Re: [PATCH] ALSA: hda/realtek: Add mic-mute LED quirk for the HP 245 14 inch G10

[Takashi Iwai <tiwai@suse.de>]

On Sat, 17 Oct 2026 11:51:32 +0200,
Keane Mbae wrote:
> 
> The HP 245 14 inch G10 Notebook PC (codec SSID 103c:8ba4, ALC236) is not
> listed in alc269_fixup_tbl[], so the codec falls back to the vendor-wide
> HP entry (ALC269_FIXUP_HP_MUTE_LED).  That entry only registers a speaker
> mute LED (hda::mute); no microphone mute LED class device (hda::micmute)
> is created, so muting the microphone never lights the LED on the F8 key.
> 
> On this model the microphone mute LED is wired to COEF 0x35 bits 2-3 (the
> same register as ALC236_FIXUP_HP_MUTE_LED), but with the opposite sense:
> 1 << 2 lights the LED and 2 << 2 turns it off.  Setting
> micmute_led_polarity = 1 makes alc_update_coef_led() write the level that
> matches the hardware.
> 
> The speaker mute LED (F5) keeps being driven through the HP_Mute_LED DMI
> string, exactly as the current fallback does.
> 
> Add ALC236_FIXUP_HP_MUTE_LED_MICMUTE_COEF_INV for 103c:8ba4.
> 
> Signed-off-by: Keane Mbae <keanembae@gmail.com>
> Tested-by: Keane Mbae <keanembae@gmail.com>

Applied to for-next branch.  Thanks.


Takashi