Solution
LabVIEW 2017:
Run the
command xrandr --display :0 --auto from a script or within LabVIEW. This will re-run the cRIO's auto-detection and the Embedded UI should appear on the monitor. The command doesn't need special privileges and can be run as
lvuser. For more information on user privileges, read the Access Control section of the
NI Linux Real-Time Security User Guide.
LabVIEW 2015 or LabVIEW 2015 SP1:
- Download the attached
80-video-hotplug.rules file. - Log in to your cRIO as an administrator. Note: The directory you will need to access is a system folder that requires administrator privileges to modify.
- Copy
80-video-hotplug.rules to /etc/udev/rules.d/ - Restart your cRIO.
You may now disconnect and reconnect the monitor from the cRIO and the Embedded UI will reappear on your monitor.
Alternatively, you can also create and move
80-video-hotplug.rules via SSH:
- Log into your cRIO via SSH as an administrator.
- Enter the following command into the console:
cd /etc/udev/rules.d/ && echo 'ACTION=="change", SUBSYSTEM=="drm", RUN+="/usr/bin/xrandr --auto --display :0"' >80-video-hotplug.rules - Confirm the file has been created in the correct location.
- Restart the cRIO.