TeamViewer keeps PC from going to sleep

Question

Hello. Starting with one of the new versions of TeamViewer for Linux, it stopped going to sleep mode with other programs running in the background. Instead of the expected result, after pressing the sleep button at the top of the screen messages appear stating that the kernel freezer cannot complete freezing the task after more than 20 seconds. Then the screen turns on. Tested on different versions of the 4th branch kernels (4.14, 4.20, 4.4 and so on) - with TeamViewer working in the system tray Problem remains.

aft90 · Accepted Answer

The problem is solved! There are 2 ways (my system is Sabayon-Linux):

1. Using a script in /lib64/systemd/system-sleep/ folder. I created a kill_n_start.sh script with the contents

#!/bin/sh
case $1/$2 in
pre/*)
# Execute before going to sleep
pkill TeamViewer
systemctl stop teamviewerd
;;
post/*)
# Execute after wake up
systemctl start teamviewerd
;;
esac

It started working immediately without rebooting - TeamViewer closes before PC puts itself to sleep and starts when PC leaves sleep mode.

2. The same can be achieved with a very similar script in /usr/lib/pm-utils/sleep.d/. Described in detail here: https://askubuntu.com/questions/226278/run-script-on-wakeup