Num LED state does not correspond with actual state after boot

[cl-netbox]

After login Num-Lock is active and the LED on the keyboard is turned on.
When starting to type the root password, the LED immediately goes off.
This seems to be a bug which actually is appearing in Ubuntu 15.10.
It happens when starting to type too early after booting the computer.
It also happens when opening an application with root privileges too early.
It does not happen when waiting a few minutes or after the screen turns off (inactive).
Workaround : Wait for some time before starting to type or pressing the Num key twice.

[Byte Commander (bytecommander)]

Same was the problem on 15.04.
If I remember right, it was not yet present on 14.10 though, but I might be wrong.
Switching to another TTY and back also restores the LED state.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1520237/+editstatus and add the package name in the text box next to the word Package.

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[kairo (karirax)]

I confirm, same problem here

[kairo (karirax)]

yep