Sound disappears on Linux Mint, what should I do?

Question

linux

Hello.
My aunt brought a laptop from abroad for my mother, it had VIN 10. First of all, of course, I upgraded the laptop to Linux. My choice fell on Linux Mint, the easiest thing for a mother to learn.
It would seem that everything works and her Odnoklassniki work with the same habit as in "Windows", but the sound constantly disappears on the laptop. It helps either rebooting, or inserting headphones (you take it out - there is no sound), or switching to sleep mode, and then back. But the sound only returns for a couple of minutes.
What can I do to make it permanent? With Linux for now. Notebook from Toshiba.
Note specs (hopefully):

spoiler

H/W path Устройство Класс Описание
===================================================================
system Satellite L745D (PSK16C-00H00
/0 bus Torpedo
/0/0 memory 128KiB BIOS
/0/21 memory 4GiB Системная па�
/0/21/0 memory 2GiB SO-DIMM DDR3 Синхр�
/0/21/1 memory 2GiB SO-DIMM DDR3 Синхр�
/0/2d processor AMD A6-3400M APU with Radeon(
/0/2d/2e memory 512KiB L1 кэш
/0/2d/2f memory 4MiB L2 кэш
/0/100 bridge Family 12h Processor Root Com
/0/100/1 display BeaverCreek [Radeon HD 6520G]
/0/100/1.1 multimedia BeaverCreek HDMI Audio [Radeo
/0/100/4 bridge Family 12h Processor Root Por
/0/100/4/0 enp1s0 network AR8152 v2.0 Fast Ethernet
/0/100/5 bridge Family 12h Processor Root Por
/0/100/5/0 wlp2s0 network RTL8188CE 802.11b/g/n WiFi Ad
/0/100/11 storage FCH SATA Controller [AHCI mod
/0/100/12 bus FCH USB OHCI Controller
/0/100/12/1 usb4 bus OHCI PCI host controller
/0/100/12.2 bus FCH USB EHCI Controller
/0/100/12.2/1 usb1 bus EHCI Host Controller
/0/100/13 bus FCH USB OHCI Controller
/0/100/13/1 usb5 bus OHCI PCI host controller
/0/100/13.2 bus FCH USB EHCI Controller
/0/100/13.2/1 usb2 bus EHCI Host Controller
/0/100/13.2/1/2 multimedia TOSHIBA Web Camera - MP
/0/100/14 bus FCH SMBus Controller
/0/100/14.2 multimedia FCH Azalia Controller
/0/100/14.3 bridge FCH LPC Bridge
/0/100/14.4 bridge FCH PCI Bridge
/0/100/14.5 bus FCH USB OHCI Controller
/0/100/14.5/1 usb6 bus OHCI PCI host controller
/0/100/16 bus FCH USB OHCI Controller
/0/100/16/1 usb7 bus OHCI PCI host controller
/0/100/16.2 bus FCH USB EHCI Controller
/0/100/16.2/1 usb3 bus EHCI Host Controller
/0/101 bridge Family 12h/14h Processor Func
/0/102 bridge Family 12h/14h Processor Func
/0/103 bridge Family 12h/14h Processor Func
/0/104 bridge Family 12h/14h Processor Func
/0/105 bridge Family 12h/14h Processor Func
/0/106 bridge Family 12h/14h Processor Func
/0/107 bridge Family 12h/14h Processor Func
/0/108 bridge Family 12h/14h Processor Func
/0/1 scsi0 storage
/0/1/0.0.0 /dev/sda disk 500GB Hitachi HTS54505
/0/1/0.0.0/1 /dev/sda1 volume 462GiB Том EXT4
/0/1/0.0.0/2 /dev/sda2 volume 3557MiB Extended partition
/0/1/0.0.0/2/5 /dev/sda5 volume 3557MiB Linux swap / Solaris
/0/2 scsi1 storage
/0/2/0.0.0 /dev/cdrom disk CDDVDW TS-L633F
/0/2/0.0.0/0 /dev/cdrom disk

Answer 1

Can i ask you? And why demolished 10-ku and put Linux? Moreover, this is not the system that you know.

Answer 2

The next time the sound disappears, try running `dmesg` in the console - it might say something interesting. And so it's dark.
You can also play around with `pavucontrol` (I don’t know if I need to set it in Mint separately from PulseAudio or not), disable output to HDMI, for example.