How can I use DisplaylinkMonitor by Single and Main monitor?

[tricks.telex]

I use Ubuntu 16.04.

I could configure Displaylink monitor settings manually.

xrandr --newmode 1366x768_60 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
xrandr --addmode DVI-I-1 1366x768_60
xrandr --output DVI-I-1 --mode 1366x768_60


I want to config at startup. I writed above code at rc.local but this attempt is not success.
Next, I created my systemd service as thinkvision.service.

* thinkvision.service

[Unit]
Description=ThinkVision Settings
After=displaylink.service

[Service]
Type=oneshot
ExecStart=/opt/bin/thinkvision.sh
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target



*thinkvision.sh

#!/bin/bash

xrandr --newmode 1366x768_60 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
xrandr --addmode DVI-I-1 1366x768_60
xrandr --output DVI-I-1 --mode 1366x768_60

exit 0


this attempt is also failure..


Please tell me where to write above code.

[Vanadium]

The x server must run when you issue the commands. If the command do not require root access, you could run them as a user startup program (Startup Applications in Unity Dash).
Here (http://askubuntu.com/questions/637911/how-to-run-xrandr-commands-at-startup-in-ubuntu) I see a probably better suggestion, which involves placing the script under /etc/X11/Xsession.d/