Brian, There is a kernel bug that seems to affect systems with older Intel processors. I have a Dell Laptop that on bootup of kernel 2.6.32-754.3.5.el6.x86_64 will display a white square in the upper left corner of the screen and halt. If I roll back to the 2.6.32-696.30.1.el6.x86_64 version kernel all is well. More info at 0015186: Cannot boot with kernel-2.6.32-754.3.5.el6.x86_64 - CentOS Bug Tracker | | | | | | | | | | | 0015186: Cannot boot with kernel-2.6.32-754.3.5.el6.x86_64 - CentOS Bug ... | | | Ed On Saturday, September 8, 2018, 2:38:58 PM EDT, Brian Bernard <brian.brianbernard at gmail.com> wrote: Hello, Ever since I updated my CentOS 6 machine from 6.9 to 6.10 Xorg will not start with the 2.6.32-754 kernels. Instead the computer will reboot. This issue does not exist with the 2.6.32-696.30.1 kernel from CentOS 6.9 that I still have on my system. Has anyone else encountered this issue, and if so, how did you rectify it? Thank you for any help. Brian Bernard _______________________________________________ CentOS mailing list CentOS at centos.org https://lists.centos.org/mailman/listinfo/centos