00