Linux Dell Too Slow due to Adapter Wattage Problem

My DELL notebook, E6320, occasionally got a problem for while.

When it booted, its BIOS shown that it could not get wattage information from an adapter.

At the time, I just omitted and used it as usual.

But the notebook did not work fast as it was ,and I did not know why.

Until I lost my patience, then I tried to find out the cause.

Since the problem related to lacking of wattage information, the BIOS tried to save a power consumption as much as possible.

As a result, it reduced the CPU frequency to minimum value.

For problem solving method, please follow the link below:





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