Cinnamon freezes, only mouse pointer can move around. Linux Mint 19.2

 * Cinnamon version: 4.2.4 (normal distribution)
 * Distribution - Mint 19.2 Tina  (updated from v19.1 daily)
 * Graphics hardware *and* driver used: AMD Ryzen 5 2400G Integrated Graphics
  on motherboard Gigabyte M450 GAMMING (1920 x 1080) mode
 * 32 or 64 bit: 84bit version
 * Attach /home/<username>/.xsession-errors, or /var/log/syslog

**Issue**
Once a day screen freezes, mouse pointer still moving, keyboard not responding, eventually music keep playng. HD light flashing every 3sec. Hard reset via power button to solve. Trying Control-Alt-F7 or F8 (allways) but only one time in 50? keyboard was responding.

**Steps to reproduce**
Intermittent, out of my control, trying uninstall and solve problems in log but no success yet.

**Expected behaviour**
NEVER FREEZE

**Other information**
No info

** /var/log/syslog attached
[syslog.tar.gz](https://github.com/linuxmint/cinnamon/files/3631455/syslog.tar.gz)
`
Kernel		: Linux 5.0.0-23-generic (x86_64)
Version		: #24~18.04.1-Ubuntu SMP Mon Jul 29 16:12:28 UTC 2019
C Library		: GNU C Library / (Ubuntu GLIBC 2.27-3ubuntu1) 2.27
Distribution		: Linux Mint 19.2 Tina
-Current Session-
Computer Name		: Camburi
User Name		: lcsd (Luiz Domingues)
Language		: pt_BR.UTF-8 (pt_BR:pt:en)
Home Directory		: /home/lcsd
-Misc-
Uptime		: 1 hour 33 minutes
Load Average		: 0,20, 0,30, 0,34
Available entropy in /dev/random		: 3768 bits (healthy)
`

Start by reviewing the attached /var/log/syslog archive and the requested /home//.xsession-errors output, focusing on entries around the freeze. The issue is intermittent and hardware-specific; done means identifying a reproducible cause and validating a fix for the Cinnamon freeze.