many photoshop cc users may face this problem many times.
while using selection tools or while using text tool in photoshop screen turns to black. problem may be caused by defective, unsupported,
or incompatible graphics processor or graphics driver. that has many solutions. one of those is here.
1. Open photoshop and go to edit->preferences->performance.
2. then in graphics processor settings. click on advanced settings.
3.Then a palate of advanced graphics processor settings open in that set drawing mode to basic. Then close photoshop and open again.
4. You can also visit below link for more options or more information.