[Ubuntu-x-swat] [Bug 1222602] Re: [regression] [gen3] Mesa 9.2 makes Unity unusable on Atom class hardware and 943/945 graphics controllers

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

[Ubuntu-x-swat] [Bug 1222602] Re: [regression] [gen3] Mesa 9.2 makes Unity unusable on Atom class hardware and 943/945 graphics controllers

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

[Ubuntu-x-swat] [Bug 1222602] Re: [regression] [gen3] Mesa 9.2 makes Unity unusable on Atom class hardware and 943/945 graphics controllers

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