12-13-2017 03:19 AM
Has anyone experience fan running at full speed after updating BIOS to newest version 1.30? According to changelog a fan issues should be fixed but from my experience they got worse - much worse. Previously full-speed-fan issue was happening once a month, now after each suspend it spins at full speed. Also suspending/resuming doesn't help like it used to.
This is a bit clowny. Using loudy laptop is not very convinient.
I'm using Linux btw, if that makes any difference. I've seen reports of similar problem on X270 too (on appropriate sub-forum).
12-13-2017 03:24 AM
It seems that ACPI temperature rading stuck at 48 degrees:
Reading from other board sensors reports temperature ~30 degrees:
Core 0: +30.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +29.0°C (high = +100.0°C, crit = +100.0°C)
12-15-2017 02:17 AM
In order to investigate by development team, can you provide the below information ?
- Take a photo of BIOS Setup entry page
- Used storage device Information ( Vendor, SATA SSD or NVMe SSD, size )
- Linux version and kernel version
- output of #dmesg
- More steps to reproduce the symptom.
12-15-2017 11:29 AM - edited 12-15-2017 11:31 AM
Thanks for getting interested in topic.
For now I can tell you that on bios/ec 1.30/1.13 problem does occurr. Once I downgraded EC to 1.09 it's fine.
There's more discussion about this issue on the kernel/redhat bug lists:
I know that there is a workaround patch for Linux, but w/o doubts it's also an issue on the firmware side. It seems though that it happens in Windows too - just not so often.
Regarding rest of the requested information - I'll make a pic of BIOS section later on, here's disk info:
Device Model: SanDisk SD7TN6S256G1001
Firmware Version: X3551201
Rotation Rate: Solid State Device
Form Factor: M.2
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Linux version - the problem occurred on 4.13 and 4.14, I'm using Arch so this is very rolling upgrade distro.
I'm skipping dmesg for now since I'm using older EC. I'll restore newest one and will provide you rest of the info, if needed.
Nevetheless if you could just escalate/emphasise the proble on your side - that would be awesome.
Edit: repro steps - just suspend / resume laptop on recent kernel.
12-20-2017 12:30 AM - edited 12-20-2017 12:31 AM
Hi Rydeen. I have this problem to. In my t460s I'm running Win10 Pro 64 v 1703, Intel SSDSCKKF256H6L. The fan was good and quiet with bios version 1.26. Upgraded to 1.28 the fan was a little bit more prone to be heard, and when upgraded to 1.30 the fan was always running at high speed. Annoying and very noisy.
I couldn't roll back to version 1.26, now I use 1.27 instead. It's still as quiet as 1.26 i think, since i couldn't compare to 1.26 directly.
03-14-2018 10:39 AM
After 3 months, this extremely annoying problem is still not fixed! Lenovo staff, what's the problem?
03-14-2018 11:14 PM
UEFI: 1.33 / ECP: 1.14