从Ubuntu 18.04 升级到Ubuntu 20.04 LTS后:内部扬声器(Audio)无法使用

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问题:

我最近从18.04 lts升级到Ubuntu 20.04 lts,重新启动后音频无法正常工作,我尝试重新安装pulseaudioalsa,但是仍然不工作,sudo apt-get install --reinstall alsa-base pulseaudiosudo alsa force-reload仍然不工作。

输出


 └─▶ inxi -SMA


System: Host: Wizard Kernel: 5.4.0-26-generic x86_64 bits: 64 Desktop: Gnome 3.36.1 Distro: Ubuntu 20.04 LTS (Focal Fossa) 


Machine: Type: Portable System: Dell product: Vostro 2520 v: N/A serial: <superuser/root required> 


 Mobo: Dell model: 0V1NDP v: A11 serial: <superuser/root required> BIOS: Dell v: A11 date: 02/24/2014 


Audio: Device-1: Intel 7 Series/C216 Family High Definition Audio driver: snd_hda_intel 


 Sound Server: ALSA v: k5.4.0-26-generic 



输出


└─▶ lspci 


00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)


00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)


00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)


00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)


00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)


00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)


00:1c.3 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 4 (rev c4)


00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4)


00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)


00:1f.0 ISA bridge: Intel Corporation HM75 Express Chipset LPC Controller (rev 04)


00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)


00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)


07:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n (rev 01)


09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)




答案1:

我提供一个解决方法:


sudo alsa force-reload



这让声卡恢复了,但它不能在重启后运行,,请参见:

https://www.maketecheasier.com/fix-no-sound-issue-ubuntu/


答案2:

sudo alsa force-reload



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