Friday, July 23, 2010

Lenovo Thinkpad T410/T410i Screen Black Flicker

Please use the method with discreet, I am not responsible for any damage caused by the method below:

Problem Description:
There's a issue of using 6Gb Ram on T410/T410i currently that results in screen

black flicker for a few seconds when using Lenovo supplied drivers v8.16.11.8955. It

normally happens on a 64bit Win7 Operating System, as far a I know the 32bit OS does

not have this issue.

The black flash/flicker usually happens when I am resizing any application window, or maximizing windows.

I check the windows event veiw, and I got the following error:

Log Name: Application
Source: Desktop Window Manager
Date: 7/24/2010 7:32:21 PM
Event ID: 9020
Task Category: None
Level: Error
Keywords: Classic
User: N/A

The Desktop Window Manager has encountered a fatal error (0x8007000e)
Error 7/24/2010 7:32:21 PM Desktop Window Manager 9020 None


1. Download latest nvidia driver.


2. Double click it, You need to exit setup application when it launched for the

first time.

3. Modify file NVLT.inf.

Open C:\NVIDIA\DisplayDriver\257.21\WinVista_Win7_64\In​ternational\Display\NVLT.inf

file in notepad and change the following line (you can use Ctrl+F to find it)

located in [NVIDIA_SetA_Devices.NTamd64.6.1] section from:

%NVIDIA_DEV.0A6C.01% = Section054, PCI\VEN_10DE&DEV_0A6C&SUBSYS_21C017AA


%NVIDIA_DEV.0A6C.01% = Section054, PCI\VEN_10DE&DEV_0A6C&SUBSYS_214217AA

4. Disable Automatic Drive for Graphic card NVIDIA NVS 3100M
4.1 Go to Start–>Search type in gpedit.msc
4.2 Click the file to open the Local Group Policy Editor and show Windows who is in

4.3 You want to go here: Computer Configuration->Administrative Templates->System-

>Device Installation. Click on the subfolder Device Installation on the left and on

the right side you will see the possible restrictions.
4.4 Right Click on "Prevent Installation of Devices that matches any of the device IDs"

settings" and edit this option, set it on ENABLED.
4.5 Click "Show..." button from "Options" section below:
4.6 Add value "NVIDIA NVS 3100M", then click "OK" to save the value.
4.7 Click "OK" policy editing window.

5. Uninstall existing lenovo nvidia driver, it will ask you to reboot, then reboot.
6. After you startup your computer, revert all you have done in step 4 "Disable

Automatic Drive for Graphic card NVIDIA NVS 3100M", enable it back

7. Install Nvidia Driver.
Go to C:\NVIDIA\DisplayDriver\257.21\WinVista_Win7_64\In​ternational\Display
click "setup.exe" to start the installation, Click "yes" to accept the unsigned

driver when you see the unsign driver window.

8. Restart your computer.

9. Done. Everything is ok so far, and even the auto-brightness is working too.

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