我正在尝试在Ubuntu 20.04(全新安装)中通过NVIDIA显卡设置HDMI / DisplayPort音频输出。内置扬声器工作正常。
PulseAudio识别到音频卡,并显示端口和配置文件列表,但它们都显示为不可用(请参见下文)。PulseAudio界面显示了该音频卡的多个配置文件,但它们都标记为
如果我执行以下操作,HDMI / DisplayPort音频就可以正常工作:
1. 手动设置配置文件和端口: pacmd set-card-profile alsa_card.pci-0000_01_00.1 output:hdmi-stereo pacmd set-sink-port alsa_output.pci-0000_01_00.1.hdmi-stereo hdmi-output-0
2. 手动在PulseAudio播放选项卡中启动音频并分配HDMI / DisplayPort设备。
但是,一旦音频应用停止播放,应用程序就会从播放列表中移除,当它重新启动时,PulseAudio会分配一个默认设备。我怀疑这是因为PulseAudio认为HDMI输出“未插入”。默认的声音设置界面在选择器中不列出HDMI输出选项。
使PulseAudio将该设备视为已插入并正常工作的正确方法是什么?
使用专有的
PulseAudio识别到音频卡,并显示端口和配置文件列表,但它们都显示为不可用(请参见下文)。PulseAudio界面显示了该音频卡的多个配置文件,但它们都标记为
(未连接)(不可用)
。如果我执行以下操作,HDMI / DisplayPort音频就可以正常工作:
1. 手动设置配置文件和端口: pacmd set-card-profile alsa_card.pci-0000_01_00.1 output:hdmi-stereo pacmd set-sink-port alsa_output.pci-0000_01_00.1.hdmi-stereo hdmi-output-0
2. 手动在PulseAudio播放选项卡中启动音频并分配HDMI / DisplayPort设备。
但是,一旦音频应用停止播放,应用程序就会从播放列表中移除,当它重新启动时,PulseAudio会分配一个默认设备。我怀疑这是因为PulseAudio认为HDMI输出“未插入”。默认的声音设置界面在选择器中不列出HDMI输出选项。
使PulseAudio将该设备视为已插入并正常工作的正确方法是什么?
使用专有的
nvidia-390
驱动程序。
pacmd list-cards
的输出:2 card(s) available.
index: 0
name: <alsa_card.pci-0000_01_00.1>
driver: <module-alsa-card.c>
owner module: 23
properties:
alsa.card = "1"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xf1000000 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/card1"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "0bea"
device.product.name = "GF108 High Definition Audio Controller"
device.string = "1"
device.description = "GF108 High Definition 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)
output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) 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"
hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
index 1:
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