Re: platform/x86: thinkpad_acpi: unhandled HKEY 0x60b0 and 0x60b1

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On Tue, Jan 9, 2018 at 10:13 PM, Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
> On Tue, Jan 9, 2018 at 3:19 PM, David Herrmann <dh.herrmann@xxxxxxxxx> wrote:
>> Hi
>>
>> The thinkpad_acpi driver constantly reports about unhandled events on
>> my ThinkPad X1 5gen. The logs look like this:
>>
>> kernel: thinkpad_acpi: unknown possible thermal alarm or keyboard event received
>> kernel: thinkpad_acpi: unhandled HKEY event 0x60b1
>> kernel: thinkpad_acpi: please report the conditions when this event
>> happened to ibm-acpi-devel@...
>>
>> kernel: thinkpad_acpi: unknown possible thermal alarm or keyboard event received
>> kernel: thinkpad_acpi: unhandled HKEY event 0x60b0
>> kernel: thinkpad_acpi: please report the conditions when this event
>> happened to ibm-acpi-devel@...
>>
>> I have no clue what triggers them. However, the 0x60b1 event seems to
>> notify about some kind of action, and 0x60b0 seems to notify about its
>> end (like FAN-START, and FAN-STOP). The 0x60b0 follows 0x60b1 usually
>> in a timespan between 1s-10s.
>>
>> The event occurs even when the laptop is not moved/touched, but only
>> performs random computations. The first time this occurs is usually
>> during user-space startup, which might just be the time the module is
>> loaded. So far, I did not see any other event occurring before/after
>> it, which might give any hints.
>>
>> What is the recommended way to deal with that? I am having a hard-time
>> figuring out what triggers it, but at the same time it spams the
>> system-logs to a degree that after 1h of uptime, the vast majority of
>> the system log is cluttered with those messages.
>>
>> I can provide a patch to ignore these events in the driver? Or does
>> anyone have access to Lenovo developers to ask for help?
>>
>
> I just googled this one:
> https://sourceforge.net/p/ibm-acpi/mailman/message/30670245/
>
> I dunno if we have any predefined events for screen_rotate_start /
> stop -alike stuff.

Another interesting link
https://www.snip2code.com/Snippet/3291964/0001-Add-Thinkpad-palm-detection-acpi-co/

Please, test this to be sure what exactly is the source of events.

-- 
With Best Regards,
Andy Shevchenko



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