Re: pulseaudio / alc1220 sound clicks interruptions etc

On Thu, Jun 5, 2025 at 3:36 AM Amar Takhar <verm@darkbeer.org> wrote:
>
> On 2025-06-05 03:19 +0200, Tomek CEDRO wrote:
> > On Thu, Jun 5, 2025 at 2:50???AM Tomek CEDRO <tomek@cedro.info> wrote:
> > > Amar could you please try disabling the nvidia module and running Xorg
> > > on SCFB framebuffer to see if that solves problem on your setup?
> >
> > Okay, another idea I just had was to disable all C-states in BIOS,
> > maybe cores were disappearing in unhandled manner and jobs were
> > unfinished or something like that, so disabling C-states while P+E
> > cores are active with speed step also improves things for me - no
> > audio pauses, no clicking, no glitches, even on high load (make
> > buildworld -j24 + virtualbox + firefox), you can try that too :-)
>
> I tried this no difference -- I mentioned this elsewhere but sometimes it sounds
> like it's fixed but it's not if you look at the sine wave the pops/gaps are
> still there you just can't hear them they get smaller.  I checked this because
> at one point when I couldn't find a video that was making the sound and thought
> it was fixed I could tell there were still some slight UI hiccups.
>
> That's when I checked to be sure and sure enough it's painfully clear they were
> still there.  I don't think this issue is just causing problems for audio but
> also with Xorg.

Yeah, I think problem is somewhere below, audio and gpu only gets hit
by the problem. Even with PCI-Ex16 set to 8x/8x and all C-states
disabled I just got all onboard USB controllers fail. I have
additional PCI-Ex1 USB3.0 controller that saves me from that and the
machine works no kernel panic. Maybe we should try 8x/4x/4x PCI mode?

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info