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13 Posts

05-01-2018

United States of America

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

2019-03-04, 14:08 PM

erpalma's script does help but like you said it's a joke that the i7-8ths are no better than my last i7-4810mq.

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21 Posts

12-11-2014

Canada

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

2019-03-13, 15:44 PM

I'm seeing the issue on a T470s, BIOS 1.31, i7-7600U.

 

 

$ sudo rdmsr -f 29:24 -d 0x1a2
25

25° is still quite a low temperature treshold, I guess.

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1 Posts

04-17-2019

Australia

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

2019-04-17, 3:41 AM
I'm have the same issue on T480.

$ sudo rdmsr -f 29:24 -d 0x1a2
30

$ fwupdmgr update
No upgrades for 20L5CTO1WW System Firmware, current is 0.1.23: 0.1.16=older, 0.1.17=older, 0.1.18=older, 0.1.19=older, 0.1.21=older, 0.1.23=same
No upgrades for UEFI Device Firmware, current is 184.60.3561: 184.55.3510=older, 184.60.3561=same
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1 Posts

04-27-2019

Australia

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

2019-04-27, 23:06 PM

Sadly, another Linux user and owner of the ThinkPad X1C6 affected by this issue. Super disappointed that no Firmware patch has been released as of yet.

 

Levono, I bought the ThinkPad as it is renowned for its Linux compatability. A fireware update to fix this bug would be incredibly appreciated

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1 Posts

05-17-2019

Germany

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

2019-05-17, 8:59 AM

Fortunately I stumbled over this before purchase. No deal. Bugs can happen, but Lenovo ignoring it completely is a no-go.

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35 Posts

04-08-2018

Germany

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

2019-05-17, 9:20 AM

Good choice. Looks like nowadays, if you want to run Linux, don't buy Lenovo. I learned this the hard way now, but that sticks.

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12 Posts

10-10-2018

Germany

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

2019-05-17, 12:58 PM

and what to buy then? apple is going really down and the others are not getting close to them .. this is my impresion.

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13 Posts

05-01-2018

United States of America

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

2019-05-17, 14:18 PM

if you want lenovo/apple quality then your only other options are HP and Dell i think...can get something like System76 but the battery life is no where close

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1 Posts

06-06-2019

Netherlands

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  • Message 79 of 484

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

2019-06-06, 22:22 PM

This reddit post suggests an alternative to fighting the firmware like "lenovo-throttling-fix"/throttled does:

 

My thermal cap was initially pretty bad:

 

root:~# rdmsr -f 29:24 -d 0x1a2
30

I checked my current and available thermal policies:

 

root:~# cat /sys/devices/platform/INT3400:00/uuids/current_uuid
INVALID
root:~# cat /sys/devices/platform/INT3400:00/uuids/available_uuids 3A95C389-E4B8-4629-A526-C52C88626BAE 63BE270F-1C11-48FD-A6F7-3AF253FF3E2D 9E04115A-AE87-4D1C-9500-0F3E340BFE75

The policy name for each uuid can be found in the source code. Why the sysfs interface doesn't just use policy names instead of uuids is a complete mystery to me, since they're doing a table lookup anyway. On my T480 the available policies are apparently ACTIVE, ADAPTIVE_PERFORMANCE, and PASSIVE_2. I have not been able to find any documentation on what these mean. (Edit: These correspond to Intel DPTF policies. It is unclear to me how this relates to intel's DPTF software (which currently supports neither ADAPTIVE_PERFORMANCE nor PASSIVE_2): if the thermal policy is handled in firmware then what purpose does the userspace software have, if the policy is implemented by userspace software than what does this firmware setting do exactly?)

 

I set the policy to ADAPTIVE_PERFORMANCE and confirmed it changed:

root:~# echo 63BE270F-1C11-48FD-A6F7-3AF253FF3E2D >/sys/devices/platform/INT3400:00/uuids/current_uuid
root:~# cat /sys/devices/platform/INT3400:00/uuids/current_uuid
63BE270F-1C11-48FD-A6F7-3AF253FF3E2D

I located the INT3400 thermal_zone, which in my case is apparently thermal_zone1:

root:~# grep INT3400 /sys/class/thermal/thermal_zone*/type
/sys/class/thermal/thermal_zone1/type:INT3400 Thermal

and enabled it:

root:~# cat /sys/class/thermal/thermal_zone1/mode 
disabled
root:~# echo enabled >/sys/class/thermal/thermal_zone1/mode 
root:~# cat /sys/class/thermal/thermal_zone1/mode 
enabled

The result:

root:~# rdmsr -f 29:24 -d 0x1a2
3 

 

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5 Posts

01-11-2019

Portugal

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

2019-07-17, 15:44 PM

Currently facing the same issue myself.

 

ThinkPad T480s 20L7

Ubuntu 18.04.2 LTS

Linux localhost 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

 

Waiting for a fix...

 

$ sudo fwupdmgr hwids

Computer Information
--------------------
BiosVendor: LENOVO
BiosVersion: N22ET54W (1.31 )
BiosMajorRelease: 01
BiosMinorRelease: 1f
Manufacturer: LENOVO
Family: ThinkPad T480s
ProductName: 20L7001LPG
ProductSku: LENOVO_MT_20L7_BU_Think_FM_ThinkPad T480s
EnclosureKind: a
BaseboardManufacturer: LENOVO
BaseboardProduct: 20L7001LPG  

 

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