Monitors-periodically-turn-off on Ubuntu 18.04

[john1111]

The solution was found here for me (on Ubuntu 18.10 with Dell XPS13 and D6000 dock)

https://www.displaylink.org/forum/sh...t=65476&page=2

#### Disable audio suspend
* `sudo gedit /etc/pulse/default.pa`. Comment out the line indicated below.

```
### Automatically suspend sinks/sources that become idle for too long
# load-module module-suspend-on-idle
```