My customer was attempting to use her latitude d600 to drive a external
projector for a seminar. Somehow she managed to lose video on both the
internal lcd and the external display. Upon booting you have video
until Windows XP
loads (and presumably the point where the video driver loads) then the
screen goes blank while the system continues to boot up. The Fn + F8
keys DO switch activity between the two monitors but there is no
display. Also, in safe mode it will boot just past MUP to AGP440.SYS
and there it hangs. Tried switching modes in BIOS but it's PW locked. The customer says she dissabled something in the monitor settings but can't remember what it was!!
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the d600 has a 8 pins chip,like the c600 where the pasword/faxtory setting is stored.. it's located under the tape where the pcicma socket is..close to edge of the board it sais:UPW1 I think you can use the paperclip methode like the c600 wich means short two pins ( 3& 6) while you power the lap
a Dell Latitude to the factory settings allows the user to restore the
Dell Latitude to the original operating condition as if it was just
taken out of the box. Dell system includes a restore utility called 'Dell Symantec System Restore' to reset or restore your Dell system to factory setting.
Before reset any Dell Latitude laptop, backup your all important data
and programs, otherwise you may lose it. It is recommended to use an
external storage device for your entire data backup, so that you couldn't lose it in any sudden occurring issue...
Step 2: Remove any other unnecessary external drive and restart your Dell Latitude laptop.
Step 3: Press 'F8' key continue until 'Advanced Boot Options' wouldn't be appear.
Step 4: Use your keyboard arrow key to select 'Repair Your Computer' from the list and hit 'Enter'.
Step 5: Now click 'Next' and login as the administrator account.
Step 6: Click 'Dell Factory Image Recovery and Data Safe options', select your language option and click 'Next'.
Step 7: Click the check box 'Yes, reformat hard drive and restore system software to factory condition' and click 'Next' to start Dell Latitude reset process...
process will erase all your previous changes that have been made to the
Dell Latitude laptop and reset the configuration settings to factory
check device manager to be sure your video card is functioning properly. If it looks good in device manager, shut off the pc, connect the external monitor/projector to the pc and start up the pc with the external device powered on. if no video from external device, then the video card/external connector is probably bad. Contact Dell if in warranty.
maybe the fn/f8 keys are not working. Can you get a safe mode boot prompt by repeatedly pressing the f8 key immediately following power up on the laptop? if no, f8 key is likely dead and you need a new keyboard. If f8 is okay, does the fn key work with other functions? if no, fn key is bad - new keyboard.
Hi there if you have plugged into your external vga port all you have to do is press fn + f8 that should now show the image on both laptop and external ie projector
Regards Al "alstech"
Switches the video image to the next display in the following sequence: the integrated display only, the integrated display and an external CRT monitor simultaneously, an external CRT monitor only, the integrated display and an external DVI monitor simultaneously, and an external DVI monitor only.
<Fn> + up-arrow key
Increases brightness on the integrated display only (not on an external monitor)
<Fn> + down-arrow key
Decreases brightness on the integrated display only (not on an external monitor)
The flickering may not be caused by a corrupt driver, it could be the impending failure of the fluorescent back light of the display or its high voltage supply.
Trying driver replacement though is the first thing to try.
If the original driver is corrupt, you can try the following;
- Right-click on My Computer - Left-click on Properties - Click on Hardware tab - Click on Device Manager - Locate and open Display Adaptors
- Locate the video listing for your
- Highlight and delete this - Reboot the computer
If Windows does what it should (no guarantee on this!), it will 'find' a 'new device' and install the driver for it.