On 04/11/2010, at 19:41, Doug Barton wrote: > hdac0: <Intel 82801JD High Definition Audio Controller> mem > 0xf7adc000-0xf7adffff irq 16 at device 27.0 on pci0 > hdac0: HDA Driver Revision: 20100226_0142 > hdac0: HDA Codec #0: Analog Devices AD1984A > pcm0: <HDA Analog Devices AD1984A PCM #0 Analog> at cad 0 nid 1 on hdac0 > pcm1: <HDA Analog Devices AD1984A PCM #1 Analog> at cad 0 nid 1 on hdac0 > > There's 2 problems. When I plug the headphones in there are sounds, sometimes > a low-level sound like a tea kettle whistling, and sometimes a louder > screeching sound. The other problem is that the front headphone jack doesn't > work. The rear one works, but this is less than convenient. :) Windows and > ubuntu linux do not have either problem with the same hardware.
Try sysctl hw.snd.default_unit=1 You have 2 separate outputs, almost certainly one is the rear and one is the front. The noise you hear might be fixable using mixer to mute any other sources but PCM. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
