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My Samsung model 179V screen has gone dim. If I press the brightness button I get a good bright picture. Is there any diagnostics I can use?

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Adjust video card gamma make sure thers no auto dimmer feture turned on ok need help email me drummernick2002@aol.com live help thx nick

Posted on Jun 08, 2008

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How do you adjust brightness on a Gateway ZX4971. There are no buttons on the monitor.


My Gateway monitor instructions refer to buttons located on the right side. The procedure calls for pressing the Auto button first to set the display image for the current screen resolution then pressing the Menu button to open the on-screen display (OSD) menu. You can move through the OSD menu to select parameters such as Picture (brightness).

Dec 18, 2014 | Gateway PC Desktops

1 Answer

Dell latitude lcd screen lamp dims


It could be 3 things:

1) Windows settings:
  • Click "Start" and then "Control Panel."
  • Click "Power Options."
  • Click "Choose when to turn of the display" located in the left-hand sidebar of the Control Panel interface.
  • Set "Dim the display" to "Never" for "On battery" and "Plugged in" and then click "Save."
2) Ambient light sensor:
Some latitudes come with an ambient light sensor which automatically changes your brightness depending on ambient light. Toggle it on/off by holding down the Fn key and then pressing the Left arrow key.

3) Brightness turned down.
Latitudes all have adjustable brightness, press the Fn key plus the up/down keys to adjust. Some old latitudes have this setting on the F5/F6 keys instead of up/down. Look for blue icons that looks like lit and unlit suns.

If the above fail, your CCFL (Cold Cathode Florescent Lamp) tube in your screen is possibly going bad. They are $10-$20 on ebay and pretty easy to replace. Just search for "CCFL" on ebay and include the exact latitude model you have. All CCFL tubes use the same power, just the length matters, but people on ebay include model numbers so you can be sure it will be an exact fit with your laptop.

Replacing the CCFL is easy, you will need a phillips screw driver, and possibly a shim/flat-head screw driver, that's it. Just watch a related youtube video by searching for "how to replace ccfl latitude" for a number of good step-by-steps.

Dec 01, 2013 | PC Desktops

1 Answer

How can I dim my screen?


Locate the Fn (Function) key on your keyboard. It may be on the bottom left side with dark blue letters. Locate the two "brightness" keys near the top of the keyboard. These will be in the "F" keys, possibly if F6 and F7. They should have little sun pictures or something similar to indicate brightness. Hold down the Fn key while pressing F7, or whichever "F" key your laptop uses to increase brightness. Tap F7 repeatedly until you reach the desired brightness. Fn must be held down as you continue to tap. Hope this helps.

Dec 14, 2012 | PC Desktops

1 Answer

Screen goes dim and bright


have you checked the connections on your VGA cable

sounds like the cable is either on its way our or not getting a good connection make sure all screws are tight if this doesnt work might be worth borrowing a cable if you can before purchasing one just in case its the monitor that is dying

Dec 14, 2011 | Dell PC Desktops

2 Answers

How do I brighten the screen. It is very dark.


Okay on you monitor there is a button there you press its labeled with a little picture of a monitor with a arrow on it or in to that regard you push that button and there should be onscreen menu you use the + and - to scroll to the correct function you want once you done that you should be able to save your settings. This is all done on the monitor!


Please do click the accept button if this helps , Thanks

Nov 05, 2009 | Acer Veriton M410-UD4000C Athlon 64 X2...

1 Answer

My laptop screen is very dim, cannot read or see looks faded


Try using the brightness controls on your keyboard to brighten the screen. If that doesn't work then that means either the lcd or the inverter has gone bad.


Apr 14, 2009 | PC Desktops

1 Answer

Samsung SyncMaster 931BF 19" Monitor. Screen was working fine. But now after raising the resolution past 1280X1024, the screen wouldn't display anything. I tried it on my older monitor, a CRT. It...


This is because your screen is not compatible with any resoultion past 1280 x 1024. Look at your screen's specifications here: http://downloadcenter.samsung.com/content/UM/200602/20060210090838125_BN59-00521A-01Eng.pdf (Page 76 listed as Maximum resolution)

If you want to go past that, you must purchase and/or use a different monitor. Just be sure to look at the Maximum Resolutions BEFORE you purchase a new monitor!

Nov 25, 2008 | PC Desktops

1 Answer

Backlight only stays on for a few seconds on compaq c700 that is only a year old


When the external AC power supply is unplugged from a notebook, the LCD display will dim to conserve on battery power. During times of heavy battery power operation; such as during the startup or boot process, the display may be very dim or barely readable. If the display remains dim when the notebook is operating on the Windows desktop, follow the steps below to resolve problems with display brightness Restart the notebook with AC power Follow the steps below to determine if the dim display is due to a hardware failure:
  1. Connect the AC adapter to the notebook and a working electrical outlet.
  2. Power down the notebook PC by pressing and holding the power button for 5 seconds.
  3. Press the power button again to start the computer.
If the display is still dim after restarting with the AC adapter connected, try changing the LCD brightness. Adjust the LCD brightness using the function keys From the Windows desktop, hold the fn key and press the f7 key c00776226.jpg to increase or the f8 key c00776225.jpg to decrease the brightness of the display. If using the function keys does not resolve the problem and you have a Lid Actuator on your particular model, check the movement of the Lid Actuator switch to determine that it moves freely and is not stuck. NOTE: The key numbers ( f7 or f8 ) may vary depending on the notebook PC; however, the images on the keys should be familiar. Check the movement of the Lid Actuator switch The Lid Actuator switch is available on some models. It is a small button or switch located above the keyboard near the hinge for the LCD. Pressing this switch when the computer is on may turn the notebook display off, or it may cause the notebook to enter a different power state. Press the switch two to three times while observing the display. If the display does not return to normal brightness when the switch is released, the switch may be sticking and need to be repaired. Contact HP service and support for further assistance. If the display turns off when the switch is pressed, the power management function may be set to hibernate or turn off when the lid is closed. Install updated BIOS and drivers To resolve certain hardware and software issues, use HP Health Check to automatically search the HP web site for an updated BIOS as well as any updated software and drivers. To launch HP Health Check, follow the steps below.
  1. Click Start , type health into the search field, and then select HP Health Check from the list. HP Health Check displays a list of available BIOS, software, and driver updates for your particular model.
  2. Click the description link for any BIOS, software, or driver updates, and then follow the on-screen instructions. You can only install one update at a time.
  3. Repeat steps 1 and 2 above for all updates that you want to install.
You have now installed the available BIOS, software, and driver updates for your particular computer model. Contact HP service and support If the display remains dim after doing the troubleshooting steps listed in this document, contact HP service and support for further assistance.

Oct 15, 2008 | PC Desktops

1 Answer

Dim screen ph nx9110


good morning sir,,

now u have to find a button in ur keybord which has symbol of sun and a + beside it. do press the specified button to access the button(function btn,shift btn) nad te brightness button,

another method is :
right click in desktop- goto properties - clik setting - adjust the gamma settings

fixed by fixya

Jul 08, 2008 | HP PC Desktops

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