今天我从 Ubuntu 18.04 LTS 升级到 18.10。更新运行时没有任何错误消息。更新后声音设置只显示“虚拟输出”。
$ pacmd list-cards
2 card(s) available.
index: 0
name: <alsa_card.pci-0000_01_00.1>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "2"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xef080000 irq 17"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:01:00.1"
sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "0e1b"
device.product.name = "GK107 HDMI Audio Controller"
device.string = "2"
device.description = "GK107 HDMI Audio Controller"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
off: Off (priority 0, available: unknown)
active profile: <off>
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
index: 1
name: <alsa_card.usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02>
driver: <module-alsa-card.c>
owner module: 8
properties:
alsa.card = "1"
alsa.card_name = "Trust Webcam"
alsa.long_card_name = "Trust Webcam Trust Webcam at usb-0000:00:14.0-3, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:3:1.2"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.2/sound/card1"
udev.id = "usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02"
device.bus = "usb"
device.vendor.id = "0c45"
device.vendor.name = "Microdia"
device.product.id = "6340"
device.product.name = "Camera"
device.serial = "Trust_Webcam_Trust_Webcam_Trust_Webcam"
device.form_factor = "webcam"
device.string = "1"
device.description = "Camera"
module-udev-detect.discovered = "1"
device.icon_name = "camera-web-usb"
profiles:
input:analog-mono: Analog Mono Input (priority 7, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <input:analog-mono>
sources:
alsa_input.usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02.analog-mono/#0: Camera Analog Mono
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
lspci
$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
01:00.1 Audio device: NVIDIA Corporation GK107 HDMI Audio Controller (rev a1)
详细的lspci
$ sudo lspci -nnk | grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation 8 Series/C220 Series
Chipset High Definition Audio Controller [8086:8c20] (rev 05)
Subsystem: Hewlett-Packard Company 8 Series/C220 Series Chipset High Definition Audio Controller [103c:1905]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
--
01:00.1 Audio device [0403]: NVIDIA Corporation GK107 HDMI Audio
Controller [10de:0e1b] (rev a1)
Subsystem: Hewlett-Packard Company GK107 HDMI Audio Controller [103c:094b]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
我有同样的问题。在另一个网站上发现我的问题通过卸载胆怯解决了。重新启动后，我又有声音了。
有同样的问题，还有 dns 查找（几乎没有互联网连接，它在启动后的第一分钟随机关闭，非常烦人的情况）