每当我在ALC294运行snd-hda-intel驱动程序的设备上播放声音时，声音都会在 2 秒内消失。问题和描述的完全一样这里。在 Windows 下一切都很好，并且通过 ChromeCast 镜像 Chrome 选项卡也能发出声音。我还可以听到跑步的aplay -D plughw:0,1 /usr/share/sounds/alsa/Front_Center.wav声音
我尝试了各种选项，/etc/modprobe.d/alsa-base.conf例如这
options snd-hda-intel vid=8086 pid=8ca0 snoop=0
options snd-hda-intel power_save=10 power_save_controller=N model=ref
并且禁用pulseaudio中基于定时器的调度，都没有成功。
这是我的系统的一些输出：
$ inxi -Fxz
System: Kernel: 5.4.0-48-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.6.7
Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal
Machine: Type: Laptop System: ASUSTeK product: ZenBook UX434FAC_UX433FAC v: 1.0 serial: <filter>
Mobo: ASUSTeK model: UX434FAC v: 1.0 serial: <filter> UEFI: American Megatrends v: UX434FAC.303 date: 12/18/2019
Battery: ID-1: BAT0 charge: 36.1 Wh condition: 47.2/50.0 Wh (94%) model: ASUSTeK ASUS Battery status: Discharging
CPU: Topology: Quad Core model: Intel Core i7-10510U bits: 64 type: MT MCP arch: Kaby Lake rev: C L2 cache: 8192 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 36799
Speed: 892 MHz min/max: 400/4900 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800 8: 802
Graphics: Device-1: Intel UHD Graphics vendor: ASUSTeK driver: i915 v: kernel bus ID: 00:02.0
Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics (CML GT2) v: 4.6 Mesa 20.0.8 direct render: Yes
Audio: Device-1: Intel vendor: ASUSTeK driver: snd_hda_intel v: kernel bus ID: 00:1f.3
Sound Server: ALSA v: k5.4.0-48-generic
Network: Device-1: Intel Wireless-AC 9462 driver: iwlwifi v: kernel port: 3000 bus ID: 00:14.3
IF: wlo1 state: up mac: <filter>
Drives: Local Storage: total: 476.94 GiB used: 10.15 GiB (2.1%)
ID-1: /dev/nvme0n1 vendor: Samsung model: MZVLQ512HALU-00000 size: 476.94 GiB
Partition: ID-1: / size: 41.48 GiB used: 10.12 GiB (24.4%) fs: ext4 dev: /dev/nvme0n1p7
ID-2: swap-1 size: 7.63 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/nvme0n1p5
Sensors: System Temperatures: cpu: 45.0 C mobo: N/A
Fan Speeds (RPM): cpu: 0
Info: Processes: 251 Uptime: 23m Memory: 15.44 GiB used: 1.36 GiB (8.8%) Init: systemd runlevel: 5 Compilers: gcc: 9.3.0
Shell: bash v: 5.0.17 inxi: 3.0.38
$ hwinfo --sound
14: PCI 1f.3: 0403 Audio device
[Created at pci.386]
Unique ID: nS1_.vs3HRr7P0uA
SysFS ID: /devices/pci0000:00/0000:00:1f.3
SysFS BusID: 0000:00:1f.3
Hardware Class: sound
Model: "Intel Audio device"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x02c8
SubVendor: pci 0x1043 "ASUSTeK Computer Inc."
SubDevice: pci 0x1a11
Driver: "snd_hda_intel"
Driver Modules: "snd_hda_intel"
Memory Range: 0xb1218000-0xb121bfff (rw,non-prefetchable)
Memory Range: 0xb1000000-0xb10fffff (rw,non-prefetchable)
IRQ: 145 (11884 events)
Module Alias: "pci:v00008086d000002C8sv00001043sd00001A11bc04sc03i80"
Driver Info #0:
Driver Status: snd_hda_intel is active
Driver Activation Cmd: "modprobe snd_hda_intel"
Driver Info #1:
Driver Status: snd_sof_pci is active
Driver Activation Cmd: "modprobe snd_sof_pci"
Config Status: cfg=new, avail=yes, need=no, active=unknown
$ fuser -v /dev/snd/*
USER PID ACCESS COMMAND
/dev/snd/controlC0: frederik 5250 F.... pulseaudio
$ pacmd list-cards
1 card(s) available.
index: 0
name: <alsa_card.pci-0000_00_1f.3>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xb1218000 irq 145"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1f.3"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "02c8"
device.form_factor = "internal"
device.string = "0"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
off: Off (priority 0, available: unknown)
active profile: <output:analog-stereo+input:analog-stereo>
sinks:
alsa_output.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
sources:
alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#0: Monitor of Built-in Audio Analog Stereo
alsa_input.pci-0000_00_1f.3.analog-stereo/#1: Built-in Audio Analog Stereo
ports:
analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-input-headset-mic: Headset Microphone (priority 8800, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-input-microphone"
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
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"
hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
播放音频时：
$ pacmd list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1f.3.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
state: RUNNING
suspend cause: (none)
priority: 9039
volume: front-left: 35389 / 54% / -16,06 dB, front-right: 35389 / 54% / -16,06 dB
balance 0,00
base volume: 65536 / 100% / 0,00 dB
volume steps: 65537
muted: no
current latency: 100,75 ms
max request: 17 KiB
max rewind: 17 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 1
fixed latency: 99,95 ms
card: 0 <alsa_card.pci-0000_00_1f.3>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC294 Analog"
alsa.id = "ALC294 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xb1218000 irq 145"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1f.3"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "02c8"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "17632"
device.buffering.fragment_size = "4408"
device.access_mode = "mmap"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-speaker>
这是一个问题alsa还是一个pulseaudio问题？
答案1
不是解决方案，但我找到了问题的解释和解决方法这里：该问题仅在 Windows 10 中重新启动进入 Linux 后才会出现。Windows 似乎将扬声器置于睡眠模式，Linux 无法正确唤醒它们。解决方法是从 Windows 完全关闭，然后启动到 Linux。