我的声音输出设备不断从我想要的“alsa_output.usb-Bose_Corporation_Bose_USB_Audio-00.analog-surround-50”变为“alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4”。
我已经指定希望 Bose 设备成为默认音频接收器set-default-sink（参见星号）：
2 sink(s) available.
* index: 42
name: <alsa_output.usb-Bose_Corporation_Bose_USB_Audio-00.analog-surround-50>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause: (none)
priority: 9049
volume: front-left: 0 / 0% / -inf dB, front-right: 0 / 0% / -inf dB, rear-left: 25754 / 39% / -24.34 dB, rear-right: 0 / 0% / -inf dB, front-center: 0 / 0% / -inf dB
balance -1.00
base volume: 65687 / 100% / 0.06 dB
volume steps: 65537
muted: no
current latency: 23.27 ms
max request: 10 KiB
max rewind: 10 KiB
monitor source: 44
sample spec: s16le 5ch 48000Hz
channel map: front-left,front-right,rear-left,rear-right,front-center
Surround 5.0
used by: 1
linked by: 1
configured latency: 23.22 ms; range is 0.50 .. 1820.44 ms
card: 6 <alsa_card.usb-Bose_Corporation_Bose_USB_Audio-00>
module: 29
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "USB Audio"
alsa.id = "USB Audio"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "2"
alsa.card_name = "Bose USB Audio"
alsa.long_card_name = "Bose Corporation Bose USB Audio at usb-0000:00:14.0-10, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:10:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.0/sound/card2"
udev.id = "usb-Bose_Corporation_Bose_USB_Audio-00"
device.bus = "usb"
device.vendor.id = "05a7"
device.vendor.name = "Bose Corp."
device.product.id = "1020"
device.product.name = "Bose USB Audio"
device.serial = "Bose_Corporation_Bose_USB_Audio"
device.string = "surround50:2"
device.buffering.buffer_size = "873810"
device.buffering.fragment_size = "436900"
device.access_mode = "mmap+timer"
device.profile.name = "analog-surround-50"
device.profile.description = "Analog Surround 5.0"
device.description = "Bose USB Audio Analog Surround 5.0"
alsa.mixer_name = "USB Mixer"
alsa.components = "USB05a7:1020"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
ports:
analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
properties:
active port: <analog-output>
index: 68
name: <alsa_output.pci-0000_01_00.1.hdmi-stereo-extra4>
driver: <module-alsa-card.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9030
volume: front-left: 12074 / 18% / -44.08 dB, front-right: 12074 / 18% / -44.08 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 70
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 371.52 ms
card: 0 <alsa_card.pci-0000_01_00.1>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "HDMI 4"
alsa.id = "HDMI 4"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "10"
alsa.card = "1"
alsa.card_name = "HD-Audio Generic"
alsa.long_card_name = "HD-Audio Generic at 0xdb560000 irq 159"
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/card1"
device.bus = "pci"
device.vendor.id = "1002"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
device.product.id = "ab08"
device.product.name = "Polaris 22 HDMI Audio"
device.string = "hdmi:1,4"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "hdmi-stereo-extra4"
device.profile.description = "Digital Stereo (HDMI 5)"
device.description = "Polaris 22 HDMI Audio Digital Stereo (HDMI 5)"
alsa.mixer_name = "ATI R6xx HDMI"
alsa.components = "HDA:1002aa01,00aa0100,00100700"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: yes)
properties:
device.icon_name = "video-display"
device.product.name = "SAMSUNG"
active port: <hdmi-output-4>
无论如何，Ubuntu 都会在某个时间切换回 HDMI 音频设备。声音继续通过 Bose 扬声器播放，但主音量控制不会改变音量。然后我在“设置”>“声音”>“输出”中更改了设备。
我可以禁用 HDMI 设备吗？
有没有其他人有这个问题？
提前谢谢了！
答案1
尝试添加blacklist snd_hda_codec_hdmi到您的 /etc/modprobe.d/blacklist.conf 文件，然后重新启动。
这就是我在 19.10 安装上禁用 HDMI 输出的方法。
希望有所帮助。
答案2
添加
blacklist snd_hda_codec_hdmi
到您的/etc/modprobe.d/blacklist.conf文件并重新启动。
虽然不是很友好，但在尝试了其他方法都失败后，它还是帮我解决了问题。每当我的 NUC 媒体中心调暗屏幕并在获得焦点后恢复时，它都会将音频输出从 S/PDIF 更改为 HDMI，这很烦人。