我正在使用 ubuntu 20.04。我尝试从设置和 pavucontrol 中将线路输出切换到耳机。都不起作用。我的线路输出上有 4.0 环绕声系统，但我尝试过立体声，但也没用。耳机是立体声的。你能帮我吗？
当我将立体声扬声器连接到耳机插孔时。无法在那里连接 4.0，因为它需要 2 个插孔。声音在扬声器上有效，但在连接到线路输出的耳机上无效。当我切换输出设备时。
pactl list sinks给我-
Sink #0
State: RUNNING
Name: alsa_output.pci-0000_0c_00.3.analog-stereo
Description: Family 17h (Models 00h-0fh) HD Audio Controller Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 9
Mute: no
Volume: front-left: 79581 / 121% / 5.06 dB, front-right: 79581 / 121% / 5.06 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: alsa_output.pci-0000_0c_00.3.analog-stereo.monitor
Latency: 26672 usec, configured 26000 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC1220 Analog"
alsa.id = "ALC1220 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "3"
alsa.card_name = "HD-Audio Generic"
alsa.long_card_name = "HD-Audio Generic at 0xef800000 irq 77"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:0c:00.3"
sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:0c:00.3/sound/card3"
device.bus = "pci"
device.vendor.id = "1022"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
device.product.id = "1457"
device.product.name = "Family 17h (Models 00h-0fh) HD Audio Controller"
device.string = "front:3"
device.buffering.buffer_size = "352768"
device.buffering.fragment_size = "176384"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Family 17h (Models 00h-0fh) HD Audio Controller Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Ports:
analog-output-lineout: Line Out (priority: 9000, available)
analog-output-headphones: Headphones (priority: 9900, available)
Active Port: analog-output-headphones
Formats:
pcm
Sink #1
State: RUNNING
Name: PulseEffects_apps
Description: PulseEffects(apps)
Driver: module-null-sink.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 29
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: PulseEffects_apps.monitor
Latency: 30 usec, configured 10000 usec
Flags: DECIBEL_VOLUME LATENCY SET_FORMATS
Properties:
device.description = "PulseEffects(apps)"
device.class = "sound"
device.icon_name = "audio-card"
Formats:
pcm
Sink #2
State: SUSPENDED
Name: PulseEffects_mic
Description: PulseEffects(mic)
Driver: module-null-sink.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 30
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: PulseEffects_mic.monitor
Latency: 0 usec, configured 0 usec
Flags: DECIBEL_VOLUME LATENCY SET_FORMATS
Properties:
device.description = "PulseEffects(mic)"
device.class = "sound"
device.icon_name = "audio-card"
Formats:
pcm