2.4.1 on YOSEMITE not working

[Carlo]

Originally Posted by xav

thanks for prompt answer
the terminal line made: mkdir: /Library/PrivilegedHelperTools: File exists
i did: uninstall DisplayLink, restart, repair permissions, install DisplayLink, restart
but nothing change

This is puzzling. The installer for some reason cannot create our subdirectory inside /Library/PrivilegedHelperTools
Can you please run this in the Terminal:
ls -al /Library | grep PrivilegedHelperTools
And let me know the output?

Cheers,
Carlo