> -----Original Message----- > From: Takashi Iwai <tiwai@xxxxxxx> > Sent: Tuesday, April 16, 2019 5:59 PM > To: Kailang <kailang@xxxxxxxxxxx> > Cc: Jaroslav Kysela <perex@xxxxxxxx>; hwang4 <hui.wang@xxxxxxxxxxxxx>; > (alsa-devel@xxxxxxxxxxxxxxxx) <alsa-devel@xxxxxxxxxxxxxxxx> > Subject: Re: Dell AIO speaker pop noise > > On Tue, 16 Apr 2019 10:59:37 +0200, > Kailang wrote: > > > > > > > > > -----Original Message----- > > > From: Takashi Iwai <tiwai@xxxxxxx> > > > Sent: Tuesday, April 16, 2019 4:22 PM > > > To: Jaroslav Kysela <perex@xxxxxxxx> > > > Cc: Kailang <kailang@xxxxxxxxxxx>; hwang4 <hui.wang@xxxxxxxxxxxxx>; > > > (alsa-devel@xxxxxxxxxxxxxxxx) <alsa-devel@xxxxxxxxxxxxxxxx> > > > Subject: Re: Dell AIO speaker pop noise > > > > > > On Tue, 16 Apr 2019 10:01:31 +0200, > > > Jaroslav Kysela wrote: > > > > > > > > Dne 16. 04. 19 v 9:30 Kailang napsal(a): > > > > > Hi Takashi, > > > > > > > > > > Issue 1: The noise keeps occurring via speaker when Headset is plugged > in. > > > > > Issue 2: The humming noise is occuring when switching to sound > > > > > of > > > settings. > > > > > The noise will be stopped when switching to other options of > settings. > > > > > Issue 3: The popping noise occurred for one second when plugged > > > > > in and > > > removed the headset. > > > > > > > > > > This patch will solve this three issues. > > > > > > > > Hi, > > > > > > > > could you explain, why the power-save function causes this > > > > behaviour? Can we do something else than turning off the > > > > power-save codec settings to avoid such noises? I have this > > > > question because it's really > > > easy to disable something, but I feel that the culprit of the noises > > > might be just the wrong codec settings. I guess that you have > > > probably full documentation for the codec and probably for the > > > hardware, so it might be nice to find the real culprit. > > > > > > Note that power_save_node=0 doesn't mean that the whole power saving > > > is disabled. It disables the fine-grained power saving, i.e. > > > powering down the unused widget nodes. > > > > > > If so, I wonder whether this might be about the default pin-shutup > > > behavior. I improved the click noise problem on my Dell desktop by > > > disabling the pin shutup. See commit c0ca5eced222. > > > Kailang, Hui, did you try to add the chain to ALC269_FIXUP_NO_SHUTUP? > > > > > This noise was not happen on poweroff. > > The pin shutup change helped at the resume click noise in my case. > > > AIO use external AMP. So, it will be need to have a reference voltage via > codec. > > So, Pin-ctls was not be 0. I apply option spec->gen.suppress_auto_mute = 1 to > avoid that. > > If a specific widget must not enter D3, you can filter out by setting with power > filter. An example is found in patch_sigmatel.c > stac_vref_led_power_filter() which avoids D3 on AFG node for keeping mute > LED working. Only ALC274 has this issue. It just PIN don't enter to D3. But codec enter to D3 will not have this issue. When power_save = 1, codec will enter to D3 after one more second. If this time PIN in D3 state, it will show noise from speaker. If set power_save_node = 0, noise was gone. This symptom that I test on ALC225 with external AMP machine. It was not has this symptom. > > > Takashi > > > Internal SPK PIN also don't enter to D3. But I find it just only happen on > ALC274 family codecs. > > ALC274 pin enter to D3. Pin-ctls also be 0. So, power_save_node=0 will let > PIN to D0. > > > > power_save = 0 it also could solve issue. > > > > > > > > > > > > thanks, > > > > > > Takashi > > > > > > ------Please consider the environment before printing this e-mail. > > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
