20 Most Recent Dell Latitude E6400 Laptop - Page 9 Questions & Answers

1. Click Start.
2. Click Control Panel.
3. Using the drop-down menu next to View by: in the upper-right corner, select Large Icons.
4. Click Mouse.
5. Click the Dell Touchpad or Device Settings tab.
   • When the Dell Touchpad tab option shows.
     1. Click on the picture of the touchpad.
     2. Click Gestures Settings (depending on your computer there may not be a gestures option).
     3. After changing the options click OK.
   • When the Device Settings tab option shows.
     1. Click the < + > next to open the options you want to change.
     2. After changing the options click OK.

plug in monitor and press Fn + F8

You may want to reset power, you can follow the steps to do that here Fix Your Laptop Will Not Turn On

You could be manually brighting it. Hitting the FN and UP arrow and Down Arrows Dim and brightens the screen, But if it does it on it own check your settings on Power Options in the control panel and on the left you will see Create a power plan sure setting are set to Balanced then click on next. You now get to pick to dim it when plugged in or on battery. I change it to "Never" becuase i like to see the screen brighter save your setting and your done.

Anonymous, Press the Fn + Left arrow key on laptop keyboard to disable Ambient Light Sensor to see if that will resolve the issue. Follow the steps in article http://dell.to/13f7ugH to adjust the brightness manually. Thank You, Dell-Jesse L Dell Social Media and Communities

Hi, I will be glad to help you. Please provide more information about the issue like are we talking about a wireless password or an internet password. Also send me a screenshot of the password prompt page. Note: As this is a public forum please try to block all your personal information and then send it. Thanks and Regards. Kiran Kumar. #iworkfordell.

The only way is to use the re installation disk that came with the laptop when you bought it. The disk should say something like "Reinstallation" or "Restore". You will loose all content. Similar to the picture below. May have different wording and color. If you are not computer literate, I would recommend getting help from someone that has experience.

I would suggest it's probably a screen resolution an older laptop VGA output was probably 800x600. The projector will also have a recommended and maximum resolution. The newer laptop will have a much higher resolution. You will need to adjust the laptop's video resolution to the optimum projector resolution

your operating system is corrupted you need to reinstall windows again

Hi, Request you to try following the below steps which might help:

(1)Click start. (2)Type services.msc in the search box and select the same. (3)The services screen appears and detect Human Interface Device. (4)Right click on it, select properties, select start up type as automatic and then start the service. (5)Now restart the computer. Now check if calibration panel gets detected. Thanks and Regards. Kiran Kumar. #iworkfordell.

go on to google and look for a password reset programme

First of all, you need the battery for a lot of the computer functions to operate. The wrong time and date can really cause problems for your computer. Replace the battery. Have your motherboard checked. Also, run setup when your computer starts to boot to make sure your system settings are correct.

Go to http://www.gmail.com and then sign in.

Your power saving settings might be configured to disable WiFi if the laptop is not plugged in . The power settings will be in the screens saver section, and in the control panel under Power Options (or just search for Power Options). Look at the settings for your power plan and tell it not to disable WiFi when not plugged in.

Monitor cable disconnected internally? follow http://www.insidemylaptop.com/replace-screen-on-dell-latitude-e5420-laptop/ and disconnect, clean and reconnect ALL monitor related cables. (You may need a new screen if that fails) You may check your laptop by connecting an external monitor first.

K, It is possible the flex connecting the screen is bad, needs to be changed. or the screen itself is bad.

Watch this video and fast forward to the 7:17 time and it shows you how to take it apart hope that helps