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List:       linux-thinkpad
Subject:    [ltp] Re: suspend issues: faulty lid switch?
From:       Stefan Monnier <monnier () iro ! umontreal ! ca>
Date:       2016-09-08 1:03:40
Message-ID: jwvr38vcij5.fsf-monnier+gmane.linux.hardware.thinkpad () gnu ! org
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> In the past, I had occasional issues where my laptop would fail to wake
> from suspend, andn eeded to be "hard" reset with the reset button (hte
> pinhole on the bototm of hte laptop). Since there's an internal battery, I
> also had to take apart the laptop and disconnect the battery for the reset
> to work.

That sounds like a hardware (or at most firmware) problem rather than
any kind of software issue.  On all my laptops, keeping the power button
pressed for 4-6s is enough to force a hard power-down.  And this seems
to be handled at a low-enough level that it's pretty much always worked,
even when the kernel is completely borked.


        Stefan

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