2015-04-28 13:46 GMT+02:00 Thibaut Verron
2015-04-28 10:07 GMT+02:00 Thibaut Verron
: 2015-04-28 9:37 GMT+02:00 ellanios82
: On 04/28/2015 02:20 AM, Carlos E. R. wrote:
And butane is just it, and cheap. Previously freon was optimal, till it was found how damaging it was to the ozone layer... so it was forbidden.
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- just a remark :: Electrolux swedish vacuum cleaners used to have a plug , under the air-filter , into which plug one could insert a tube to "blow" { instead of suck}
Don't worry, I know where I can get a can of compressed air, I will just need some time. ;)
I found some more information on the issue, while randomly googling. It turns out that not all archives on my past issue are on a now-deleted distribution forum, I also asked a question on superuser : http://superuser.com/q/446610/119172
So apparently I remembered things wrong, the fan sensor has always been misreporting low speeds as 4090-ish rpm. It also appears that the problem I had 3 years ago was really close to the one I have today, except that back then, pwm1_enable was working as expected (and so I could turn the fan to max speed at start, so that I could investigate the problem without the computer shutting down).
I should have kept a trace of what I did to fix the issue back then... All that I remember was that it involved booting with different acpi_osi settings, maybe tweaking some values in the /sys/class/hwmon folders, maybe also loading and unloading some modules (there were several competing drivers for eeepc acpi)...
Ok, no panic, easy things first, first the dust.
Thibaut
Just one more thing I noticed : the last update before the system stopped working properly included an update to grub2, which is (to the best of my knowledge) one of the packages with the power to break this kind of features.
I couldn't manage to revert to 2.02~beta2.35.1, so instead I reinstalled grub2 from stable (2.02~beta2.20.1.5). It didn't help. But since I have already seen non-trivially reversible changes of behavior of this bios, I must ask : was there any change in the package that could affect acpi features? For reference, the update to grub2 was in snapshot 20150421.
Thibaut
So. I bought a can of compressed air, I blowed thoroughly in the input vent, it definitely made some dust go out the output vent (= between the keyboard keys), but the cpu still overheats even when idle. The fan appears to be able to spin at reasonable speeds, since it reports 3900 RPM at some times. Based on previous experience, if the fan sensor is as accurate as before, this report should be taken as exact. However, this fan speed is only reported for a very short amount of time, as if the cooling policy specified to turn the fan to full speed only between 60 and 62°. Thibaut -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org