[CentOS] CentOS 7, ATI video, ex-X, still fighting

Mon Dec 19 15:08:07 UTC 2016
m.roth at 5-cent.us <m.roth at 5-cent.us>

Still trying to get it running. Updated CentOS 7, ATI video card, trying
to use the radeon driver, and, using the previous kernel, X appears to
come up, but gdm fails; with the 514 kernel, X fails to start.

And here's a twist: I just rebooted, with radeon.modeset=1 on the kernel
line... and for no reason I know of, I get *six* logs, Xorg.[0-5].log.
Does this suggest anything to anyone? I can't imagine it's trying to start
X six times....