Hi,

On 5/24/2021 2:27 PM, Peter Ujfalusi wrote:

On playback start there is a huge plock/pop noise via the green jack used in Line out mode.

The only way I was able to fix it to set the power_save to 0 for the snd_hda_intel.

Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com

Hi Takashi,

ever since I have this workstation the plock/pop noise on playback start bugged me. So far the only solution I have found is to disable the power_save which I find acceptable on a desktop compared to the pops.

The alsa-info.sh output is can be found here: http://alsa-project.org/db/?f=414b1b236fc73db386ad4f938bc3b304f6b30b05

The machine have ALC623 codec and the jacks are correctly discovered and they do what they supposed to be. When I have the headset connected to the front and audio is routed there the line out (green jack) from the back still prodices the plock/pop.

Is there a known quirk for similar issue or a better way to handle it?

Thanks you, Peter Ujfalusi

sound/pci/hda/hda_intel.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 79ade335c8a0..e16d93d8291f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2213,6 +2213,8 @@ static const struct snd_pci_quirk power_save_denylist[] = { SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0), /* https://bugs.launchpad.net/bugs/1821663 */ SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),

• /* Loud pluck/pop noise via the green jack on playback start */
• SND_PCI_QUIRK(0x8086, 0x06c8, "Lenovo ThinkStation P340", 0),

The PCI ID might be wrong here: # lspci -nnk | grep -A2 Audio 00:1f.3 Audio device [0403]: Intel Corporation Comet Lake PCH cAVS [8086:06c8]        DeviceName: Onboard - Sound        Subsystem: Lenovo Device [17aa:1048]

0x17aa:0x1048 is the correct one.

alsa-info failed to pick up the CPU, it is i9-10900k

{} }; #endif /* CONFIG_PM */