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Thread: High CPU usage during screen off

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just built 3 amd a8-3870k based itx machines asrock a75m-itx mobo , 8 gb ram.

problem: screen turns off part of power savings, started noticing noisier fan sound machine. turned on system monitor , left computer go screen off state.

found cause high fan noise. please see screenshot shows 1 core being tied 100 % cpu usage. in screenshot core (in blue) tied 100% until moved mouse bring use. thats when cpu usage comes down. reason this? 3 machines show same problem.

2 systems have fresh installs of ubuntu 12.04 64 bit , 1 upgraded ubuntu 11.10 64 bit.any ideas fellow ubuntueers?
attached images attached images

what other system specs?
have checked commands top or htop see process cloging cpu core?


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [SOLVED] High CPU usage during screen off


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