我最近刚刚从 19.10 升级到 20.04，并进行了完全重新安装，现在我的声音无法正常工作。我已经尝试强制重新加载 alsa，并修改 grup 启动选项以包含“snd_hda_intel.dmic_detect=0”，如来自 superuser.com 的提示。以下是 inxi -SMA 的输出
System: Host: lokiLinux Kernel: 5.4.0-26-generic x86_64 bits: 64 Desktop: Gnome 3.36.1
Distro: Ubuntu 20.04 LTS (Focal Fossa)
Machine: Type: Laptop System: Apple product: MacBookPro13,1 v: 1.0 serial: <superuser/root required>
Mobo: Apple model: Mac-473D31EABEB93F9B v: MacBookPro13,1 serial: <superuser/root required> UEFI: Apple
v: 243.0.0.0.0 date: 01/31/2020
Audio: Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel
Device-2: Broadcom and subsidiaries 720p FaceTime HD Camera driver: bdc-pci
Sound Server: ALSA v: k5.4.0-26-generic
以下是来自 lspci 的内容
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Iris Graphics 540 (rev 0a)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.2 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1d.1 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #10 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO UART Controller #0 (rev 21)
00:1e.3 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO SPI Controller #1 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Mass storage controller: Apple Inc. S3X NVMe Controller (rev 11)
02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4350 802.11ac Wireless Network Adapter (rev 05)
03:00.0 Multimedia controller: Broadcom Inc. and subsidiaries 720p FaceTime HD Camera
04:00.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015] (rev 02)
05:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
05:01.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
05:02.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
05:04.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02)
06:00.0 System peripheral: Intel Corporation JHL6540 Thunderbolt 3 NHI (C step) [Alpine Ridge 4C 2016] (rev 02)
07:00.0 USB controller: Intel Corporation JHL6540 Thunderbolt 3 USB Controller (C step) [Alpine Ridge 4C 2016] (rev 02)
有什么想法可以解决这个问题吗？
提前致谢。
干杯