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About half the time when I lock the screen, the computer becomes unresponsive and the clock on the lock screen does not update. A hard reset does work.

I presume that there's some log that would be enlightening, but I'm new to Fedora and I have no idea where the logs are. There's a README in /var/log that recommends using something called journalctl, but it doesn't say where the actual files are located.

  • Hardware: HP EliteBook 850 G3
  • OS: Fedora 24
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    Are you able to switch TTYs and log in? CTRL + ALT + F2 to change to TTY2. If you can log in that way try some usage monitoring commands like top, iostat, or ps. – Centimane Sep 19 '16 at 16:23
  • Today, it seemed to go to sleep when I locked the screen. The monitors never came on (built-in or external). The keystroke had no effect at that point. – Thom Smith Sep 19 '16 at 19:58
  • Does /var/log/messages or /var/log/Xorg.0.log.old say anything after rebooting? – Centimane Sep 19 '16 at 22:59
  • I don't believe that either of those files exists. I guess log files are an optional add-on in Fedora 24 with systemd? I will verify this tomorrow. – Thom Smith Sep 20 '16 at 3:31
  • /var/log/messages should definitely exist – Centimane Sep 20 '16 at 12:24
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Without arguments, all collected logs are shown unfiltered:

journalctl

You can also try installing gnome-system-log to have a log viewer tool:

su -c "yum install gnome-system-log"

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