Neste caso, o próximo comando corrigiu o problema:
sudo modprobe snd-hda-intel
Ontem, após novas atualizações, meu som desapareceu.
lsmod
Module Size Used by
parport_pc 28152 0
ppdev 17073 0
bnep 18036 2
rfcomm 42641 0
bluetooth 228619 10 bnep,rfcomm
binfmt_misc 17500 1
snd_hda_codec_hdmi 36913 1
snd_hda_codec_realtek 78399 1
snd_hda_intel 39619 0
snd_hda_codec 136453 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
uvcvideo 80847 0
videobuf2_vmalloc 13056 1 uvcvideo
videobuf2_memops 13202 1 videobuf2_vmalloc
videobuf2_core 40513 1 uvcvideo
videodev 129260 2 uvcvideo,videobuf2_core
snd_hwdep 13602 1 snd_hda_codec
snd_pcm 97451 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
snd_timer 29425 1 snd_pcm
snd 68876 7 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec,snd_hda_intel
coretemp 13355 0
kvm_intel 132891 0
kvm 443165 1 kvm_intel
soundcore 12680 1 snd
microcode 22881 0
lpc_ich 17061 0
intel_ips 17978 0
psmouse 95870 0
serio_raw 13215 0
i915 600351 3
drm_kms_helper 49394 1 i915
ndiswrapper 283323 0
drm 286313 4 i915,drm_kms_helper
mei 41158 0
i2c_algo_bit 13413 1 i915
topstar_laptop 12837 0
sparse_keymap 13890 1 topstar_laptop
video 19390 1 i915
mac_hid 13205 0
lp 17759 0
parport 46345 3 lp,ppdev,parport_pc
hid_generic 12540 0
ahci 25731 3
libahci 31364 1 ahci
usbhid 47074 0
hid 101002 2 hid_generic,usbhid
r8169 67446 0
Meu módulo também desapareceu.
Neste caso, o próximo comando corrigiu o problema:
sudo modprobe snd-hda-intel