Haswell too! (with WiFi adapter enabled)

Date: 2016-04-14 03:55 pm (UTC)
From: (Anonymous)
Hi Matthew,
Same thing happens on older microarchitectures too. My laptop (Acer C720) is able to reach pc7 if I 'rmmod ath9k'. With ath9k loaded it is limited to pc3 (but cc7). That happens even if I enable power savings on the ath9k module (
which seems to cause full system crashes from time to time)(!).

Thankfully the battery life is still pretty good (7~10 hours).
Identity URL: 
Account name:
If you don't have an account you can create one now.
HTML doesn't work in the subject.


If you are unable to use this captcha for any reason, please contact us by email at support@dreamwidth.org

Notice: This account is set to log the IP addresses of everyone who comments.
Links will be displayed as unclickable URLs to help prevent spam.


Matthew Garrett

About Matthew

Power management, mobile and firmware developer on Linux. Security developer at Google. Ex-biologist. @mjg59 on Twitter. Content here should not be interpreted as the opinion of my employer.

Expand Cut Tags

No cut tags