High CPU usage, temperature, and load average leaving a new Fedora 20 KDE install unbootable on Thinkpad T420i

[Sudhir Khanger]

Hello,

I installed Fedora 20 KDE on Thinkpad T420i and upgraded to the latest
which left the system unbootable. My initial impression was that this was
kernel related as kernel was upgraded from 3.11.10 to 3.13.9 and booting
into 3.11.10 was working fine.

I have tried this several times to replicate the issue.

In another try I did the same installed, upgraded and system was left
unbootable. This time I disabled kdm and logged into tty. System was
working fine. I installed i3 and used it for a while under 3.13.9 without
any problem. Then I decided to run KDE and it was working fine.

So in a nutshell install, upgrade and KDE won't boot but if you log in once
in tty or another window manager and then back into KDE and it would work
fine.

I filed a kernel bug report which might not be even valid anymore.
https://bugzilla.redhat.com/show_bug.cgi?id=1085478

I have been using Fedora 20 KDE since the release and it had always worked
fine. I am not so sure about the current oddities.

Thanks.
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