我知道这个问题已经被问过无数次了，但在各种搜索中搜索到第 25 页并打开每个页面上的每个链接后，我仍然找不到任何有效的解决方案。我的电脑是 Chuwi Geminibook Pro。直到昨天，pavucontrol 才将“虚拟输出”作为输出设备，但现在它只有“HDMI/DisplayPort 3（未插电）”。Alsamixer 只显示 S/PDIF，一切都是 00。我一个月前安装了 Ubuntu，对电脑几乎一无所知，所以请耐心等待。cat /proc/asound/cards ：
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xa1210000 irq 129
來西：
CPU: Quad Core Intel Celeron J4125 (-MCP-) speed/min/max: 1166/800/2700 MHz
Kernel: 5.13.0-39-generic x86_64 Up: 1d 3h 27m
Mem: 4301.3/7767.1 MiB (55.4%) Storage: 238.47 GiB (10.8% used) Procs: 306
Shell: bash 5.0.17 inxi: 3.0.38
lspci：
00:00.0 Host bridge: Intel Corporation Gemini Lake Host Bridge (rev 06)
00:00.1 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Dynamic Platform and Thermal Framework Processor Participant (rev 06)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 605 (rev 06)
00:0e.0 Multimedia audio controller: Intel Corporation Device 3198 (rev 06)
00:0f.0 Communication controller: Intel Corporation Celeron/Pentium Silver Processor Trusted Execution Engine Interface (rev 06)
00:12.0 SATA controller: Intel Corporation Device 31e3 (rev 06)
00:14.0 PCI bridge: Intel Corporation Gemini Lake PCI Express Root Port (rev f6)
00:15.0 USB controller: Intel Corporation Device 31a8 (rev 06)
00:16.0 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO I2C Host Controller (rev 06)
00:16.1 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO I2C Host Controller (rev 06)
00:16.2 Signal processing controller: Intel Corporation Device 31b0 (rev 06)
00:16.3 Signal processing controller: Intel Corporation Device 31b2 (rev 06)
00:17.0 Signal processing controller: Intel Corporation Device 31b4 (rev 06)
00:17.1 Signal processing controller: Intel Corporation Device 31b6 (rev 06)
00:17.2 Signal processing controller: Intel Corporation Device 31b8 (rev 06)
00:17.3 Signal processing controller: Intel Corporation Device 31ba (rev 06)
00:18.0 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller (rev 06)
00:18.1 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller (rev 06)
00:18.2 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller (rev 06)
00:18.3 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller (rev 06)
00:19.0 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO SPI Host Controller (rev 06)
00:19.1 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO SPI Host Controller (rev 06)
00:19.2 Signal processing controller: Intel Corporation Celeron/Pentium Silver Processor Serial IO SPI Host Controller (rev 06)
00:1c.0 SD Host controller: Intel Corporation Celeron/Pentium Silver Processor SDA Standard Compliant SD Host Controller (rev 06)
00:1e.0 SD Host controller: Intel Corporation Device 31d0 (rev 06)
00:1f.0 ISA bridge: Intel Corporation Device 31e8 (rev 06)
00:1f.1 SMBus: Intel Corporation Celeron/Pentium Silver Processor Gaussian Mixture Model (rev 06)
01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
aplay-l：
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
我不知道还应该向您展示什么，请告诉我（另外，我没有连接任何外部声音设备（耳机等））