I'm not sure if this fits into this particular bug, but maybe it helps
to locate the problem...
I have a netbook with Intel Atom N455 and GMA3150. The netbook has an
external monitor attached to it via a KVM switch (USB mouse and
keyboard, VGA) and has run Ubuntu since 11.10 (13.10 upto yesterday
Good to hear it's solved for you!
The strange thing is that I just replaced that broken CRT with the new
LCD monitor. Just disconnected the old monitor and connected the new
one. Boom, high CPU usage :-(. I didn't install any new software, etc.
I never had this before in 2,5 years and as I said I
Okay, I did a few more tests...
- the external monitor is connected at boot time, I disconnected it when
the login screen is displayed, logged in, no high cpu usage
- logged out, connected the monitor, logged in, HIGH CPU USAGE
- logged out, disconnected the monitor, logged in, no high cpu usage
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