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Unable to boot as cave is overheating and switches off
Reported by
realgran...@gmail.com,
Sep 7 2017
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Issue descriptionUserAgent: Mozilla/5.0 (X11; CrOS x86_64 9765.53.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.80 Safari/537.36 Platform: 9765.53.0 (Official Build) beta-channel cave Steps to reproduce the problem: 1. Update to 61.0.3163.80 2. Reboot 3. What is the expected behavior? The laptop is able to boot without overheating What went wrong? Boots up, I log in, it starts reloading all pages and "Finishing android update" then overheats and switches off, then starts again... I was able to solve this by detaching power cord, detaching external monitor and opening the lid) Did this work before? Yes 61.0.3163.60 Chrome version: 61.0.3163.80 Channel: n/a OS Version: 9765.53.0 Flash Version: I have m7 ASUS C302 - it periodically overheats and shuts down when running. There is definitely thermal/CPU clock regulation problem. But after the latest update to 61.0.3163.80 it can't even boot without overheating with lid closed.
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Oct 8 2017
It is overheating and shutting down (for example when attaching external HDD with lots of photos and opening the files viewer so it starts generating previews). I'm trying to invent any solution to stop if from overheating. The problem is that DPTF kicks in and switches off the unit when the temperature goes over 90C. It may be that SNB is incorrectly tuned for P-State but it's hard to debug as it seems that snb debugging is not present in my kernel build; Maybe kernel tracing will help to understand if the CPU gets to the max P-State when the shutdown happens. Because if it is - then it is the thermal design problem with the device itself.
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Oct 8 2017
Relevant links: https://www.kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt http://events.linuxfoundation.org/sites/events/files/slides/LinuxConEurope_2015.pdf DPTF source code: https://github.com/01org/dptf The relevant part of code that causes shutdown: https://github.com/01org/dptf/blob/16b680875187ce7ce602d9055302cadfc802a347/ESIF/Products/ESIF_UF/Sources/esif_uf_action_system.c#L138 Log entry: 2017-10-08T19:04:12.220952+02:00 INFO DPTF[1919]: INFO:[<ACTION>ActionSystemSet@esif_uf_action_system.c#138]<1507482252220 ms>: SYSTEM_SHUTDOWN command received - temperature = 3682, trip point = 3682 Chromium control code: https://chromium.googlesource.com/chromiumos/platform/ec/+/master/common/dptf.c Default tipping point settings: https://groups.google.com/a/chromium.org/forum/#!topic/chromium-os-reviews/hMNJB29JRlE (relevant change seems to be unavailable) -#define DPTF_CPU_PASSIVE 57 +#define DPTF_CPU_PASSIVE 80 #define DPTF_CPU_CRITICAL 90 #define DPTF_CPU_ACTIVE_AC0 90 #define DPTF_CPU_ACTIVE_AC1 80
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Oct 9
Issue has not been modified or commented on in the last 365 days, please re-open or file a new bug if this is still an issue. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot |
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Comment 1 by dhadd...@chromium.org
, Sep 15 2017