Display problem in d620

Step 1:

You can check this by first of all clicking 'start' then on the right hand panel click 'run'.

Step 2:

In the dialogue box that appears you will need to type 'dxdiag' (without the quotation marks) and press 'enter'.

Step 3:

This will bring up a new window with a loading bar at the bottom of it. Wait for it to fully load.

Step 4:

On the initial page, under the tab that says 'General', near the bottom it should tell you what version of DirectX you are running.

Step 5:

After this, you will need to click on the tab at the top that says 'Display'. This will take you to a new page. On this page there should be a box on the right with the heading 'Drivers'. The final piece of information in this box should say 'Driver Model: WDDM ...' (The ... indicates the version number that you are running.

Click Start/Control Panel/Administrative Tools then click Services. Put your mouse pointer between the columnar headings of Name and Description until it turns into a + then hold the left mouse button and drag the to the right so you can read the entries under the name.

Scroll down under the name column and find "Windows Firewall/Internet Connections Sharing (ICS) and double click on it. When the window opens under the General tab the Startup Type should be set to Automatic, if not change it to Automatic and click Apply, then OK.

That is the computer problem, try booting in safe mode to see it works OK, if it does, you can try uisng system restore to take it back the known working date before the problem start.

Hit F8 key while booting up if you use XP.
XP: http://support.microsoft.com/kb/315222

WINDOWS 7: http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode

Maybe it's an driver installation order problem, the system needs the audio drivers installed prior to the modem since I believe they are both on the High Definition Bus. Here is Dell's official install order for the D620 with integrated Intel graphics...


1. Install the Dell Notebook System Software on a Dell Portable system from the Drivers, Utilities and Applications CD.
2. Install the Intel® Mobile Chipset Driver.
3. Install the SigmaTel STAC92xx Audio Driver.
4. Install the Alps GlidePoint/StickPointer Driver on Your Dell Portable System
5. Install the Conexant D110 MDC 1.5 v.92 modem driver.
6. Install the Intel® 945GM/945PM video driver in Microsft® Windows® operating systems.
7. Install the Broadcom 57xx Gigabit Integrated Controller Driver
8. Install the Dell™ Wireless 350 Bluetooth® driver in Microsoft® Windows® operating systems.
9. Install the wireless network adapter in a Latitude D-series portable computer.
10. Install the O2Micro OZ601 Cardbus Controller in Microsoft® Windows® operating systems.

Dell Latitude D620
Bios A02
Core Duo T2600 @ 2.16ghz
2048 MB DDR2 667mhz
NVidia Quadro NVS 110M TurboCache
100gb 5400rpm HD
Philips SDVD8820 DVD+/-RW Combo
SigmaTel C-Major HD Audio
Broadcom NetXtreme 57xx Gigabit
Intel Pro/Wireless 3945ABG 802.11a/b/g
TrueMobile 350 Bluetooth
Windows XP SP2

Go to the microsoft website & download windows 7 compatability test. Run the test on that computer.
It should tell you. takes about 15 minutes to run

Jdrumboy

Method 1: Use the Windows XP Sound Troubleshooter How to fix it automatically
To fix this problem automatically, click the Fix It button, and then click the Run Now button. Then, follow the steps in the FixIt wizard.
a.button { background: url("/library/images/support/KBGraphics/PUBLIC/cn/FixItButton.jpg") no-repeat scroll 0pt 0pt transparent; width: 139px; height: 56px; display: block; cursor: pointer; }a.button:hover { background-position: right bottom; } Fix this problem
Microsoft Automated Troubleshooting Services: Diagnose and fix sound playback issuesNote This wizard may be in English only. However, the automatic fix works for all language versions of Windows.

may be its effected with the virus, get a good antivirus like "Microsoft Security Essentials" installed in your laptop. this antivirus is free for download but work only on registered windows so be sure that your windows is registered, then install this antivirus after it is downloaded and update it. after that, do the full scan. hope it will help

try windows xp professional. i am sure it will works

INCREASE SYSTEM SPEED AS START->RUN->MSCONFIG->STARTUP TAB->DISABLE SOME TAB IT WILL RUN AUTOMATICALLY FAST..

PLEASE SEARCH FOR NVIDIA center for driver www.nvidia.com/page/drivers.html - 40k