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High pitching sound when connecting through DVI/VGA


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Firstly I had 19" LCD connected via DVI and it was okay, but when Im connecting any display via HDMI or VGA Im hearing high-pitched continuous sound from PC when dragging/opening/closing windows, or opening folders in dock with Grid-view.

After dragging is finished, or folder opens, etc., it instantly disappears. Only setting GraphicsEnabler=0 I got rid that sound, but of course - its not a solution.

After ispecting it attentively, I went to conclision that its PSU sound. I replaced PSU to FSP BlueStorm 400W, but got the same "sound", even louder.

I was thinking that its PSU issue, but when installed Windows 7 and the issue was gone! Dragging windows, playing games, overload OS - no any sound.

So, guys, I will be very glad to see your advices dealing. I attached that sound example to the post.

 

My config:

Chameleon 2.0 RC4 by AsereBLN +DSDT + Legacy889aH.kext + fakesmc.kext

Corei7- 860/Gigabyte GA-P55M-UD4 F11/4Gb 10600 Kingston/512M Palit Ge-Force 240GT/Zalman 600W "ZM600-ST"/Optiarc DVD-RW - no overheat, overclock or any additional hardware connected.

VOC0064.mp3

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