Hi Venkata, Can you please let me know the steps which you have followed for re-installing the GNOME? I am having a similar problem on one of our system. Regards Hersh On 7 July 2016 at 06:26, Venkata Balaji N <nag1010 at gmail.com> wrote: > On Thu, Jul 7, 2016 at 10:31 AM, Frank Cox <theatre at melvilletheatre.com> > wrote: > > > 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 > > Regards, > VB > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >