Comment 53 for bug 1270579

No problem, please just tell me against which package?
In the meantime, here's the new confusion:
I purged Nvidia 381.09 driver and reinstalled default Nvidia 375.39 via additional drivers.
Now the situation has returned to initially reported problem: everything is ok with adjusting screen brightness, but Ubuntu 17.04 again doesn't save my brightness settings after reboot.