Noise on the headphone jack

Question

Hi, there.
I've head this iBook for about a year and a half now and, apart from a couple of minor issues, it's been sort of OK. Here are the problems I've had so far:
1. There is a small hump on the inner left edge of the display (there since I took it out of the box);
2. The smaller ENTER key doesn't fit well because of the wiring underneath it and sometimes doesn't work;
3. I get noise on the headphone jack that I just can't get rid of.
I'm pretty sure there's not much anyone can do about the first two (especially now that the warranty has expired), but there must be something I can do about this noise thing. I've already tried all kinds of simple things that one can do in a situation like this, but so far nothing's worked.
Essentially what I get is always the same sort of noise which reminds of the noise you get from cheap portable CD players or, if you're old enough, the noise from a tape player. Sometimes when I switch applications this noise goes away only to come back when I switch again.
I've also had a similar problem for a while that simply took care of itself, i.e. there was static (noise) on this same jack which would go away if I pressed my finger on the display open button. Funny, eh?
Now, if anyone has had this problem or you know how to fix it, I'd be grateful if you'd enlighten me.
Thanks.
12" iBook G4, 1 GHz, 256 RAM, 30 GB   Mac OS X (10.3.9)  

Answer 1

Hi risto
Welcome to Lenovo Community Forums!
Try Downloading and installing the drivers back
     Realtek Audio Driver for 64-bit Windows Windows 8.1
     Realtek Audio Driver for 64-bit Windows windows 8
See if problem persists
If Yes
Go in to Control Panel
   Hardware and Sound
          Sound
Click on the Playback Tab
       Highlight your speakers with Realtek High definition Audio and click properties down on the lower right corner
                   You will have a new window, click on the enhancements TAB and place a check on Disable all Enhancements, Hit "Apply' Then hit OK"
and check the Sound again if it is OK now
   This guide is on this Article titled "Test 5: Disable All Sound Effects In Windows 7"
the guide applies to Windows 8 and 8.1
If this guide still did not fix the issue try disabling or mute to Microphone see if that works
Hope this helps
Cheers!
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