I have the strangest problem with my Inspiron 8200 laptop. If I enable power management in the kernel configuration, I get a continous high pitched beep that sounds like the PC speaker, only not as loud. This happens whether I enable ACPI or APM, and even when I leave both disabled and only check the "Enable power management" option. This happens both in kernel 2.4.19's stock power management code, and with the acpi4linux patches. The hum becomes much quieter if I remove AC power from the unit, and doesn't happen at all in Windows or in Linux with power management disabled. It sounds like a software generated tone, because under heavy CPU load (during a compile for example) the hum stops intermittently. I've tried using setterm -blength 0 to turn of the PC speaker, but it doesn't make a difference. Does anybody have any idea what might be going on? Is there any place in the kernel power management code that emits a tone or is the kernel exposing some sort of hardware problem? Thanks in advance, Rayiner Hashem - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
