On Fri, December 16, 2016 10:08 am, m.roth at 5-cent.us wrote: > A user running gnome came in this morning, clicked on the application > menu... and it was much shorter than he expected. He could get to firefox, > and googled about refreshing that... and found something that told him to > reboot. > > And that's it: I cannot get X up, at all. I just get the "oh, no, > something failed, please log out and try again". > > Fully updated CentOS 7, [AMD/ATI] Oland [Radeon HD 8570 / R7 240/340 OEM], > and, like most of us, he uses two monitors. > . > I've tried removing the xorg.conf, and renaming > /etc/X11/xorg.conf.d/20-fglrx.conf, which was there (I didn't put it there > when I built the box a few months ago.) What if you boot into runlevel 3 (that is no gdm or kdm...), log in into virtual console, rename all X related stuff in /etc, and from command line execute startx ? What do you get spit on console, and what do you get in xorg log? Incidentally, do you have security system that watches file changes? That may tell you a lot. As an alternative, you may take a look at differential backup - whatever was newly backed up may tell you a story. Unless backup uses timestamps, and timestamps were fiddled with when change happened. Valeri > > I don't see anything even vaguely useful in the Xorg logs... and, for that > reason, not sure why I'm on Xorg.3.log, other than it may have been > created by startx. I've tried that, both as root, and as myself, get that > "oh, no" screen, and when I hit enter to log out, I get a live but black > screen, completely unresponsive. > > I don't see any errors in dmesg or messages, and I've tried reinstalling > xorg-x11-drv-ati, which gives me > xorg-x11-drv-ati-7.6.1-3.20160215gitd41fccc.el7.x86_64. > > Does anyone have any ideas on this? I can't even get a single screen > working, though it's mirrored, of course, in text mode. > > mark > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++