[CentOS] CentOS-7 Screen black after boot

Thu Jul 7 00:56:03 UTC 2016
Venkata Balaji N <nag1010 at gmail.com>

On Thu, Jul 7, 2016 at 10:31 AM, Frank Cox <theatre at melvilletheatre.com>

> On Thu, 7 Jul 2016 10:16:23 +1000
> Venkata Balaji N wrote:
> > i left the system locked overnight.
> What are you using to lock the screen?  Some of the screensavers can be
> bad news on certain video cards (as I've learned the hard way) and can
> cause just exactly that to happen.  In that case, the screensaver has
> locked up your video card.
> If this is the case, try a different screensaver.  I suggest "black screen
> only" for testing purposes.

I did the following and rebooted, all worked fine. I am not sure if that is
the solution.

[root at buildhost ~]# systemctl set-default graphical.target