On Sat, Feb 21, 2009 at 11:01 AM, Garrett Cooper<yanefbsd_at_gmail.com> wrote: > I don't know how else to describe it, but when I turn up my > speakers enough (50%+) and don't have any sound playing, I hear a > whitenoise hiss coming out of them. When I change webpages (nvidia > driver is GIANT locked) or do something else kernel intensive it stops > for a brief second, but apart from that it's an annoying trill sound > almost like a mosquito humming around me waiting to be swatted. I suspect this is due to the CPU executing the HLT instruction. Try running the following command: sysctl machdep.cpu_idle_hlt=0 -- Ståle LyngaasReceived on Thu Jul 23 2009 - 21:45:05 UTC
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