03-06-2018 10:51 AM
I have a slightly obscure problem with my fan which occurred for the first time about a week ago then again twice today.
The problem is that my fan suddenly goes to full speed only to immediately afterward die entirely, then it sounds like he tries to recover but quickly goes to full speed and the whole process repeats. One cycle takes about 5 Sec. and it keeps doing this even if I reboot in between. After quite some repetitions (i guess of order 20-30) he keeps running on the highest stable fan speed for a few minutes and then shuts down, which seems to be indefinite.
The first time happened while running Windows whereas the other two times happened within Linux, in neither case high fan speed was required (typing or surfing where all activities). In Linux, i have XSensors installed which allows accessing some fan speed data. It turns out that the full speed bursts are depicted by 65535 RPM which then goes down to 0 RPM. The permanent highspeed state was once at 9500 RPM and the other time at 7800 RPM. It seems that 7800 RPM runs longer than 9500 RPM before it drops to 0 RPM and stays there.
There is nothing specifically which I could identify as an origin of this behavior, but since this is my working machine I am seriously worried. Also the sound it makes in the initial "burst"-phase really is annoying.
I really have no clue what to do so any help is welcome.
Thanks a lot in advance,
03-06-2018 10:57 AM
Which version yoga?(1, 2, 3??)
What are the temperatures?
03-06-2018 11:02 AM - edited 03-06-2018 11:22 AM
It is a Yoga-1st and the core temperatures are around 40-50 C (at full fan power even below).
Just had it again a minute ago... And it does sound a bit like a resonance appearing in a damaged axle bearing, well the cases i know are typically kids toys but it has similarity.
Otherwise the last time had much fewer "bursts" about 5 then it continued with 7900 RPM fixed (although CPU is at 45C)
I really hope someone has an idea...
03-30-2018 03:16 PM
I have the exact same problem. It's quite annoying because it makes the battery discharge much faster.
What is your distro?
And can you output the result of uname -a here?
Here is mine:
Linux guimtr-yoda 4.14.0-041400-generic #201711122031 SMP Sun Nov 12 20:32:29 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Finally, when did you start having this problem? Was it after updating the BIOS? Or Updating the kernel?
03-31-2018 04:32 AM
I almost forgot about this section since i haven't had a incident for more that a week. Yes i remember the battery drain too fortunately i was able to charge quickly.
I do not think that the problem is fixed but somehow it seems very unpredictable. But i would really appreciate figuring out the fans problem before it suddenly stops. My distro is:
>Linux michael-ThinkPad-X1-Yoga-1st 4.13.0-37-generic #42~16.04.1-Ubuntu SMP Wed Mar 7 16:03:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
I really do not know if the first incident was related to a kernel update it was about two or three month ago... Sorry
04-19-2018 10:45 AM
Same here but it happens extremely erratically. Exactly once since the last time I posted.
However as I mentioned in my first post, it happened in Windows too. So I do not see how Linux could be responsible.
The rare and erratic nature of this problem makes it hard to trace back the origin but is also the reason why I tend to forget about it in everyday work with the notebook. And apart from this Fan thing, the machine works like charm (i work predominantly with Ubuntu)
04-26-2018 06:20 AM
To me, it only happens in Linux, and Windows always seems fine. And it happens every time the laptop suspends.
This is really intriguing, and quite annoying, my battery life has been very short since this problem appeared.
06-27-2018 02:33 PM
Just as a quick update. The problem has not yet been solved, but it didn't occur to me for about 2 months up until today. This evening it is happening permanently but since I am on a deadline I have to continue using it.
I experience several minutes without any fan before it jumpstarts and immediately goes back into its odd rhythm. The only reason I feel remotely save using my machine is since I keep a close watch at the temperature and control the CPU power via "CPU Power Manager"
I am sorry for not bringing good news...