Audio
音頻在幾秒鐘內衰減到靜音
每當我在
ALC294執行snd-hda-intel驅動程序的設備上播放聲音時，它都會在 2 秒內消失。問題與此處描述的完全相同。在 Windows 下一切都很好，並且通過 ChromeCast 鏡像 Chrome 選項卡也會發出聲音。我也能聽到跑步的聲音aplay -D plughw:0,1 /usr/share/sounds/alsa/Front_Center.wav，我嘗試了
/etc/modprobe.d/alsa-base.conf諸如此類的各種選項options snd-hda-intel vid=8086 pid=8ca0 snoop=0options snd-hda-intel power_save=10 power_save_controller=N model=ref並且還禁用了 pulseaudio 中基於計時器的調度，但都沒有成功。
這是我係統的一些輸出：
$ 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"播放音頻時：
$ 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>這是一個問題
alsa還是一個pulseaudio問題？
不是解決方案，但我在這裡找到了問題的解釋和解決方法：問題僅在從 Windows 10 中重新啟動啟動到 Linux 後發生。Windows 似乎將揚聲器置於睡眠模式，Linux 從中無法正確喚醒它們。解決方法是從 Windows 完全關閉，然後啟動到 Linux。