GNOME 3.12 Puts The X.Org Log In The Systemd Journal
Written by Michael Larabel in X.Org on 27 March 2014 at 12:13 AM EDT. 10 Comments
A useful tip shared by X.Org input expert Peter Hutterer is that with today's GNOME 3.12 release the GNOME Display Manager is no longer writing X.Org Server logs to the file but is being stored within systemd's journal.

As most Phoronix readers will know who experiment with their Linux graphics drivers, when the X.Org Server fails to start usually the first place to look to clues for the failure is generally the /var/log/Xorg.0.log file. If it was one restart ago, /etc/X11/Xorg.1.log. With the GNOME 3.12 GDM, there aren't text log files being generated but systemd's journal component is handling the system log storage. Now to retrieve the X.Org Server logs, the journalctl command needs to be used for fetching the logs, e.g. journalctl -e /usr/bin/Xorg.

Other tips for reading the Xorg.0.log file on the systemd journal can be found via Peter's blog. The good news in moving to the systemd journal is that more logs are stored from the X.Org Server rather than just the past two processes.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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