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lsiudut
Blue Screen Again
Posts: 4
Registered: ‎12-13-2017
Location: IE
Views: 2,191
Message 1 of 8

ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

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).

lsiudut
Blue Screen Again
Posts: 4
Registered: ‎12-13-2017
Location: IE
Views: 2,175
Message 2 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

It seems that ACPI temperature rading stuck at 48 degrees:

 

temp1:        +48.0°C

 

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)

Lenovo Employee Rydeen
Lenovo Employee
Posts: 376
Registered: ‎03-03-2017
Location: JP
Views: 2,085
Message 3 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

Dear customer,

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.

lsiudut
Blue Screen Again
Posts: 4
Registered: ‎12-13-2017
Location: IE
Views: 2,058
Message 4 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

Hi Rydeen!

 

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:

https://bugzilla.redhat.com/show_bug.cgi?id=1480844

https://bugzilla.kernel.org/show_bug.cgi?id=191181

https://bugzilla.kernel.org/show_bug.cgi?id=196975

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.

 

Thanks again!

Edit: repro steps - just suspend / resume laptop on recent kernel.

javanicus
Blue Screen Again
Posts: 1
Registered: ‎08-15-2017
Location: ID
Views: 2,011
Message 5 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

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. 

dark_rider
Punch Card
Posts: 60
Registered: ‎10-01-2012
Location: DE
Views: 1,578
Message 6 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

After 3 months, this extremely annoying problem is still not fixed! Lenovo staff, what's the problem?

_______________________________________________________________________________
T460s 20F9CTO1WW (i7-6600U, 20 GB, 512 GB SSD NVMe, WQHD [LG], Win 10 Pro, Ultradock)
W530 N1K59GE (i7-3820QM, 8 GB, 240 GB SSD, 1 TB HDD, FHD, Win 10 Pro, Minidock Plus 3)
T61p NH0BQGE/UK (T9500, 4 GB, 200 GB FDE, WUXGA, UMTS, Vista Ultimate 32-Bit, Adv. Minidock)
GNCH
Core Memory
Posts: 24
Registered: ‎07-14-2016
Location: NL
Views: 1,570
Message 7 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

Bios 1.33 solved the fan problem for me.

dark_rider
Punch Card
Posts: 60
Registered: ‎10-01-2012
Location: DE
Views: 1,551
Message 8 of 8

Re: ThinkPad T460s, BIOS 1.30, "fan fix" actually worsen things

Version 1.33
 UEFI: 1.33 / ECP: 1.14

  • (New) Updated the Diagnostics module to version 03.12.002.
  • (Fix) Fixed TPM firmware update issue with TPM 1.2.
  • (Fix) Fixed a mismatch issue between the Intel(R) ME configuration and FPF fuse settings.
  • (Fix) Fixed an issue where fan might rotated with max speed.
_______________________________________________________________________________
T460s 20F9CTO1WW (i7-6600U, 20 GB, 512 GB SSD NVMe, WQHD [LG], Win 10 Pro, Ultradock)
W530 N1K59GE (i7-3820QM, 8 GB, 240 GB SSD, 1 TB HDD, FHD, Win 10 Pro, Minidock Plus 3)
T61p NH0BQGE/UK (T9500, 4 GB, 200 GB FDE, WUXGA, UMTS, Vista Ultimate 32-Bit, Adv. Minidock)

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