While my problem is not exactly the same, i feel that it's so closely related as to not warrant a separate bug. I have a thinkpad x1 extreme gen3. Whenever i suspend, upon waking up, it shuts down: thermal thermal_zone3: critical temperature reached (128 C), shutting down
almost always zone3, sometimes zone4. This is on my focal install, but i tried on a pristine focal live cd, as well as a groovy daily live cd (from sept 26th), with the exact same result. Groovy has thermald 2.3. I *know* my laptop is not in overheat at that point. I can do this from a cold laptop, on battery or on power at 100%, doing fine with temperatures way low (~40 degC), suspend and wake up 10 seconds later _and i still have that behavior. Whatever that sensor is reading did not go from 40 to 128 in 10 seconds of suspend. I suspect a single bad reading when it wakes up trips everything up. I've tried thermal.nocrt, or thermal.crt=150, as kernel command lines (and checked when booted that they were applied). That seems to only impact the acpitz-acpi-0 zone, nothing else, and it still powers off when waking up. removing module int3403_thermal removes thermal_zone[1-8] in /sys/class/thermal (interestingly, sensors still returns the same set, so either those zones aren't to do with the cpu or anything else sensors returns, or sensors goes through something else to get its values?) and suspend now works fine. happy to do some more digging, i'd obviously prefer to un-blacklist this module but now at least i can suspend -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1873083 Title: Lenovo Yoga C940 frequently does thermal shutdown Status in linux package in Ubuntu: Incomplete Status in thermald package in Ubuntu: Confirmed Status in Gentoo Linux: New Bug description: On a bit higher load and especially if Laptop is charging, very often Kernel does an emergency thermal shutdown. thermal thermal_zone3: critical temperature reached (80 C), shutting down It says 80 C, but sensors command shows that temperatures hovering close to 100C before the shutdown happens. dmesg is often also full of these (for each core): mce: CPU2: Core temperature above threshold, cpu clock throttled (total events = 246766) When I boot to Windows, it seems that CPU is throttled more aggressively on load and thermal shutdown doesn't happen with a similar load, but CPU frequencies drop to 1600 range, while in Ubuntu they are 2800 range. I would rather have more throttling that computer shutting down randomly without the ability to save work. Is there a workaround? ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-21-generic 5.4.0-21.25 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu24 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: anton 1874 F.... pulseaudio /dev/snd/pcmC0D0p: anton 1874 F...m pulseaudio /dev/snd/pcmC0D6c: anton 1874 F...m pulseaudio CurrentDesktop: ubuntu:GNOME Date: Wed Apr 15 23:54:21 2020 InstallationDate: Installed on 2019-11-29 (137 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: LENOVO 81Q9 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=24af2874-e109-44f9-a5b9-8a9ce34b3f0f ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-21-generic N/A linux-backports-modules-5.4.0-21-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-04-04 (11 days ago) dmi.bios.date: 01/09/2020 dmi.bios.vendor: LENOVO dmi.bios.version: AUCN54WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga C940-14IIL dmi.modalias: dmi:bvnLENOVO:bvrAUCN54WW:bd01/09/2020:svnLENOVO:pn81Q9:pvrLenovoYogaC940-14IIL:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct31:cvrLenovoYogaC940-14IIL: dmi.product.family: Yoga C940-14IIL dmi.product.name: 81Q9 dmi.product.sku: LENOVO_MT_81Q9_BU_idea_FM_Yoga C940-14IIL dmi.product.version: Lenovo Yoga C940-14IIL dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873083/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
