Lenovo X1 Extreme Gen 3では音が聞こえません。

Thinkpad X1 Extreme Gen 3にManjaro i3をインストールしましたが、驚くほど機能しないのはオーディオとサウンドです。

「ステータスバー」アイコンはミュートアイコンを表示し、alsamixerどのレベルも表示しません。

アルサミキサー：

インターネットを検索してみましたが、何も見つかりませんでした。誰かがこの問題について助けることができますか？

出力lspci -nn（有用かもしれません）：

00:00.0 Host bridge [0600]: Intel Corporation 10th Gen Core Processor Host Bridge/DRAM Registers [8086:9b54] (rev 02)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 02)
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 02)
00:08.0 System peripheral [0880]: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model [8086:1911]
00:12.0 Signal processing controller [1180]: Intel Corporation Comet Lake PCH Thermal Controller [8086:06f9]
00:14.0 USB controller [0c03]: Intel Corporation Comet Lake USB 3.1 xHCI Host Controller [8086:06ed]
00:14.2 RAM memory [0500]: Intel Corporation Comet Lake PCH Shared SRAM [8086:06ef]
00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9462/9560 [8086:06f0]
00:16.0 Communication controller [0780]: Intel Corporation Comet Lake HECI Controller [8086:06e0]
00:16.3 Serial controller [0700]: Intel Corporation Device [8086:06e3]
00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:06b8] (rev f0)
00:1c.7 PCI bridge [0604]: Intel Corporation Device [8086:06bf] (rev f0)
00:1d.0 PCI bridge [0604]: Intel Corporation Comet Lake PCI Express Root Port #9 [8086:06b0] (rev f0)
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:068e]
00:1f.3 Multimedia audio controller [0401]: Intel Corporation Comet Lake PCH cAVS [8086:06c8]
00:1f.4 SMBus [0c05]: Intel Corporation Comet Lake PCH SMBus Controller [8086:06a3]
00:1f.5 Serial bus controller [0c80]: Intel Corporation Comet Lake PCH SPI Controller [8086:06a4]
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] [10de:1f95] (rev a1)
01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:10fa] (rev a1)
04:00.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
05:00.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
05:01.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
05:02.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
05:04.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06)
06:00.0 System peripheral [0880]: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 4C 2018] [8086:15eb] (rev 06)
2c:00.0 USB controller [0c03]: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] [8086:15ec] (rev 06)
54:00.0 SD Host controller [0805]: Genesys Logic, Inc Device [17a0:9755]
55:00.0 Non-Volatile memory controller [0108]: Toshiba Corporation Device [1179:011a]