Question about Dell Latitude C640 Notebook

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Infrared does not work

When i click on the infrared hardware icon, it tells me that the device is working properly yet even when activated it does not sense any device. its not even included in the task bar yet that box in its propeties is marked. if it needs drivers, where can i download them on internet freely?

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You should probably try downloading the drivers and what not. Try finding them on the manufacturers website under the support/downloads and looking up your model of computer.

Posted on Sep 20, 2007


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Posted on Jan 02, 2017


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Hi.. the safely remove icon doesn't appear..and i cant safely remove my hardware even if i eject it still it appears on my explorer..if the driver id missing then why it can run on my computer and able to...

The safely remove icon just tells you when no activity is occuring to the flash drive or portable HD so that you don't corrupt data while its writing to the drive. It still shows up in the explorer because it is still connected. If you clicked Eject and it says it's safe to remove then remove it. It might even be safe to remove if you're sure the device is not being used at all.

Mar 09, 2011 | Computers & Internet

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No active mixer, volume control i did the services.msc thing, still no audio

Your question is not cleared. You indicated two opposite problems. One no sound and other volume control if not available. Lets try the both. First relating to volume control. Click on START BUTTON - CONTROL PANEL - here double click on SOUND AND AUDIO DEVICE - now on the VOLUME TAB check mark on "place volume icone in the taskbar, click APPLY, OK.

NOW, solution #2 if your sound card is not properly installed or some of the files have gone corrupt. Right click on MY COMPUTER icon click on property, locate and click on HARDWARE click on DEVICE MANAGER here locate Sound, video and game controllers if there is any YELLOW COLORED MARK on it, it indicates that your sound card is not working or not installed properly. In this window you see monitor shaped Icon, which if also used for refreshing. First click on plus (+) sign and highlight sound card then refresh it by clicking icon stated above. If the problem remains as it is, then uninstall from the same window, and refresh it and window will install automatically. restart the computer once. REMEMBER TO VOTE ME.

Sep 22, 2010 | Computers & Internet

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I connect my device(philips gogear Vibe 4g.)The device shows as "connected device"on "Media Converter for Philips" program , and when converting VIDEO files is "done" , report screen shows "NO DEVICE...

Hello :
1: Unplug your Mp3 player . 2: Restart system .
3: Plug the Mp3 player again . If the system didn't recognize Mp3 player this time , then :
1: Go to [ my computer ] icon on desktop .
2 : Mouse right click .
3 : Scroll down to properties .
4 : On properties click [ Hardware] .
5 : Click [ device manager ] .
6 : On device manager check if all [ USB ports ] are properly installed and working fine .
7: If there are [ question marks or wrong marks ] on the ports then they don't work properly .
This is what you need to do , if they don't work properly ;
1 : Right click on the none working ports .
2 : Scroll down to properties .
3 : On general click [ reinstall the previous program ] .

8f47b2d.png My computer icon .

Device manager
USB mass storage device problem [ not working properly ] . Here you should right click on the none working device then go to properties and then ,
Troubleshoot .
I hope this will help .
rate please !

Mar 27, 2010 | Philips GoGear Flash MP3 Player

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No sound except from warning sounds.

go to control panel again and click the "device manager" and seek for sound, video and game controler (speaker icon) -->click "+" whill show u is the hardware work properly or not, if not work properly will signity with "?" --> right click and click update driver
(if u have cd sound card driver do it while cd software inserted)

or reinstalling your sound card device software

open control panel-->double click add new hardware icon and follow instruction if ask are conected with the hardware click yes then next.. that way wil show u waht sound card type of yours -->
note : the "?" icon is the hardware need to a driver and not yet be installed..

i hope this will solve ur problem

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Apr 23, 2009 | Logitech QuickCam Pro 9000 Web Cam

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I have a problem to use my bluetooth on my laptop

First of all, check whether your Notebook is having Bluetooth devices or not since the Remote Controller you are using works based in Infrared like the Remote Controll like the remote controller in Televisions.
To check whether your Notebook is having a Bluetooth hardware or not, go to Device Manager by following the steps below :
Right Click on My Computer and select Properties in the list.

Now go to Hardware tab and click on the Device Manager button.
Device Manager window opens in a seperate window.
Check if there are any entries with Bluetooth in the the Device Manager.
If you find any entries with such name, click on the [+] mark next to it to expand the tree.
If you find any entries called Bluetooth emulator, it is just the software you had installed and not the Bluetooth Hardware which you can use to transfer data.
If the Bluetooth hardware is installed in your Notebook, there should be HP Integrated module with Bluetooth.
However, to use Bluetooth, the Wireless button should be turned on.
Just follow this steps and make sure that your Notebook is installed with a Bluetooth Hardware and get back to us if the Notebook is having Bluetooth hardware and unable to use it.

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regarding w/ your USB you can check it there....

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check driver installed in device manager,check wireless link in control panel.
make sure phone infrared is activated and close enough to pc.when pc picks up device icon in sys tray will appear (infrared in range)

Apr 08, 2008 | Computers & Internet

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