Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message

W500/Win7: How to disable mic when lid closed

W500/510/520 and W700/710 series specific matters only
Post Reply
Message
Author
Aviatrexx
Posts: 3
Joined: Sun Jul 08, 2018 8:21 pm
Location: Apex, NC

W500/Win7: How to disable mic when lid closed

#1 Post by Aviatrexx » Sun Jul 08, 2018 9:10 pm

Fortunately, by an only mildly embarrassing accident, I discovered that the mic was still enabled on my closed (but running) W500. The transmitted audio was muted but still audible.

I use three closed-lid W500 ThinkPads with a variety of OSes on them, and use a KVM to switch the audio output and video to a single large monitor and speakers. For meetings that require the mic, I plug in a headset. Recently I plugged the headset into the wrong laptop, yet the other folks still heard me faintly. Apparently, even though the video is muted when the lid is closed, the mic and speakers are not.

This has a number of security ramifications, so I tried to find where I could disable the mic when the lid is closed. Win7 allows the processor to "do nothing" (not sleep, hibernate, or shutdown) when the lid is closed but there's nothing that will control the mic or speakers. Even the Lenovo Power Controls app has nothing to address this.

Is it possible to disable the mic when the computer is running with the lid closed? (Besides sticking a dummy mic plug in the headset port.)

Thanks,

-Chip-

Thinkpad4by3
ThinkPadder
ThinkPadder
Posts: 1673
Joined: Sun Aug 09, 2015 9:25 am
Location: N. Bellmore, ny

Re: W500/Win7: How to disable mic when lid closed

#2 Post by Thinkpad4by3 » Sun Jul 08, 2018 9:18 pm

Not sure software wise but you could prpbably splice a reed switch in and PNP transistor to the mic lines and highjacking the magnet for the lid sensor to mute the mic.
"Its not what screen ratio you have, it is what you do with it." -me

Now stop complaining and get back to work with your "wrongly configured" box of pixels.

-Thinkpad4by3, or 3:2, or 16:10, or 16:9, or 21:9.....or whatever.

RealBlackStuff
Admin
Admin
Posts: 19315
Joined: Mon Sep 18, 2006 5:17 am
Location: Mt. Cobb, PA
Contact:

Re: W500/Win7: How to disable mic when lid closed

#3 Post by RealBlackStuff » Mon Jul 09, 2018 7:06 am

Maybe only switch it ON when you need it?
And when finished, switch it OFF?

On either of your W500, right-click on the Speaker icon in the taskbar notification area, select Recording devices.
Right-click on your microphone and hit Properties, in the Microphone properties window go to Levels tab.
Here you can mute/re-enable the microphone.
Lovely day for a Guinness! (The Real Black Stuff)

Check out The Boardroom for Parts, Mods and Other Services.

TPFanatic
ThinkPadder
ThinkPadder
Posts: 1027
Joined: Thu Jul 30, 2015 11:29 pm
Location: Boston, Massachusetts

Re: W500/Win7: How to disable mic when lid closed

#4 Post by TPFanatic » Mon Jul 09, 2018 5:34 pm

I tried using nirsoft programs to disable my T500's microphone and achieve functionality similar to the hardware Mic Mute button supported by CS09 and newer Thinkpads. I was unsuccessful to derive any such functionality using their programs, I think the T500's sound driver does not support it.

I made the Thinkvantage button open up the Sound > Recording Devices window so I can use the mouse to disable / enable the Microphone.
lenovo T61 T7500, SXGA+, 8GB
lenovo T410s i5 520m, WXGA+, 4GB
lenovo T430 i5 3320m, FHD, 8GB
lenovo T500 P9700, WUXGA, 8GB
lenovo T520 i7 2760QM, FHD, 8GB



Enable 2 finger scroll on any Synaptics touchpads with registry: http://forum.thinkpads.com/viewtopic.php?f=2&t=122612

Aviatrexx
Posts: 3
Joined: Sun Jul 08, 2018 8:21 pm
Location: Apex, NC

Re: W500/Win7: How to disable mic when lid closed

#5 Post by Aviatrexx » Mon Jul 09, 2018 8:52 pm

OK, the consensus seems to be that there is no mechanism in Win7 that ties the audio to lid closure. Windoze is far from my favorite OS so I had hoped it was just unfamiliarity, and someone would provide desultory instructions.

I found a sub-mini jack in my electronic components stock. I'll have to unplug it to use the headset but that's a pretty good failsafe anyway. It's not elegant but it works.

Thanks all,

-Chip-

kfzhu1229
ThinkPadder
ThinkPadder
Posts: 1146
Joined: Tue Sep 22, 2015 10:59 pm
Location: Toronto, Canada

Re: W500/Win7: How to disable mic when lid closed

#6 Post by kfzhu1229 » Tue Jul 10, 2018 7:04 am

can you set the recording device to audio in instead of microphone, if thats an option? it worked on my T43.
_________________________________
T23 PIII 1.13ghz 1gb W7
2xT43 14.1" 2.26 SXGA+ 2gb 1*fp W10
T530i 15.6" i7 16gb fp W10
Flexview UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10

TPFanatic
ThinkPadder
ThinkPadder
Posts: 1027
Joined: Thu Jul 30, 2015 11:29 pm
Location: Boston, Massachusetts

Re: W500/Win7: How to disable mic when lid closed

#7 Post by TPFanatic » Tue Jul 10, 2018 11:29 am

I don't think T500 has that option. Audio controls are not extensive in the T500.
lenovo T61 T7500, SXGA+, 8GB
lenovo T410s i5 520m, WXGA+, 4GB
lenovo T430 i5 3320m, FHD, 8GB
lenovo T500 P9700, WUXGA, 8GB
lenovo T520 i7 2760QM, FHD, 8GB



Enable 2 finger scroll on any Synaptics touchpads with registry: http://forum.thinkpads.com/viewtopic.php?f=2&t=122612

Aviatrexx
Posts: 3
Joined: Sun Jul 08, 2018 8:21 pm
Location: Apex, NC

Re: W500/Win7: How to disable mic when lid closed

#8 Post by Aviatrexx » Tue Jul 10, 2018 4:33 pm

No, but it's a helluva portable CAD machine. :D
-Chip-

Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “ThinkPad W500/510/520 and W7x0 Series”

Who is online

Users browsing this forum: No registered users and 3 guests