当我关闭笔记本电脑并重新打开时，内置扬声器停止工作。但耳机和 HDMI 可以工作。
如果我重新启动，它又可以正常工作。
我尝试修改
/etc/modprobe.d/alsa-base.conf
每次添加一个：
options snd-hda-intelprobe_mask=0x01options
snd-hda-intelmodel=autooptions
snd-hda-intelmodel=thinkpadoptions
snd-hda-intelmodel=ideapadoptions
snd-hda-intelmodel=generic
它们全都不起作用。
我也试过
sudo alsa force-reload
pulseaudio -k
我尝试重新安装 pulseaudio，也尝试安装 OSS4 而不是 Alsa，但没有成功
以下是结果bash alsa-info.sh
前
http://alsa-project.org/db/?f=a7cfba1c07f7eca10ef14dbb75332d4b7eb9bcb2
恢复后
http://alsa-project.org/db/?f=9849b95672ff80c2d4313993dcb9df93c24dc68d
我尝试在全新安装的 Ubuntu 18.04 和 20.04 上进行测试，
也尝试在 Fedora 32、Manjaro 20.1 的 Live 会话上进行测试
System:
Kernel: 5.4.0-47-generic x86_64 bits: 64 compiler: gcc v: 9.3.0
Desktop: Gnome 3.36.4 Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine:
Type: N/A System: TOSHIBA product: PORTEGE Z20t-C v: PT16BE-007007FR
serial: <filter>
Mobo: TOSHIBA model: PORTEGE Z20t-C v: Version A0 serial: <filter>
UEFI: TOSHIBA v: Version 2.10 date: 12/08/2015
Battery:
ID-1: BAT1 charge: 30.1 Wh condition: 30.1/36.0 Wh (84%)
model: G71C000JQ210 status: Discharging
ID-2: BAT2 charge: 22.1 Wh condition: 27.8/36.0 Wh (77%)
model: G71C000JQ210 status: Discharging
CPU:
Topology: Dual Core model: Intel Core m7-6Y75 bits: 64 type: MT MCP
arch: Skylake rev: 3 L2 cache: 4096 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 11999
Speed: 500 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 500 2: 500
3: 500 4: 500
Graphics:
Device-1: Intel HD Graphics 515 vendor: Toshiba driver: i915 v: kernel
bus ID: 00:02.0
Display: x11 server: X.Org 1.20.8 driver: i915 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel HD Graphics 515 (SKL GT2) v: 4.6 Mesa 20.0.8
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Toshiba
driver: snd_hda_intel v: kernel bus ID: 00:1f.3
Sound Server: ALSA v: k5.4.0-47-generic
Network:
Device-1: Intel Ethernet I219-LM vendor: Toshiba driver: e1000e v: 3.2.6-k
port: efa0 bus ID: 00:1f.6
IF: enp0s31f6 state: down mac: <filter>
Device-2: Intel Wireless 8260 driver: iwlwifi v: kernel port: efa0
bus ID: 02:00.0
IF: wlp2s0 state: up mac: <filter>
IF-ID-1: wwan0 state: down mac: <filter>
Drives:
Local Storage: total: 238.47 GiB used: 13.96 GiB (5.9%)
ID-1: /dev/sda vendor: Samsung model: MZNLN256HCHP-00000 size: 238.47 GiB
temp: 36 C
Message: No Optical or Floppy data was found.
Partition:
ID-1: / size: 18.96 GiB used: 8.17 GiB (43.1%) fs: ext4 dev: /dev/sda6
ID-2: /boot size: 1.35 GiB used: 207.5 MiB (15.1%) fs: ext2 dev: /dev/sda5
ID-3: /home size: 20.06 GiB used: 5.53 GiB (27.6%) fs: ext4 dev: /dev/sda7
Sensors:
System Temperatures: cpu: 48.5 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 271 Uptime: 14m Memory: 7.69 GiB used: 1.38 GiB (17.9%)
Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17
inxi: 3.0.38