This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
See http://wiki.x.org/wiki/GitPage for git access instructions.

X.Org X Server 1.18.99.1
Release Date: 2015-11-09
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.6.4 x86_64 Gentoo
Current Operating System: Linux Fortune 4.6.4 #1 SMP PREEMPT Fri Jul 15 15:01:41 MST 2016 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.6.4 root=/dev/sda1 ro init=/usr/lib/systemd/systemd loglevel=3
Build Date: 15 July 2016  02:32:50PM
 
Current version of pixman: 0.34.0
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.2.log", Time: Fri Jul 15 16:46:11 2016
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
xinit: connection to X server lost

waiting for X server to shut down X: /var/tmp/portage/x11-base/xorg-server-9999/work/xorg-server-9999/present/present_screen.c:95: present_clear_window_flip: Assertion `flip_pending->abort_flip' failed.