Sometimes my UPS (Advice) starts beeping every 20 seconds or so (electricity is not turned off and the computer continues to work).
See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=820837 UPS model is Advice PRS850. Note that I am NOT subscribed to this mailing list! -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
