“apt upgrade --with-new-pkgs”后没有音频（Ubuntu 20.04 LTS）

Question

昨天用命令升级后

sudo apt-get -y --with-new-pkgs upgrade

我在输出设备中有虚拟输出，现在我听不到声音，无论是通过扬声器还是音频插孔。

我有新内核 5.8.0-34

inxi -SA输出为：

System:    Host: matteo-swift Kernel: 5.8.0-34-generic x86_64 bits: 64 Desktop: Gnome 3.36.4 
           Distro: Ubuntu 20.04.1 LTS (Focal Fossa) 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio driver: N/A
           Sound Server: ALSA v: k5.8.0-34-generic 

似乎缺少音频驱动程序（驱动程序：不适用），但我在网上找不到

pulseaudio -vvv输出为：

I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: RealtimeKit worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 13.99.1
D: [pulseaudio] main.c: Compilation host: x86_64-pc-linux-gnu
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/pulseaudio-fQvFZE/pulseaudio-13.99.1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux x86_64 5.8.0-34-generic #37~20.04.2-Ubuntu SMP Thu Dec 17 14:53:00 UTC 2020
D: [pulseaudio] main.c: Found 8 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Running from build tree: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is e792d386e07a415da8d95fabe1e536a4.
I: [pulseaudio] main.c: Using runtime directory /run/user/1000/pulse.
I: [pulseaudio] main.c: Using state directory /home/matteo/.config/pulse.
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-13.99.1/modules.
I: [pulseaudio] main.c: Running in system mode: no
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() failed.

alsamixer输出是（与参数 -c 1,2,3.... 相同）：

cannot open mixer: No such file or directory

我已经尝试过这些帖子的解决方案：

在 Ubuntu 20.04 上没有声音

重启后 Ubuntu 20.04 中只有“虚拟输出”（声音） - 损坏的驱动程序/模块

Answer 1

不是修复，而是解决方法：如果您仍然拥有以前的内核映像（在我的例子中为 5.4.0-59），您可以通过从 Grub 菜单中选择它来启动它。作为奖励，它还解决了蓝牙问题。

碰巧我没跑apt autoremove...

D .