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ToniCipriani
Fanfold Paper
Posts: 14
Registered: ‎03-14-2011
Location: CA
Views: 2,317
Message 1 of 15

Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

https://lists.debian.org/debian-devel/2017/06/msg00308.html

 

Are we expecting a microcode update from Lenovo for this?

 

I have a Yoga 260 with an i5-6200U here (2C4T).

shizonic
Paper Tape
Posts: 9
Registered: ‎05-02-2017
Location: CH
Views: 2,269
Message 2 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

Same question for X1 Carbon 2017?
MissingNoodles
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Registered: ‎06-27-2017
Location: US
Views: 1,905
Message 3 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

Yoga 460 waiting on a bios update as well. For now, disabling HT in bios and taking a performance hit helps with stability. 

shizonic
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Registered: ‎05-02-2017
Location: CH
Views: 1,899
Message 4 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

Where did you find an option to disable ht in bios?
Lenovo Staff
Lenovo Staff
Posts: 5,177
Registered: ‎10-29-2009
Location: NC
Views: 1,888
Message 5 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

I believe the BIOS updates for this issue are being released.  ThinkPad Yoga 260 seems fixed already in version 1.55.

Can you confirm if this version (or later) solves the problem for you?

 

<1.55>
 UEFI: 1.55 / ECP: 1.27
- (New) Updated the CPU microcode.
- (Fix) Fixed a POST hang issue when Lenovo T2424z monitor is attached to the system
        and is selected as a boot display.
- (Fix) Fixed an issue where Samsung 18nm memory might occur BSOD.
- (Fix) Fixed the issue where the keyboard, trackpoint and trackpad does not work

 

thinkpadboi
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Posts: 5
Registered: ‎05-21-2017
Location: US
Views: 1,749
Message 6 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

+1 for this on the X270.  I have a Kaby Lake i7 with hyperthreading and I don't see any way to turn it off in the BIOS. 

Lenovo Staff
Lenovo Staff
Posts: 5,177
Registered: ‎10-29-2009
Location: NC
Views: 1,743
Message 7 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?


@thinkpadboi wrote:

+1 for this on the X270.  I have a Kaby Lake i7 with hyperthreading and I don't see any way to turn it off in the BIOS. 


There is no way to turn it off in the BIOS.

ToniCipriani
Fanfold Paper
Posts: 14
Registered: ‎03-14-2011
Location: CA
Views: 1,738
Message 8 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

Well I'm actually asking Lenovo that question, Intel is leaving it up to manufacturers to push the updates. I did try to stress the machine and didn't notice instability in particular.

jgch
Fanfold Paper
Posts: 14
Registered: ‎03-21-2016
Location: CH
Views: 1,623
Message 9 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

You can do it on your own:

 

Download the Microcode Updater from VMWare: https://labs.vmware.com/flings/vmware-cpu-microcode-update-driver and the latest microcode package from Intel. That should do the job.

MissingNoodles
Paper Tape
Posts: 3
Registered: ‎06-27-2017
Location: US
Views: 1,430
Message 10 of 15

Re: Intel Skylake and Kaby Lake Hyper-Threading Bug: Microcode Update from Lenovo?

@someotherguy any update on the yoga 460 getting the microcode fix? Thanks

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