Comment 17 for bug 258584

There seems to be some other problems with the settings of resolution. Today, I changed the resolution to the maximum and one screen became black. Then I had to configure settings with "displayconfigure_gtk" in Shell. Then, my both screens became black. I restarted and both screens start to work again.

I suggest that there would be a time period in which you can decide about the settings. It is frustrating to restart the computer. Perhaps, some key combination would be enough.