On Tue, Nov 02, 2021 at 09:19:25AM +0100, Takashi Iwai wrote: > Could you try just to flip the bit 0x08? At LED off state? > > % hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x0b > % hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x77f4 > > That is, the implementation in alc286_fixup_hp_mute_led_coefbit(), > which is used by many other HP laptops. Ah, I see what you mean. Yes, you're right, changing from 0x77f4 to 0x77fc makes the mute led light up. The changes to the other proc_coef bits in my patch are not needed. I will revise and revert in next few days. Thanks
