Sebastião Guerra composed on 2017-07-27 19:58 (UTC-0300):
Here is the logs
That did not help much.
Please provide output from
inxi -c0 -G
and/or
lspci --nnk | grep -a5 VGA
Given that you had Gnome and Mate working, I suspect your gfxcard requires firmware for Xorg that is not installed, or a newer kernel than the old 3.10 that CentOS provides, or a proprietary Xorg driver that is not installed.