I don't know where to post this, but the problem is that GNOME 3 freezes the screen when the system asks for a password. The user cannot interact with other windows when the password request is on the screen. It may be impossible to search for the asked password in a website you uploaded it to or in a memory device, because sometimes when you click "Cancel" the process requesting the password fails and you must start from the beginning. Or when it asks for something not so important (like your email/social network account password), the screen is frozen and you can't enter more important data in other windows. I think that a password request should be treated as a normal window (as in GNOME Fallback). Or if an easy solution is already there (without coding), show me how to do that.