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My desktop monitor turns on and when I get to the log in screen the backlight turns off. I can still see windows and I can still click and move stuff but its really dark. I tried unplugging the cord for video and it stayed on till it went in standby but when anything shows on the screen it turns off. I want to fix it myself please help it's a HP Pavilion F50

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  • 66 Answers

Check your monitor settings in the system control panel.

Posted on Aug 03, 2010

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How to change orientation of monitor


I'm a little unclear of what you are asking.

1) Screen has turned on monitor?

Press the CTRL key, and ALT key down at the same time.
Now tap on the Left Side Arrow key, until the screen is oriented correctly again.

2) Screen on monitor has shifted left, right, top, or bottom?
Use the controls on the monitor to set it correctly again.

3) Using dual monitors?
Right-click on an empty space on your desktop screen.
Left-click on Properties at the bottom of the list.
Left-click on Settings.

The monitor 1 icon is supposed to be your Primary monitor.
The monitor 2 icon is the Secondary monitor.

Ordinarily the Primary monitor is on the LEFT side, and the Secondary monitor is on the RIGHT side.
Just as shown in the Settings window.

If you wish to move a monitor to the other side, go to the monitor icon you wish to move.

Put your mouse cursor on the monitor icon you wish to move.
Left-click, and hold the left mouse button down.
Now drag the monitor icon you wish to move, to the other side.

Not doing it for you?
Then post in a Comment with more exacting information, as what it is that you wish to do.

Regards,
joecoolvette

Aug 02, 2012 | E-Machines eMachines Desktop PC

1 Answer

On my asus Eee Pc 1201HAB the display shifted to the left so the left side is partially cut off, how do i fix it?


1) Looking at the User Manual right now, and do not see a Hot Key on the Keyboard, that shifts the display.

[ Hot Key is also known as Special Key. The F1 through F12 keys at the top of the keyboard, and also for your model, colored keys on the keyboard ]

It could be the Screen Resolution is messed up. Not set at the correct settings.

Right-click on an empty area of your desktop screen.
At the bottom of the drop down list, click on Properties.

In the Display Properties window click on the Settings tab.

The screen pixel resolution should be set at 1366 X 768,

http://www.screentekinc.com/Asus_EEE_PC_1201HAB--12.1-inch--1366x768-wxga_hd-laptop-lcd-screen.shtml

In the middle of the Display Properties window, you see the blue subheading - Screen resolution

Right under this small subheading is a Slider.
The Pointed 'arrow' with the green tip, and top, slides back, and forth on the 'line'.

It should state 1366 X 768.
If it does not;

A) Left-click on that green tipped Slider. Hold the left mouse button down. Move your mouse, and move the Slider. (Drag)
Move it to the Left to Decrease the screen resolution, or to the Right to Increase the screen resolution.

Can't set it to 1366 X 768? Post back in a Comment.
ALSO, the Color Quality should be set to -
Highest (32 bit)

If not click on the blue down arrow to the right of this box.
In the list left-click on Highest (32 bit)

Now go below to the right, and click on Apply.
After go below to the Left, and click on OK.

Still no joy?
Believe the problem is hardware related.

Could be something as simple (?) as a bad Video Cable.
(Goes from the motherboard, up under the left Hinge, and then up into the Display Assembly)

Could be the screen Inverter.

However the Eee PC 1201HAB is supposed to use an LCD panel, that has qa series of LED's for backlighting.
Newer backlighting that uses a series of LED's for the Backlight, doesn't require a screen Inverter.

There were some LED backlit LCD screen, that DID use a screen Inverter. Mostly the older models of laptops.
This is what makes me think your LCD screen's Backlight, (And LED), may use a screen Inverter,

http://www.batterystyle.com/asus-eee-pc-1201hab-screen-p-168219.html

Scroll down,
"5. Disconnect the power cable and video cable from the Asus EEE PC 1201HAB Lcd panel. The power cable connects the screen's power source, the lcd inverter, to the backlight lamp attached to a side of the panel."

Probably just a generic form, and didn't take in consideration that the Eee PC 1201HAB netbook, uses a series of LED's, as a Backlight.

May not have a screen Inverter.

To explain;
Primer:

An LCD screen cannot produce light by itself,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

(Click on the window with the computer monitor in it )

It needs an additional light source. A Backlight is the additional light source.
A Backlight can be a CCFL, (Or two of them), or a series of LED's.

[ LED = Light Emitting Diode.
CCFL stands for Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

{Average thickness of a CCFL bulb is 2mm. That is a a little larger than 1/16th of an Inch.
The average length is almost as long, as the LCD screen is in height]

A screen Inverter is used to CONVERT the power from the laptop, for the LCD screen, and Backlight.

Do not see any listings for an Asus Eee PC 1201HAB netbook, for a screen Inverter. Believe the LCD screen uses LED's for a Backlight, and does NOT use a screen Inverter.

Which means if the problem is in the Display Assembly, the LCD screen itself will need to be replaced.
The LED backlighting is built-in.

[Hmmmm, I see a trend going on here that I do not care for, and just woke up to it. Have to replace the entire LCD screen, and cannot just replace the Backlight, or screen Inverter? Sounds like Ka-ching $$$$$ for somebody!

A screen Inverter usually averages from $20 to $40+.
A Backlight ( CCFL) usually ranges from $10 to $15.
An average LCD screen can range from $80 to $300+.]

How to know if the problem is in the Display Assembly?
Use a VGA monitor, and connect it to your laptop.

A) Laptop OFF, monitor OFF. Connect a VGA monitor's cable to the VGA port on the laptop.
(Left side rear. This is an example of a VGA Cable, and VGA connector { Port on a computer },

http://en.wikipedia.org/wiki/VGA_connector )

You can use an older CRT type of VGA monitor (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable attached.

B) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By default the display should automatically show, on the external VGA monitor.
IF not;

There are at least three display options:
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Press the Fn key down, and hold it down. At the same time tap once on the F8 key.
The F8 key is the Display Toggle-Over key.
(Give it a few seconds. Sometimes it doesn't happen right away)

Still no?
Hold the Fn key down again, and tap once more on the F8 key.

Is the display off to one side on the external VGA monitor?
Post back in a Comment.

Regards,
joecoolvette

Jul 02, 2012 | Acer Computers & Internet

1 Answer

My viewsonic flat monitor screen is not working properly! I plugged everything in and I've checked it so many times.I turn on the computer than When I turn on the monitor I can still kind of see the...


the viewsonic lcd has lost the backlight. realistic at the price of a new monitor the labor and parts to replace the backlight make repair not practical. there are parts and instructions available online and I have replaced them. not fun

Apr 18, 2011 | Computers & Internet

2 Answers

Screen lights up and goes back off with power still on. Ex.: When powering up computer, screen will show page for a few seconds then disappear untill a differant page comes up, show new page for a few...


Hi Larry,

I see that you are having issues with you LCD monitor intermittently showing Video for a few seconds then just dies to a black screen and will show windows in the desktop then go back to a black screen again on the issue ...

I believe that what you are experiencing on the issue is a screen refresh rate setting in windows.

we will need to check you video settings on the system for the issue.

Before we go and change some settings on your system we will need to boot into safe mode first.

1. From Shut down as soon as you turn your system on keep on tapping the F8 key on-top of your keyboard, this will give you the Windows Advance Options Menu.

2. On the List Select Safemode once highlighted press enter once, a bunch o things will show up on the screen this means that windows is loading in Safemode and windows will be loaded but all drivers will not so may encounter a screen that has big Icons and letters on it which is normal.

3. Log-in you windows profile if you have a password setup, once logged in do the following instructions below.

Changing the Screen Refresh rate:

1. Right Click on your Desktop/wallpaper to get the pop up options menu, click on personalize.

2. In the personalize window click on display lower left side of the window

3. Then Upper Left side of the new window click on Change Display setting then on the next page lower right side you will see Advance settings click on it.

4. you will get a small window click on the monitor TAB you will see there a drop down for the Screen Refresh rate click on the drop down and select 59 Hrtz, then Click on Apply then OK to save the settings work on your monitor.

Apr 06, 2011 | Computers & Internet

2 Answers

When i turn on my dell vostro a860 the screen is black.When I plug in external monitor shows pictures on both (monitor and laptop).When I disconnect external monitor the laptop works fine.The trouble is...


Windows Vista® 1 Right-click an open area of the desktop. 2 Click Personalize. The Personalize appearance and sounds window appears. 3 Click Display Settings. 4 Select the external LCD monitor in the drop-down menu.Monitors and Displays 51 5 In the Display Settings window, move the Resolution slider bar to the left or right to select a screen resolution that matches the native resolution of the external LCD monitor. 6 Click OK. Windows® XP 1 Right-click an open area of the desktop. 2 Click Properties. The Display Properties window appears. 3 Select the Settings tab. 4 Select the external LCD monitor in the Display drop-down menu. 5 Under the Screen resolution section, move the slide bar to the left or right to select a screen resolution that matches the native resolution of the external LCD monitor. 6 Click OK.

Jan 02, 2011 | Computers & Internet

1 Answer

I connected my laptop to my LCD TV using VGA cable. I changed the mode to VGA external monitor. Image/video appear perfectly fine during start up. but right after windows logged in for like 5 second the...


Easy way:
Press and hold Fn key, and then look at the F1-F10 keys.. Most likely it is F7, and has a picture like a computer screen.
So, press and hold Fn key, and then press F7 (or whatever key it is for your laptop). This will change your "presentation" settings, and thus switch back and forth from laptop screen, laptop screen + external screen (TV), just external screen (TV).
-------------

If this doesn't work as you expect, just try:

Instructions for Windows XP:

Open the Display Properties window by:
Start -> Run -> %windir%\system32\control.exe desk.cpl,@0,3
(this is the same window where you can change screen resolution).

There you will see two or more "screens", labeled: 1, 2, 3.

Click on "1", and you'll see:

[X] Use this device as the primary monitor
[X[ Extent Windows desktop onto this monitor

Click on "2", this is your TV.. Mark

[ ]
[X] Extent Windows desktop onto this monitor

Then change the resolution to 800x600.
Click Apply

=> now your TV should start showing you a picture.
You can move your mouse between the laptop screen and the TV screen.

If you want just the TV, you can make "2" to be your primary monitor, by clicking on [X] Use this device as the primary monitor.


Nov 04, 2009 | Haier 42EP24S 42 in. EDTV-Ready Plasma...

2 Answers

Screen goes black but still can see the desktop??


Yes this is a back-light problem. The fault could be the inverter board which supplies high voltage to the CCFL lamp or it could be a faulty CCFL lamp, this lamp is a mini fluro tube.
For service, parts and DIY info check out LCD Parts - click on this link to their WEB site : -
www.lcdparts.net

Oct 12, 2009 | HP w2207 Monitor

3 Answers

My screen is dark when the computer logs on (but I


Fn+F1 Decreases the display brightness. Fn+F2 Increases the display brightness.

Sep 24, 2009 | HP Compaq nx9030 Notebook

1 Answer

When i log on to my windows profile the screen


try reset the display settings click right on the desktop

choose diplay parametrers.

Mar 13, 2009 | HP w2207 Monitor

1 Answer

When i boot up my desktop the monitor comes on then goes off, it come back on momentarily when windows starts up and then goes off again. i can turn the monitor power off then on again and it comes on for...


Your backlight might be dead. Try using a flashlight to see if you can see a screen
when it turns black. If you can, its a backlight problem. What model of screen do you have?

Oct 25, 2008 | Computers & Internet

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