我正在尝试使用板载麦克风进行视频会议。我在 alsamixer 或 pavucontrol 中没有麦克风调整。
我确信这台笔记本电脑有麦克风，只是我没看到。这就像驱动程序问题，但我找不到型号信息来开始追踪驱动程序。
已安装的驱动程序：
root@NewInspiron15:/home/# lsmod
Module Size Used by
snd_seq_dummy 16384 0
rfcomm 81920 4
ccm 20480 6
cmac 16384 8
algif_hash 16384 3
algif_skcipher 16384 3
af_alg 28672 14 algif_hash,algif_skcipher
bnep 24576 2
nls_iso8859_1 16384 1
usbhid 57344 0
cp210x 36864 0
usbserial 53248 1 cp210x
cdc_ether 20480 0
usbnet 49152 1 cdc_ether
r8152 77824 0
mii 20480 2 usbnet,r8152
uvcvideo 98304 0
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
btusb 57344 0
videobuf2_v4l2 24576 1 uvcvideo
btrtl 24576 1 btusb
videobuf2_common 57344 2 videobuf2_v4l2,uvcvideo
btbcm 16384 1 btusb
btintel 28672 1 btusb
videodev 241664 3 videobuf2_v4l2,uvcvideo,videobuf2_common
bluetooth 581632 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
mc 57344 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
ecdh_generic 16384 2 bluetooth
ecc 32768 1 ecdh_generic
snd_hda_codec_hdmi 61440 1
mei_hdcp 24576 0
snd_hda_codec_realtek 131072 1
intel_rapl_msr 20480 0
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
snd_sof_pci 24576 0
snd_sof_intel_byt 20480 1 snd_sof_pci
snd_sof_intel_ipc 20480 1 snd_sof_intel_byt
snd_sof_intel_hda_common 77824 1 snd_sof_pci
snd_soc_hdac_hda 24576 1 snd_sof_intel_hda_common
snd_sof_xtensa_dsp 16384 2 snd_sof_intel_hda_common,snd_sof_intel_byt
snd_sof_intel_hda 20480 1 snd_sof_intel_hda_common
snd_sof 122880 4 snd_sof_pci,snd_sof_intel_hda_common,snd_sof_intel_byt,snd_sof_intel_ipc
snd_hda_ext_core 32768 3 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_soc_acpi_intel_match 45056 2 snd_sof_pci,snd_sof_intel_hda_common
snd_soc_acpi 16384 3 snd_soc_acpi_intel_match,snd_sof_intel_hda_common,snd_sof_intel_byt
x86_pkg_temp_thermal 20480 0
snd_soc_core 270336 3 snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda
snd_compress 28672 1 snd_soc_core
ac97_bus 16384 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
intel_powerclamp 20480 0
coretemp 20480 0
snd_hda_intel 53248 4
snd_intel_dspcfg 24576 3 snd_hda_intel,snd_sof_pci,snd_sof_intel_hda_common
snd_hda_codec 139264 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
snd_hda_core 94208 9 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_sof_intel_hda
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 114688 10 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_sof,snd_sof_intel_hda_common,snd_compress,snd_soc_core,snd_hda_core,snd_pcm_dmaengine
dell_laptop 24576 0
joydev 24576 0
kvm_intel 286720 0
ledtrig_audio 16384 3 snd_hda_codec_generic,snd_sof,dell_laptop
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
iwlmvm 393216 0
dell_smm_hwmon 20480 0
kvm 712704 1 kvm_intel
mac80211 905216 1 iwlmvm
snd_rawmidi 36864 1 snd_seq_midi
crct10dif_pclmul 16384 1
ghash_clmulni_intel 16384 0
libarc4 16384 1 mac80211
aesni_intel 372736 15
snd_seq 69632 3 snd_seq_midi,snd_seq_midi_event,snd_seq_dummy
crypto_simd 16384 1 aesni_intel
dell_wmi 20480 0
cryptd 24576 5 crypto_simd,ghash_clmulni_intel
glue_helper 16384 1 aesni_intel
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
i915 2199552 50
dell_smbios 28672 2 dell_wmi,dell_laptop
intel_cstate 20480 0
snd_timer 40960 2 snd_seq,snd_pcm
input_leds 16384 0
dcdbas 20480 1 dell_smbios
iwlwifi 352256 1 iwlmvm
drm_kms_helper 217088 1 i915
snd 94208 20 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
serio_raw 20480 0
mei_me 40960 1
wmi_bmof 16384 0
mei 106496 3 mei_hdcp,mei_me
efi_pstore 16384 0
cec 53248 2 drm_kms_helper,i915
soundcore 16384 1 snd
rc_core 57344 1 cec
i2c_algo_bit 16384 1 i915
dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios
cfg80211 778240 3 iwlmvm,iwlwifi,mac80211
processor_thermal_device 24576 0
fb_sys_fops 16384 1 drm_kms_helper
ucsi_acpi 16384 0
syscopyarea 16384 1 drm_kms_helper
intel_rapl_common 28672 2 intel_rapl_msr,processor_thermal_device
typec_ucsi 32768 1 ucsi_acpi
hid_multitouch 28672 0
cros_ec_ishtp 20480 0
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
cros_ec 20480 1 cros_ec_ishtp
intel_soc_dts_iosf 20480 1 processor_thermal_device
typec 53248 1 typec_ucsi
mac_hid 16384 0
soc_button_array 20480 0
int3403_thermal 20480 0
int340x_thermal_zone 20480 2 int3403_thermal,processor_thermal_device
int3400_thermal 20480 0
acpi_thermal_rel 16384 1 int3400_thermal
intel_hid 20480 0
acpi_pad 184320 0
sparse_keymap 16384 2 intel_hid,dell_wmi
acpi_tad 16384 0
sch_fq_codel 20480 2
parport_pc 45056 0
ppdev 24576 0
lp 20480 0
drm 552960 19 drm_kms_helper,i915
parport 65536 3 parport_pc,lp,ppdev
ip_tables 32768 0
x_tables 49152 1 ip_tables
autofs4 45056 2
uas 28672 1
usb_storage 73728 1 uas
hid_sensor_custom 24576 0
hid_sensor_hub 24576 1 hid_sensor_custom
intel_ishtp_loader 24576 0
intel_ishtp_hid 24576 0
hid_generic 16384 0
nvme 45056 1
nvme_core 110592 3 nvme
crc32_pclmul 16384 0
psmouse 155648 0
i2c_i801 32768 0
intel_lpss_pci 20480 0
thunderbolt 196608 0
intel_lpss 16384 1 intel_lpss_pci
intel_ish_ipc 24576 0
i2c_smbus 20480 1 i2c_i801
idma64 20480 0
xhci_pci 20480 0
intel_ishtp 53248 4 cros_ec_ishtp,intel_ishtp_hid,intel_ish_ipc,intel_ishtp_loader
virt_dma 20480 1 idma64
xhci_pci_renesas 20480 1 xhci_pci
vmd 16384 0
wmi 32768 4 dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
i2c_hid 28672 0
hid 135168 6 i2c_hid,usbhid,hid_multitouch,hid_sensor_hub,intel_ishtp_hid,hid_generic
video 49152 3 dell_wmi,dell_laptop,i915
pinctrl_tigerlake 32768 1
pinctrl_intel 28672 1 pinctrl_tigerlake
如何打开全新 Inspiron 5509 上的麦克风？
我试过：
sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio
但这并没有什么用。厚颜无耻地寻找也没有用。
更新：
arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3204 Analog [ALC3204 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC3204 Alt Analog [ALC3204 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
更新2：
DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"
我的 alsamixer 麦克风输出很奇怪。
调试输出：
NewInspiron15:~$ sudo alsa force-reload
[sudo] password for brad:
Unloading ALSA sound driver modules: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-sof-pci snd-sof-intel-byt snd-sof-intel-ipc snd-sof-intel-hda-common snd-soc-hdac-hda snd-sof-xtensa-dsp snd-sof-intel-hda snd-sof snd-hda-ext-core snd-soc-acpi-intel-match snd-soc-acpi snd-soc-core snd-compress snd-pcm-dmaengine snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer (failed: modules still loaded: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
Loading ALSA sound driver modules: snd-hda-codec-hdmi snd-hda-codec-realtek snd-hda-codec-generic snd-sof-pci snd-sof-intel-byt snd-sof-intel-ipc snd-sof-intel-hda-common snd-soc-hdac-hda snd-sof-xtensa-dsp snd-sof-intel-hda snd-sof snd-hda-ext-core snd-soc-acpi-intel-match snd-soc-acpi snd-soc-core snd-compress snd-pcm-dmaengine snd-hda-intel snd-intel-dspcfg snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-seq-midi snd-seq-midi-event snd-rawmidi snd-seq snd-seq-device snd-timer.
更新：
NewInspiron15:~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3204 Analog [ALC3204 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC3204 Alt Analog [ALC3204 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
NewInspiron15:~$ arecord -f S16_LE -d 10 -r 16000 --device="hw:0,0" /tmp/test-mic.wav
Recording WAVE '/tmp/test-mic.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono
arecord: set_params:1374: Channels count non available
以上操作不会创建声音文件。
答案1
这解决了问题。具体来说是他的第二次更新。
gedit /etc/modprobe.d/alsa-base.conf
add
blacklist snd-hda-intel
blacklist snd-soc-skl
reboot