Question

2

ACPI 30k+ interrupts per second

rated 0 times [ 2] [ 0] / answers: 1 / hits: 1086 / 2 Years ago, wed, august 10, 2022, 4:06:39

My computer is currently doing something like 30k+ interrupts per second. This causes battery issues as well as the CPU being always stuck at the highest speed, making it very hot (overheating.. 75C at IDLE)

Powertop info:

99.4% (32052.4) [acpi] <interrupt>

0.3% (115.9) [iwlagn] <interrupt>

Just to clarify this started suddenly a couple of days ago. It didn't have this issue before (though I had a tonne of headaches with Linux on my computer in general..)

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attagjump

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3 Years ago

answered 2 Years ago itagde · Accepted Answer

The reason apparently lies with the BIOS. Something has changed the BIOS... which caused this problem. Fixed via a reflash of the latest BIOS image from the Lenovo's support site under Windows.

I noticed when Windows had the same issue of interrupts taking a lot of CPU, which happened to originate from ACPI.sys

The only thing I installed prior to this happening was the fglrx 11.7 update... IDK if this had anything to do with it, but it's the only thing that I've installed.