Crash in g_main_context_dispatch()

 * Cinnamon version: Cinnamon 3.4.4 (Gtk 3.18.9-1ubuntu3.3)
 * Distribution: Linux Mint 18.2 Sonya
 * Graphics hardware *and* driver used: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
 * 32 or 64 bit: 64 bit

Issue
Cinnamon crashes when unlock the screen.

Steps to reproduce
If I lock the screen and let the PC more than 15hs without unlock/use, when I unlock cinnamon displays a message "Cinnamon just crashed" (or something like this).

Expected behaviour
No cinnamon crash

Other information
Issue starts after upgrade from Linux Mint 18.1 to Linux Mint 18.2 + lightdm.

[mtwebster]

What type of connections are your monitors (hdmi/dp/dvi??) - also, do you have xrandr disabled for any reason? (If you're not sure, the answer is likely no)

Connectios: Display Port and VGA
xrandr not disabled

Issue starts after Linux Mint 18.2 update.

[mtwebster]

I'm hoping you'd be willing to gather a bit more info on this.

# Download our cin-debug script and make it executable.
# You can just paste this url into a browser and get it that way if you want.

wget https://raw.githubusercontent.com/linuxmint/Cinnamon/master/utils/cin-debug
chmod +x ./cin-debug

# Install a few things...

sudo apt-get install gdb screen cinnamon-dbg
# gdb is the debugger.
# screen lets you have 'virtual' terminals that can be doing something independent of
  any reliance on the current graphical environment.
# cinnamon-dbg brings in debug symbols for pretty much all the relevant libraries
  we use throughout cinnamon


# With cinnamon running, open a terminal, navigate to the folder where cin-debug is...
# start screen, you might get an intro screen, just continue:

screen

# start our script, which attaches to the running cinnamon process
# This requires a password, gdb needs root to attach to running processes

./cin-debug cinnamon

# The debugger will start up, ending with <continuing.. 

Ctrl-A, Ctrl-D       # detaches back to your original 'terminal'

From here, just work normally, leave it running, etc... If/when cinnamon does crash, that debugger instance should save a timestamped file in your home folder, something like:

cinnamon-2017-07-05-9:52:44.log

Note: If you reboot or logout, or restart cinnamon in some other way, you'll have to go thru the debugger steps again.

Thanks

Looks like the issue was fixed after I installed the intel-microcode 3.20151106.1

Will keep monitoring...

Unfortunately the problem continues... This time my Linux Mint 18.2 was found completely frozen.

[incomplete log - removed]

[leigh123linux]

@Trapizomba install cjs debug symbols as the backtrace is incomplete

[mtwebster]

He can't.. just realized there is no libcjs-dbg package.

[mtwebster]

Added one...

git clone https://github.com/linuxmint/cjs.git
cd cjs
git checkout 3.4-maintenance
sudo apt-get build-dep cjs
dpkg-buildpackage
cd ..
sudo dpkg -i *cjs*.deb

Sorry...

user@linux ~/cjs $ sudo apt-get build-dep cjs
[sudo] password for user: 
Reading package lists... Done
E: Unable to find a source package for cjs

[mtwebster]

Open software sources and enable source code repositories. Then refresh the cache. This should let that command work.