Latitude E-Series Disable Webcam/Microphone BIOS Bug

[Robin24k]

After troubleshooting this issue on several systems for a ridiculous amount of time, I've been able to pinpoint the issue. Dell is now aware of the issue and has issued a internal notice for the entire E-series, and at this time, it is unknown whether or not a fix will be released.

Here's some information regarding this bug and what to do about it.

Basic Information

If you disable the webcam in the BIOS, the entire webcam/microphone board is disabled, which also takes down the microphone! I've personally confirmed this on a E6410 and E6320. It appears to be a hardware limitation that the webcam cannot be disabled independently of the microphone, as they are on the same board.

If the microphone is not working on your system, the first thing to check is whether or not the webcam is enabled in the BIOS.

On some systems (confirmed E6320, not sure about others) without a webcam, the webcam option is still shown in the BIOS, so make sure that is enabled to ensure microphone operation.

On some systems (confirmed E6410, not sure about others), resuming from standby may re-enable the webcam until the next reboot.

How to Avoid

Do not uncheck the "Enable Webcam" option in the BIOS, even if your system does not have a webcam.

Work-Arounds

If you do not want a webcam but ordered your system with one, there are two work-arounds:

1. Disable the webcam in Device Manager.
2. For a permanent fix, Dell is offering a replacement of the webcam board with a microphone-only board. To remove the webcam port, ensure that the matching mic-only bezel is dispatched.

BIOS Updates

It seems that Dell has started to release BIOS updates to fix this issue. Here is a list of BIOS versions that are not affected by this issue:

Latitude E5420: A03, released 10/18/2011
Latitude E5520: A03, released 10/18/2011
Latitude E6220: A03, released 10/16/2011
Latitude E6320: A07, released 10/16/2011
Latitude E6420: A07, released 10/16/2011
Latitude E6520: A07, released 10/16/2011

Precision M4600: A07, released 10/11/2011
Precision M6600: A06, released 10/11/2011

[Rykoshet]

On the e6520 this is solved via BIOS a07

[Robin24k]

Thanks for the info. Do you know what the fix is? Can the webcam be disabled independently of the microphone, or did they combine webcam/microphone into one option?

[trueg50]

Originally Posted by Robin24k

Thanks for the info. Do you know what the fix is? Can the webcam be disabled independently of the microphone, or did they combine webcam/microphone into one option?

A07 for the E6420 had this listed in the "fixed" list.

Fixes/Enhancements
------------------
1. Addressed some express cards fail to be detected issue.
2. Addressed Hard Drives encryption issue in ATA mode.
3. Addressed some keyboard with USB Hub not accessible during POST.
4. Fixed issue where disabling webcam stops microphone from working.
5 . Fixed issue where battery temperature sensor throttling CPU at high temperature when external power.
6. Fixed issue where Video memory size limited to 256MB in WinXp.
7. Fixed issue where Free Fall Sensor protection doesn't work after resuming from S3.
8. Fixed issue where TPM measurements were not correct when authenticating via PBA.
9. Updated Intel ME Firmware to 7.1.20.1119.
10. Updated to the 1.3.76 version of the Intel PXE OROM.

[anabarroso]

Hi
You all seem very experts and I found this site after tons of hours trying to solve my problem with trobleshooting sites, google it, forums, microsoft help ( that didnot get me anywhere)etc.
After all night on the dam thing I found you and what I am trying to find out is How do I activate (turn on) my built in webcam on my Dell Latitude D830 laptop, I have tried everything, in the device manager, start menu, visual microst programs, nothing and I need it fast because I need it for my Skype visual tonight.
I know this thing has a webcam I can see it on my left down side corner but how to turn it on, Wow.

Please, please, anybody help me before I go crazy.
Ana Barroso

[Robin24k]

There is no option for a webcam in the D830, what you're seeing is the Ambient Light Sensor, which is used for automatic brightness adjustment. Integrated webcam was only offered as an option starting with the E-series.