How to fix the problem the vertical line on Boot Screen?

In safe mode your Windows drivers for the graphics card are disabled and so you won't get DirectX working
Do you still get the blue line on booting? That suggests a hardware problem.
If it's simply not working in normal mode and otherwise looks OK then while in safe mode uninstall the Vaio version of the nVidia driver and normal mode should work again using the default Microsoft driver for the 8400M. Then once running in normal mode reinstall the driver as above.

Depending on what you are trying to play the 8400M is a bit of a lightweight and might simply be unable to cope with what you are asking it to do.

ASKER

Hello

Thank you for the response.

In safe mode, i have uninstalled the Nvidia Graphic driver from device manager, then it asked to restart,so it restarted then it back to normal now. When i reached to the normal display, it already automatically detected the nvidia driver and asked to restart. So i skipped that "Restart" option, decide to install graphic card update from the link above.

When i have done that, it again have Vertical Blue line and still blank.

Look forward hearing from your response.

I think you have a physical problem with your graphics system.
Remove the driver again in Safe Mode, reboot and allow Winodws to reinstall then restart.
You really need to reboot between driver installs so skipping the restart and adding another driver install may have confused things.

Allow the restart this time and see how the card performs - then check in Device Manager if the Microsoft or nVidia driver is loaded.

ASKER

Hello Masqeraid,

I have followed your instruction regarding to restarting, after reaching to normal display, it showed to Nvidia installed and required to restart again, before reaching restart, i check in the device manager, it showed "Nvidia" with yellow mark. then i clicked restart button. then i recieved same problem.

However, you know when you uninstal the driver, i recieved the tickbox saying "Delete the driver software for this device", i left it uncheck then restarted the computer.

Should i check that option?

Yes

ASKER

Hi Masqueraid.

I have checked this option, then it did went to the Normal display but automatically install hardware nvidia device. Check the device manager, it still there with Nvidia with yellow mark.then restart it then same issue.

Either:
The driver as stored on your PC has gone corrupt.
- Fix is download a new copy and reinstall.
Or the game overheated your video and it's damaged.
- Fix is to replace the video card, which in a laptop often means a new motherboard.
.

ASKER

Hi PCBonez,

I have already download new copy of update link from above comment. There is no changes.

Regarding about game overheated, i have a cooler underneath the laptop, the temp stay around 55 - 65 degree.

changing the new motherboard proved too expensive to replace and caused bit of hassle for me. But safe mode seem to be working, i am not sure if there a reason to replace motherboard?

Thank for your response.

In safe-mode the full driver doesn't load which means all features [which physically means all parts if the IC chips and circuit] are not being used.
-
When you load the whole driver [when not in safe-mode] you are using a circuit or section of an IC chip that is not being used while in safe-mode. - That part [whatever it is] is defective.
.

Agreed - we've kinda ruled out the software - and - as you've got graphic corruption on your boot screen this also points at a hardware problem with the graphics circuitry. Looking on Google there are a few reports of people taking this model back to Sony and getting it fixed out of Warranty because it's a "known problem". How true that is I don't know.

You can't really run your laptop in safe mode all the time as it's not just the graphics drivers that don't load.

ASKER

Alright PC Bonez & Masqueraid, i agreed with your point

What are the alternative solution below?

? Taking to Sony Repair will worth more than my laptop.
? Risk take out the part and re-connect the circuit?
? Tragic Ending of the laptop for extermination?

So do you have last best solution to fix it?

Thanks

ASKER CERTIFIED SOLUTION

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ASKER

PCBonez,

You have spot on the headline on this. It true that my laptop have defective graphic card - see http://www.xbitlabs.com/news/mobile/display/20090811124335_Sony_Nearly_Secretly_Admits_Flawed_Nvidia_Graphics_Chips_Are_Inside_Vaio_Notebooks.html

Thank you for going deeper in researching the graphic defective. I appreciate that.

I will send the problem of Nvidia defective GPU to Sony and will see the outcome. Hopefuilly this has been worked after the response. Yes, it require good toning message!

I believe you got your point across there. Thanks

ASKER

With Sony Vaio FZ, contact Sony Corp for this defective graphic card.