Problem to sign in to my Unity Account

Hey,
i just started to learn unity3d. Wherefore i installed unity3d on two of my computers. On my Desktop PC everything works well till now, but on my Surface Pro 3 I am not able to sign in to my unity account. When i tap into the email-inputbox, the display keyboard appears, but it don’t show any reaction when i tried to use it. When i use the physical keyboard, the displaykeyboard disappears, no other reaction, too.
Same problem at the password-inputbox.
Both, displaykeyboard and physicalkeyboard are working in other application well.

Do anyone got an idee how to fix the problem?

Problem is solved! After making a right click on the input box and selecting nothing in the upcoming menu i was able to fill in my login data.

Try this one on your terminal.

“LD_PRELOAD=/lib/x86_64-linux-gnu/libresolv.so.2 /opt/Unity/Editor/Unity”

I hope it helps.