White screen I recently purchased a toughbook cf-t2 which boots to a white screen. An external display works fine, but when I toggle through display modes the internal display stays white, even when set to external only. Any help is appreciated

The screen cable could be damaged around hinge area.
Try to connect an external screen (PC monitor or TV screen) via VGA port to see if you get any image.

Maybe you mess some connection of the lcd. Is the lcd has the power indicator? If yes then maybe u can some keys functions such Fn to make display out.

On ALL Panasonic Toughbooks you can
boot into safe mode as follows:

Make sure the Toughbook is OFF.

Power on the Toughbook and immediately
start to press repeatedly the "F8" function key
which is usually located above the number 7 key.

You only have 2-3 seconds to do this and this
will only work in Windows XP, Vista or Windows 7.

A "text-only" screen will come up. You can then
choose SAFE MODE or if you also need to
connect to the internet choose:
Safe Mode with Networking.

Use the UP or Down Arrows to highlight the
selected option and then press Enter.

That is it.

Good Luck!
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989

With any model of Panasonic Toughbook, the proper diagnostics would be to plugin an external monitor when the Toughbook in powered off, then turn on the power on the external monitor first and then finally turn on the Toughbook. If the problem is the video card then no image will display on the external monitor.

If you get an image on the external monitor, then the problems is the internal LCD screen.

The external monitor connects on the back or rear side of the CF29 in the external monitor port or VGA connector. This connector is typically "blue" in connector and has 15 pins (3 rows of 5 pins).

Good Luck and Regards from:
Richard, Montreal Based Panasonic Canada Authorized Toughbook Dealer since 1989.

reinstall yr os

xp requires at least 1g of memory to run and 10 g of hard drive space, if you dont have this it wont install

Try another monitor using the vga port if this works okay the inverter could be faulty

the problem is its a lcd liquid crystal leak you need to replace the lcd you can get them from dell.com

You could attempt to boot to safe mode, and run the Start> System Recovery > PC Recovery Application.

Otherwise, I'd boot to safe mode, select start, run, type: msconfig, select the startup tab, remove any unwanted startup items that may be causing the system crash.

Hope this helps.

There are a few possibilities here... It sounds like a Graphics Card problem. It may well be an issue on a certain resolution mode. Try changing the modes in windows control panel to see if you can replicate the problem. If you cant then it will likely be the Bios that needs an upgrade (Flash)
There is also a small chance that the LCD Cable needs to be reseated. One other tip is to plug in an external monitor and then check to see if that happens on the external monitor. If it only happens on the LCD then there wont be an issue with the graphics card and then leans towards a LCD Screen or cable problem. More diagnostics at: www.powerjackrepair.com