0
My Dell Latitude E5510 running Windows 7, seemingly random disables the charger/adaptor. After unplugging the charger from the socket, waiting a few seconds and plugging it back in, it works fine (sometimes only for a few seconds, sometimes until fully charged).
This behaviour is not dependent on the adaptor (I tried a different Dell-adaptor) and is not displayed when the laptop is in sleep-mode or powered-off (it charges OK). I.e. the operating system/power management/... is actively disabling the charger (control-led on charger goes out).
Googeling on for this issue gives little help. A single post describes similar symptoms, with the diagnosis being that the charger was incorrectly seen by power management as a NIC, and disabled. No solution posted however.
Changing the power management settings however does not ameliorate the situation, and I do not know how to request a log of power management-related events on Windows.
Any suggestions on diagnosis/possible fixes are welcome.
I followed the steps yesterday, and after some worrying start-up failures, Windows booted. Until now the disabling-behaviour has not manifested itself, thanks. Care to expand on what the problem was/these steps actually did? – mhermans – 2011-07-13T17:09:06.567
In part Windows controls the battery charging when booted, not sure what gets corrupted or how, but the procedure re-installs the components and drivers for those ACPI entries. Seems to be a common problem in Windows 7 and notebook PCs. – Moab – 2011-07-13T20:16:56.870
Unfortunately, the behaviour started again a few days later. I'm open for other suggestions... – mhermans – 2011-08-19T08:23:30.350