the "sudo ectool fanduty 40" command seems not working
Reported by
cl3...@nyu.edu,
Apr 18 2017
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Issue description
Chrome Version : 57.0.2987.146
OS Version: 9202.64.0
URLs (if applicable) :
Other browsers tested:
Add OK or FAIL after other browsers where you have tested this issue:
Safari 5:
Firefox 4.x:
IE 7/8/9:
What steps will reproduce the problem?
1.open shell
2.type "sudo ectool fanduty 40"
3.and the fan turns to maximum speed several seconds and return back to its previous status.
What is the expected result?
ioctl -1, errno 74 (Bad message), EC result 1 (INVALID_COMMAND)
ioctl -1, errno 74 (Bad message), EC result 6 (INVALID_VERSION)
Fan duty cycle set.
What happens instead of that?
the fan will accelerate when temperature gets high, even after typing the above command.
Please provide any additional information below. Attach a screenshot if
possible.
UserAgentString: Mozilla/5.0 (X11; CrOS x86_64 9202.64.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.146 Safari/537.36
,
Apr 28 2017
Hi, the output is the following: ioctl -1, errno 74 (Bad message), EC result 1 (INVALID_COMMAND) RO version: link_v1.2.120-1137a99 RW version: link_v1.2.145-352afa8 Firmware copy: RW Build info: link_v1.2.145-352afa8 2015-11-18 13:00:18 @build169-m2 the command is working, for several seconds and the fan speed return to its original speed. I solve this by using a for loop to set the fan frequency for every 1 second.
,
Mar 9 2018
It's possible that we have some thermal framework that is overwriting your (temporary) fan speed change. I'm not sure how to disable that though. |
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Comment 1 by aaboagye@chromium.org
, Apr 28 2017Components: OS>Firmware>EC