Flickering monitor - HP Compaq Presario CQ50-110US Laptop

Flickering monitor but laptop functions fine


Might be a bad monitor or the wron driver. Check your monitor on another computer, if still flickering, you should take it to repair.

The monitor is about to go bad. Replace it. Borrow a monitor from a family member, neighbor or friend just to see if the flickering stops. If it does stop your monitor is bad. If the borrowed monitor flickers, you will need to replace your Video Card in the computer.

The monitor is about to go bad. Replace it. Borrow a monitor from a family member, neighbor or friend just to see if the flickering stops. If it does stop your monitor is bad. If the borrowed monitor flickers, you will need to replace your Video Card in the computer.

Flickering on the screen can be caused by defective hardware in the computer or by improperly installed software monitor may flicker and goes into rolling state due to dust, overheating after a long continuous usage,loose circuitry or due to some electromagnetic interference with other like tv , UPS, large speaker systems etc.

FIX :

1.Try Re-installing your Video driver

2 If it is possible, connect a different monitor to the computer. If the flickering disappears, it is a fair indication that the monitor is defective, otherwise go to the next step.

3. Set up the computer and the monitor on a different place in your house. If the flickering disappears now, it is most likely an interference caused by something in the original location. Check for devices which can cause interference.

4. If the flickering persists, check the setup of your system. If available in the setup, make sure that the option Monitor Type is configured as Colour Non-Interlaced.

If you don't think any above possible reasons for the rolling or flickering state of your monitor then we recommend you to get your monitor checked by the monitor company at their respective service cente

Try connecting it to a different laptop/desktop, to see if the flickering "follows" the monitor. If not, then the video-card in your computer is the problem -- try connecting another monitor to your computer, to see if the flickering still happens.

The flickering is most likely the florescent backlight having a hard time starting, Just like in a light fixture, as it gets old, it takes longer to warm up to get full functionality.
If under warranty, contact Dell for a replacement, if not, then when it becomes untenable, replace the monitor. Prices are dropping drastically, an new 20 or 22 In can be bought for about $150 or less

See Veriables & P/S Resistances.

chech out some other devices near by to the monitor, they might cause interfearence and in a result your monitor flickers.

1. If there is nay CVT/UPS near your monitor put it away.
2. If you have any speaker without magenetic sealed it will cause flickering, keep it away from monitor.

Otherwise your monitor need to be get service. So please contact your manufacturer service centre.

Thanks
Iqbal

If you have some electrical equipments like CVT, UPS near to your monitor, please put them away. If the flickering is due to the maganetic interfearence then it will solve your flickering of screen. and even after this if you are not able to use your monitor buttun then please call your technical expert b.coz your monitor may got some physical problem.


Thanks
Iqbal

1. Flickering screen display
   
   Flickering on the screen can be caused by defective hardware in the computer or by improperly installed software, but it can also be caused by interference from external devices. The following examples describe situations in which your screen could start flickering:
   • Screen starts flickering because of interference caused by devices which generate magnetic fields, for instance:
     • a TV set
     • a laser printer
     • another monitor
     • fluorescent lights
     • hidden power lines
   • Apart from interference, an incorrect setting in your system CMOS setup can also cause flickering. On some systems it is possible to distinguish between interlaced and non-interlaced monitors. The setup of your system should always be colour non-interlaced.
   • Proximity to the monitor of fans, air-conditioning units or other devices with rotating motors.
   • The number of devices using power from the same electrical line. Are you overloading the plug?
   • Monitor placed on an unstable surface.
   • Improper video drivers, this is a software problem, see section B
   • An improperly configured or a defective video card.
   
   
   
2. Reinstalling the video drivers
   
   
   1. Start the computer.
   2. Click Start, select Settings, and click Control Panel.
   3. Double-click the System icon.
   4. Select the Device Manager tab in the System Properties window.
   5. Make sure that View devices by type is selected and locate Display adapters and Monitor in the list.
   6. Click the plus sign (+) in front of both items to get a list of installed devices.
   7. You need to remove every device by highlighting it and clicking the Remove button and OK when the warning message appears.
   8. After doing so for both items, they should disappear from the list.
   9. Close the Device Manager by clicking OK, and you will return to the Control Panel.
   10. Double-click the Add New Hardware icon.
   11. Click Next, select Yes when it asks "Do you want Windows to search for your new hardware?", and click Next twice to start searching for new hardware.
   12. This will take a few minutes and, after it is finished, you will have to restart the computer. Windows 95 or higher will automatically set up the correct monitor and video drivers.
   13. If the screen is still flickering, click Start, select Settings, and click Control Panel.
   14. Double-click the Display icon and select the Refresh tab.
   15. Change the Monitor Refresh Rates until the flickering disappears.
   16. If the flickering remains, go to step C.
   
   
   
3. Troubleshooting
   
   
   1. If it is possible, connect a different monitor to the computer. If the flickering disappears, it is a fair indication that the monitor is defective, otherwise go to the next step.
   2. Set up the computer and the monitor on a different place in your house. If the flickering disappears now, it is most likely an interference caused by something in the original location. Check for devices which can cause interference.
   3. If the flickering persists, check the setup of your system. If available in the setup, make sure that the option Monitor Type is configured as Colour Non-Interlaced.