Re: F22 unusable - system freezes on login

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On 06/18/2015 02:27 PM, Matthew Woehlke wrote:
On 2015-06-18 17:16, Rick Stevens wrote:
On 06/18/2015 01:52 PM, Matthew Woehlke wrote:
On 2015-06-18 14:04, Paul Cartwright wrote:
On 06/18/2015 12:54 PM, Matthew Woehlke wrote:
(¹ *Once and only once* I was able to log in, but the system froze as
soon as I tried to run an application. Also, I can log in in
single-user
mode, but this isn't good for much but running dnf and fiddling with
enabled services. I *have* applied all updates as of a few hours ago to
no effect.)

   do you have a choice of logins, like KDE/gnome??
maybe you didn't allow enough space for root..

Does "TTY" count? I'd be quite surprised if changing DE works when I
can't log in at a TTY either. It *might* be kdm, though I don't claim to
know how to change that.

BTW, 'systemctl start graphical.target' from single-user mode also kills
the system.

Then you definitely have a graphics issue. Bring it up in single user
mode and have a look at the /var/log/Xorg.0.log file to see if there's
anything that might point to an issue. I had an issue on one machine
with nouveau on a specific video card. Using an nVidia binary blob
driver overcame that.

It's an AMD (GPU, not CPU). Anyway, I am allergic to proprietary
software :-).

Nothing in any of the Xorg.*.log*'s jumps out at me.
~user/.xsession-errors is empty.

Maybe we can catch log entries before it completely dies. Bring the
system up in single user mode, then edit /etc/systemd/journald.conf.
Find the line:

	#ForwardToSyslog=no

Change it to:

	ForwardToSyslog=yes

and save the file. This should cause journald to forward log entries
to the old system logger. Reboot and force the crash. Hopefully, the
messages will get logged to /var/log/messages before you lose the log
daemon.

Reboot again to single user mode and look at /var/log/messages to see
if you caught it. Change the line in /etc/systemd/journald.conf back
to put things back the way they were.

NOTE: I've not tried this myself. Others have told me it works and I'm
just passing it along.
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, AllDigital    ricks@xxxxxxxxxxxxxx -
- AIM/Skype: therps2        ICQ: 226437340           Yahoo: origrps2 -
-                                                                    -
-   UNIX is actually quite user friendly.  The problem is that it's  -
-              just very picky of who its friends are!               -
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