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Hi there,
after 4 months I've been using my Lenovo X250 there appeared a problem with the power supply.
The charger is not detected by the laptop (I checked by running
dmesg | tail before and after plugging in the charger and nothing changes in between.
The problem is not OS dependent, since I also tried with Windows 8.1 (in dual boot) and there the diagnostic utility says something like ``the charger you are using is not adapted to this laptop''. From the BIOS I run the check up for the battery and power settings and no errors are found.
Reading here and there on the web, I learnt that this is something that may happen with Lenovo laptop and chargers, because of some utility checking the compatibility of the hardware (hence the message by Windows). I read that for Windows there's a way of bypassing the ACPI compliant which checks this compatibility to avoid this kind of problem.
The ``funny'' thing is that the occurrence of such issue is totally random (at least it seems to me): sometimes it appears, sometimes the charger works perfectly.
Has any of you experienced the same thing?
Is there a work around like the one for Windows that works for Arch?
(I would like to solve this on the software side, if possible, before going through the meanders of the producer's assistance)
EDIT: Quite possible that the charger itself is not a problem, since the same happens with a Lenovo T440s' charger, with the same specifics as mine (but perhaps I'm missing some details...)
Last edited by cherbert (2015-11-14 13:38:45)
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I marked the post as solved, but there actually was no solution on
the software side. It was an hardware problem that has been solved by
the IBM assistance.
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