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#1 2014-03-10 22:30:54
- fragfutter
- Member
- Registered: 2013-05-20
- Posts: 18
Reaching Package C7 Idle state
I'm runnng archlinux on a asus h81t mainboard with a pentium G3220 processor. I try to minimize power consumption in idle.
Kernel 3.13 is running, using intel_pstate as performance governor. The CPU cores are most of the time (99.8%) in C6 state (no C7 on pentium). But Package C states never go below PC3. In addition CPU Frequencies are never lowered to 800MHz, they stay on the maximum 3Ghz.
I installed a windows 8 for reference. In windows i reach PC6. Which drops power by another 7Watt.
Any hints what i am missing?
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#2 2014-03-10 23:24:26
- graysky
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Re: Reaching Package C7 Idle state
Similar problem? https://bbs.archlinux.org/viewtopic.php?id=178315
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#3 2014-03-11 06:57:33
- fragfutter
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- Registered: 2013-05-20
- Posts: 18
Re: Reaching Package C7 Idle state
Yes, similar issue. Except pcie aspm is working on my board.
Last edited by fragfutter (2014-03-11 07:22:46)
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#4 2014-03-25 09:13:49
- fragfutter
- Member
- Registered: 2013-05-20
- Posts: 18
Re: Reaching Package C7 Idle state
replaced the r8169 with r8168. Now 97% package c6 once the monitor goes into standby via dpms
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