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Thread: maximum CPU frequency when on AC

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hello,

using ubuntu 12.10 32-bit on laptop dell inspiron n4030 ati mobility radeon hd 5430 series.

problem is:

when laptop on ac adapter, cpu frequency maximum (2.39 ghz), that's make out loud fan, try change frequency, returns automatically (to maximum) long laptop plugged in.

on other hand ubuntu seems (automatically) scaling processors correctly in battery-mode. nevertheless cannot change cpu frequency in cases.

do? can't work comfortably when laptop plugged in ac adapter!

this surely controlled bios. should check bios settings in regards performance, when on ac mode, there should "balanced mode" (allowing scaling, , controlling noise of fan), set max performance when on ac mode.


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] maximum CPU frequency when on AC


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