Hi foybj!
Thanks for your report.
Could you please gather logs when next time when you hit this problem after reboot.
Please follow
this instruction to get Support Tool and gather logs.
In addition to the logs collected with Support Tool - could you examine your
Console/System Diagnostic Reports and/or
Console/User Diagnostic Reports if contains any DisplayLink dump files with relative timestamp? Please attach them to the gathered logs zip file.
Thanks
Adam