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black_dragon

Member

Registered: 2025-04-18

Posts: 27

[SOLVED]Comet Lake Microphone is not wokring on Precision 5750 laptop

Hi,
My laptop's microphone is not working, I'm not sure if it was ever working before.
alsa-utils is installed.
It works on Windows, so this is not a hardware issue.
There is a device in KDE sound settings but no sound is recorded.
Please help me troubleshoot.

lspci

0000:00:00.0 Host bridge: Intel Corporation 10th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
0000:00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 02)
0000:00:02.0 VGA compatible controller: Intel Corporation CometLake-H GT2 [UHD Graphics] (rev 05)
0000:00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
0000:00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
0000:00:12.0 Signal processing controller: Intel Corporation Comet Lake PCH Thermal Controller
0000:00:13.0 Serial controller: Intel Corporation Comet Lake PCH Integrated Sensor Solution
0000:00:14.0 USB controller: Intel Corporation Comet Lake USB 3.1 xHCI Host Controller
0000:00:14.2 RAM memory: Intel Corporation Comet Lake PCH Shared SRAM
0000:00:14.3 Network controller: Intel Corporation Comet Lake PCH CNVi WiFi
0000:00:15.0 Serial bus controller: Intel Corporation Comet Lake PCH Serial IO I2C Controller #0
0000:00:15.1 Serial bus controller: Intel Corporation Comet Lake PCH Serial IO I2C Controller #1
0000:00:16.0 Communication controller: Intel Corporation Comet Lake HECI Controller
0000:00:16.3 Serial controller: Intel Corporation Comet Lake Keyboard and Text (KT) Redirection
0000:00:17.0 RAID bus controller: Intel Corporation Comet Lake PCH-H RAID
0000:00:1c.0 PCI bridge: Intel Corporation Comet Lake PCIe Root Port #1 (rev f0)
0000:00:1c.4 PCI bridge: Intel Corporation Device 06bc (rev f0)
0000:00:1d.0 PCI bridge: Intel Corporation Comet Lake PCI Express Root Port #9 (rev f0)
0000:00:1f.0 ISA bridge: Intel Corporation WM490 Chipset LPC/eSPI Controller
0000:00:1f.3 Multimedia audio controller: Intel Corporation Comet Lake PCH cAVS
0000:00:1f.4 SMBus: Intel Corporation Comet Lake PCH SMBus Controller
0000:00:1f.5 Serial bus controller: Intel Corporation Comet Lake PCH SPI Controller
0000:01:00.0 VGA compatible controller: NVIDIA Corporation TU106GLM [Quadro RTX 3000 Mobile / Max-Q] (rev a1)
0000:01:00.1 Audio device: NVIDIA Corporation TU106 High Definition Audio Controller (rev a1)
0000:01:00.2 USB controller: NVIDIA Corporation TU106 USB 3.1 Host Controller (rev a1)
0000:01:00.3 Serial bus controller: NVIDIA Corporation TU106 USB Type-C UCSI Controller (rev a1)
0000:02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5260 PCI Express Card Reader (rev 01)
0000:03:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:04:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:04:01.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:04:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:04:04.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:05:00.0 System peripheral: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018] (rev 06)
0000:39:00.0 USB controller: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] (rev 06)
0000:6d:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:6e:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:6e:01.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:6e:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:6e:04.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] (rev 06)
0000:6f:00.0 System peripheral: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018] (rev 06)
0000:a3:00.0 USB controller: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] (rev 06)
10000:00:00.0 SATA controller: Intel Corporation Comet Lake PCH-H RAID
10000:00:01.0 Non-Volatile memory controller: Intel Corporation Device 0000

Last edited by black_dragon (2025-08-24 02:54:59)

black_dragon

Member

Registered: 2025-04-18

Posts: 27

Re: [SOLVED]Comet Lake Microphone is not wokring on Precision 5750 laptop

I reinstalled alsa-utils, restarted PC and it's working!