On Tue, 11 Jan 2022 20:52:29 +0100, Alexander Sergeyev wrote: > > Hello, > > On Thu, May 20, 2021 at 01:03:53AM +0800, Jeremy Szu wrote: > >The HP EliteBook 855 G8 Notebook PC is using ALC285 codec which needs > >ALC285_FIXUP_HP_MUTE_LED fixup to make it works. After applying the > >fixup, the mute/micmute LEDs work good. > > I've recently got HP EliteBook 855 G8 and it happens that neither > micmute LED nor speakers work (except rare cases, more on that later) > in 5.16.0. The corresponding ALC285_FIXUP_HP_MUTE_LED fixup is > definitely applied (verified by adding a printk into > alc285_fixup_hp_mute_led). > > What is the most interesting, both micmute LED and speakers do work on > rare boots. I've written some scripts to pick up sound from speakers > using a known-good USB microphone. Out of 709 boots today only 16 > ended up with working micmute LED and speakers. > > Is there anything I can do to help with debugging of this problem? > > Initially reported at https://bugzilla.kernel.org/show_bug.cgi?id=215466 The problem is about the built-in drivers, or do you see the very same problem even with modules? AFAIK, quite a few AMD platforms tend to have some issues with various devices showing initialization problems at the early boot. Just reloading / rebinding the device later often helps. Takashi
