Speakers make a constant smooth sound

Continuing the discussion from Noise coming from laptop speakers:

I have the same issue: It is something like: Shhhhhhhhhhhhhhhhhhhh. And it is constant, all the time. When I connect a headphone the noise is gone, but as soon as I disconnect it, the noise comes back.

Muting the sound also stops the noise.

He said he used lenovo-dock but my laptop is HP and I have no file named /etc/modprobe.d/sound.conf and I have no idea what TLP means in the solution he found.

My (only) sink:

Sink #0
        State: SUSPENDED
        Name: alsa_output.pci-0000_00_1f.3.analog-stereo
        Description: Built-in Audio Analog Stereo
        Driver: module-alsa-card.c
        Sample Specification: s16le 2ch 48000Hz
        Channel Map: front-left,front-right
        Owner Module: 6
        Mute: no
        Volume: front-left: 52428 /  80% / -5.81 dB,   front-right: 52428 /  80% / -5.81 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC285 Analog"
                alsa.id = "ALC285 Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xb4618000 irq 159"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "a348"
                device.product.name = "Cannon Lake PCH cAVS"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "384000"
                device.buffering.fragment_size = "192000"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Built-in Audio Analog Stereo"
                alsa.mixer_name = "Realtek ALC285"
                alsa.components = "HDA:10ec0285,103c85fc,00100002 HDA:8086280b,80860101,00100000"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Ports:
                analog-output-speaker: Speakers (priority: 10000)
                analog-output-headphones: Headphones (priority: 9900, not available)
        Active Port: analog-output-speaker
        Formats:
                pcm

EDIT: I tried editing /etc/modprobe.d/sound.conf and it basically broke my audio. It works again after undoing that but I still get the noise.

Forum kindly sponsored by