Hello all, We have recently upgraded several of these laptops at a client. The machines are old but not too badly specified, so it was decided to upgrade to the max. The RAM to 2GB, the disks to 320GB and the O/S to Windows 7. The users were delighted and all was well...except for an audio problem.
It occurs when recording sound from the mic input. Skype can trigger the situation and is the application that uncovered the problem. It is a continuous, low-level, [approx.] 500Hz whine (groan?) It is not a feedback problem :-) The user couldn't hear the noise but the people on the other end of the conversation were complaining. The problem doesn't occur when simply playing audio, so it hadn't been noticed previously. First test was to check a laptop that had not been upgraded. That returned exactly the same fault. After that, we booted from an Ubuntu CD to rule out the O/S and drivers and the same problem occurred. So, it is hardware related and before we open one and start testing for bad caps, ground loops and crispy spiders, has anyone else seen this? I have searched endlessly and found one *similar* problem on the HP forum with no resolution. I am an electrical engineer and equipped for (and comfortable with) all manner of hardware down to smt but I am getting too old for this! TIA -- Peter van Houten ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
