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Old Vostro AC Adapters
After a series of odd power hits, the UPS played
safe or got confused enough to shut off power on its output a couple of times. This in turn caused an old Vostro 1500 ac adapter to shut down. In this mode, when power returns, the adapter does not power up. Naturally the laptop then runs the battery down and shuts off, and when you come home everything is quiet. The adapter is not broken, though. If you remove power and power it back up, it works fine. Apparently this behavior is built in, not a breakdown. I guess the theory is that if the power is erratic enough, it protects itself by disconnecting until power is removed long enough to reset some bit. -- On the internet, nobody knows you're a jerk. |
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