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Debian T14 Gen2 Intel - Overheat after standby

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audimarie
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Debian T14 Gen2 Intel - Overheat after standby

#1 Post by audimarie »

I have a Lenovo T14 Gen2 running Debian Bullseye with kernel 5.10.0-11-amd64. I can use the device all day, run CPU intensive workloads and everything works just fine. Unfortunately whenever I put my laptop into standby, it fails to start afterwards. The laptops turns on but performs a shutdown immediately afterwards.

According to syslog this seems to be a temeperature issue:

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Mar  5 23:07:36 t14 kernel: [  346.320244] thermal thermal_zone4: critical temperature reached (128 C), shutting down
Mar  5 23:07:36 t14 kernel: [  346.320891] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PC00.RP09.PEGP.DDNT], AE_NOT_FOUND (20200925/psargs-330)
Mar  5 23:07:36 t14 kernel: [  346.320897] ACPI Error: Aborting method \_SB.PC00.LPCB.EC.SEN4._TMP due to previous error (AE_NOT_FOUND) (20200925/psparse-529)
Mar  5 23:07:36 t14 kernel: [  346.320904] thermal thermal_zone5: failed to read out thermal zone (-5)
I can circumvent the issue by disabling thermal_zone4 using the following command:

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echo "disabled" > /sys/class/thermal/thermal_zone4/mode
Firmware is on 1.47 and Sleep State is set to Linux S3.

The issue exists for me since I got the device last year. Did anybody experience the same problem? Are there any solutions available?

fch
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Re: Debian T14 Gen2 Intel - Overheat after standby

#2 Post by fch »

What DE are you using? I ask because I have the same device, but using gnome the cpu is always working very high and the battery life terrible, max 4hours..

audimarie
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Re: Debian T14 Gen2 Intel - Overheat after standby

#3 Post by audimarie »

I'm using i3. I didn't see high CPU usage using that desktop yet. I had problems with video playback in firefox esr which caused high load. I could solve it by using the latest non-esr version which supports hardware acceleration. Maybe GNOME fails to use hardware acceleration?

fch
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Re: Debian T14 Gen2 Intel - Overheat after standby

#4 Post by fch »

Good question, I have always had some problems in that sense with debian gnome, despite being the default DE....

Soluk
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Re: Debian T14 Gen2 Intel - Overheat after standby

#5 Post by Soluk »

I have the same exact problem and a similar device (P15s Gen1). I've had it around 6 months ago running Debian with no issues. It's only now that this problem's come up.
An example:
I've tested it now, checked sensors and core temperatures all under 40c. Suspend then turn on and it says it's reached a critical temperature of 128c(!) on core 3. Changing it to hibernate doesn't affect it.
This effectively means that I'm forced to shutdown on closing the lid.

fch
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Re: Debian T14 Gen2 Intel - Overheat after standby

#6 Post by fch »

Soluk wrote: 2022-04-02 13:49 I have the same exact problem and a similar device (P15s Gen1). I've had it around 6 months ago running Debian with no issues. It's only now that this problem's come up.
An example:
I've tested it now, checked sensors and core temperatures all under 40c. Suspend then turn on and it says it's reached a critical temperature of 128c(!) on core 3. Changing it to hibernate doesn't affect it.
This effectively means that I'm forced to shutdown on closing the lid.
Same problem here, If I shutdown the battery remains at the same level as at the moment of shutdown, if i close the lid the battery will be 0 after only a few hours. I had the same problems with other notebooks, I tested moving to Debian Sid, and other distros and did not have this problem at all and battery life was much better, so apparently there's something wrong with Debian stable power management.

audimarie
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Joined: 2022-03-05 21:28

Re: Debian T14 Gen2 Intel - Overheat after standby

#7 Post by audimarie »

The problem does still persist for me. I started to wonder if any of the sensors returns invalid values. After running sensors I got the following results:

Code: Select all

thinkpad-isa-0000
Adapter: ISA adapter
fan1:        3364 RPM
temp1:        +55.0°C  
temp2:            N/A  
temp3:        +35.0°C  
temp4:         +0.0°C  
temp5:        +39.0°C  
temp6:        +55.0°C  
temp7:        +55.0°C  
temp8:            N/A
0.0°C for temp4 seems strange to me. Could anybody check this sensor with their T14 Gen2 Intel and verify if this is normal?

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Re: Debian T14 Gen2 Intel - Overheat after standby

#8 Post by Head_on_a_Stick »

I have a P14s Gen2a (AMD) and I need to set the "sleep mode" in the firmware ("BIOS") options to "Linux" for it to resume properly from suspend.
deadbang

audimarie
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Re: Debian T14 Gen2 Intel - Overheat after standby

#9 Post by audimarie »

The sleep option is set to Linux. I'm starting to wonder if this is a hardware fault and would like to ask if somebody could check whether the sensor value for temp4 is correct.

fch
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Re: Debian T14 Gen2 Intel - Overheat after standby

#10 Post by fch »

Is there some easy implementation of coreboot for that machine?

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