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Lenovo Employee MarkRHPearson
Lenovo Employee
Posts: 41
Registered: ‎07-22-2019
Location: CA
Views: 4,923
Message 101 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Hi,

 

I promise this thread is not forgotten. I have a document that I'm reviewing with the firmware team explaining the root cause of the issue and how Lenovo is fixing it - I just have to get approval before releasing it publicly. Hopefully in the next couple of days.

 

We're still working on the details on which platforms the fix is going to be rolled out on and timelines - I'll keep pushing to get those details for you. I do have a list of platforms that I've gathered from this thread

 

Sorry it's taking so long, we've been testing the fix for the last couple of weeks to make sure it is working as expected.

Thanks

Mark

ccmc
Paper Tape
Posts: 2
Registered: ‎02-14-2019
Location: IT
Views: 4,895
Message 102 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Dear Mark,
thanks a lot for the good news, and your work.
Lenovo Employee MarkRHPearson
Lenovo Employee
Posts: 41
Registered: ‎07-22-2019
Location: CA
Views: 4,741
Message 103 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Hi,

 

Attached should be a PDF which hopefully helps explain why this issue is happening on Linux systems and the steps Lenovo are taking to address it. 

I'll very happily field any questions.

 

I know the main question is going to be "when will this be available for system...." - and I don't have all the answers there.

We will have the updates really soon for the X1 Carbon Gen 7 (there's actually a firmware image on LVFS right now which you can install - but my understanding is a BIOS image update is needed to go with it and that's not up yet - I'll update when both are available).

I can't make any promises on other systems yet but I'll update this thread as I find out more.

 

Mark

mudrii
Paper Tape
Posts: 6
Registered: ‎09-15-2019
Location: SG
Views: 4,703
Message 104 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Thx Mark for the update

 

Any plans to relase for P53 Thinkpad's workspations?

K900_
What's DOS?
Posts: 3
Registered: ‎12-26-2018
Location: RU
Views: 4,580
Message 105 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Thanks a lot, this is very helpful! Also, just adding the X1 Extreme to the list of affected devices.

Lenovo Employee MarkRHPearson
Lenovo Employee
Posts: 41
Registered: ‎07-22-2019
Location: CA
Views: 4,540
Message 106 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

I got confirmation the X1 Carbon Gen 7 drivers are posted. The notes don't mention the thermal fix (I have no idea why) but without wanting to sound too Jedi - these are the firmware you are looking for:

 

EC firmware: https://fwupd.org/lvfs/device/com.lenovo.ThinkPadN2HHT.firmware

BIOS: https://fwupd.org/lvfs/device/com.lenovo.ThinkPadN2HETXXW.firmware

 

Note - the EC firmware must be installed first. Do feedback if you hit any problems or have questions 

 

As a note - the list of impacted systems that I've collected from this thread is: 

T480/T480s 

X1 Carbon 6th Gen 

X1 Yoga 3rd Gen 

P52/P52s/P53

T470, T490, L380

X1 extreme

Thinkpad 25 Anniversary edition

 

I don't have any details yet of which systems and when there will be solutions for these available. I'll continue to post to this thread when I find out more details. 

 

Mark

jnWibble
SCSI Port
Posts: 50
Registered: ‎03-27-2018
Location: GB
Views: 4,531
Message 107 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Thanks! I await, for my part, the fix for the sixth generation X1.

 

I note that the release notes for the BIOS do say this: 'Fixed an issue where system performance may slow on Linux.'

simondo99
What's DOS?
Posts: 1
Registered: ‎09-25-2019
Location: GB
Views: 4,449
Message 108 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Please include the Thinkpad P1, 1st gen in the list of affected devices.

estan
Paper Tape
Posts: 7
Registered: ‎08-25-2019
Location: SE
Views: 4,413
Message 109 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Thanks for the update. Another 6th gen X1 here, hope that counts for something Smiley Happy

Sub0
Paper Tape
Posts: 2
Registered: ‎09-25-2019
Location: FR
Views: 4,387
Message 110 of 215

Re: [X1C6/T480s] low cTDP and trip temperature in Linux

Nice to see that there is some move, and thanks a lot for the clear information (the few I can understand !)

 

As Hank_Shrader reported a few days ago, X390 is affected as well (all recent device it seems) and I can confirm the 15W fall after a few second of high load.

 

Hope the fix will concern every models !

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