Fan speed in Debian 12 on Acer 713 2W KLED

I recently installed Debian 12 on my Acer 713 2W, KLED. It was full UEFI ROM from MrChromebox. It’s running well, looks good, sounds good (thanks to the audio fix), but the fans are roaring. The fans were mostly quiet under ChromeOS with the occasional spin up. Now can feel a breeze when looking down my screen at the vents and my lap is getting cold.

I installed lm-sensors and am getting CPU temps in the mid- to high-30s. I was able to get ectool (from WeirdTreeThing) to manually set fan speed using fanduty and set it back to auto and it goes right back to full bore. ectool gives similar temps to sensors, too.

Are there any fixes out there aside from manually setting speeds with ectool? I couldn’t find any fan speed controls within coreboot settings.

I declined to use the custom kernel with the audio tool since I didn’t want to do that just for an audio issue. Does the custom kernel fix more than just audio?

Incidentally ectool console was reading battery at like 93% while charging but my system bar showed 100%. Not related, but that’s an investigation for another day.

So, in my continued search for a solution I went back to the Post Install page on the Chrultrabook Docs site. I had repeatedly missed the “TIP” at the top of the page for some reason. I grabbed the Chrultrabook-Tools.

The appimage doesn’t run because it wants a different version of glibc (2.38). I’m on 2.36. I’m not ready to mess with my glibc, can I make my own appimage with my version?

I’m far from an expert but I know enough to know that I don’t know enough.

Hi, Mr_RustyIron,

I am in the same boat as you with the same machine. Maybe posting here will bring this to the moderator’s attention, as I would like to be able to install the Chrultrabook-Tools as well, but run into the same glibc issue. I may be willing to try upgrading my glibc’s but we’ll see.

In the meantime, can you send me the ectool package you got from WeirdTreeThing? I can’t find it online. I’m willing to manually set the fan speed for now to keep these fans from running all the time.

Thanks,

Sebastian

Running the prior version of chrultrabook-tools worked, but the window is really small…Anyway.

Sebastian

You can get ectool from Artifacts · Dustin L. Howett / ectool · GitLab

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Just put Fedora on my Acer 713 2w (2020 model). Like the original poster, my fan was mostly off and would spin up ever once in awhile in ChromeOS when core temps would hit 60c(ish). Now they are on all the time, but not full bore. I’ve been keeping an eye on temps with Xsensors and for the fan to turn completely off it needs to be below 27c (80f). Thats room temperature. I had to put an ice pack under the laptop to get the temp low enough to even see if the fans turn off, which they did. Anywhere above 28c the fans turn on, however they are progressively louder and faster as temp rises. I guess that the way it should work but I think they come on with the temp way too low. For example right now the cores are 35c and the fans are running medium-low. The bottom of the computer doesn’t feel the slightest bit warm.
Lastly I took the heat sink / fan unit off to take a look. The heat sink is this long copper piece that goes form the chip to the fan which is about 6 inches. Seems like a fan right on top of the chip would work better. The thermal paste was super dry also. And lastly there was so much lint/dust between the fan body and the fins of copper heat sink. I removed it all, but didn’t help lower fan speed or heat of cores.

https://imgur.com/a/IO8mHZi