Question about Compaq Presario 2100T Notebook

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Monitor not working

I was wanting to connect a monitor to my laptop and when I was adjusting the display settings I selected "disable this monitor." Now I cannot see anything on either the monitor nor the laptop. How do I get the laptop to be viewable again?

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Re: Monitor not working

Hold down the blue Fn key on your laptop when it's on and look at the F keys at the top of the keyboard, If your confused hit Fn and each F key at the top one by one until the screen comes back. Otherwise look for two squares on one of the keys in blue.

Posted on Dec 10, 2007

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Re: Monitor not working

If shutting down your laptop and restarting it didn't work and you still have a black screen on your laptop, You may have to when your computer first starts on the first logo press F2 or delete key until you get into you Bios, Reset Bios to Factory Default setting and press F 10 should save setting and you monitor should be back up and running. If that don't work get back to me, But I think I will work for you.

Posted on Dec 10, 2007

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Yellow screen

There are a variety of problems that can happen to the display monitor of an Acer laptop.
The most common problem is the screen fading or becoming too hard to see.
This can be corrected by adjusting the brightness levels.
Another common problem involves incorrect color, which can be resolved by adjusting the display color settings.
Yet another big problem is the display freezing or appearing jumpy, which can be resolved by updating the display driver.

Hold down the "Fn" key.
Tap the right-arrow key to brighten the display screen.

Tap the left-arrow key to darken the display screen.
Release the "Fn" key to save your display settings.
Right-click on the desktop and click "Graphic Properties."
Adjust the screen resolution by clicking "Display Settings" and choosing a resolution setting from the drop-down menu.
Click "Apply" to check the resolution of the display.
Click "OK" to save the resolution settings.

Adjust the color of the screen by clicking "Color Correction" and moving the brightness or contrast slider to the right or left.
Click "Apply" to check the color resolution of the display.
Click "OK" to save the color settings.

Click "OK" to exit the Graphic Properties application.
Update the Display Driver
Right-click on the desktop. Click "Personalize," "Display Settings" and "Advanced Settings."
Click the "Intel Graphics" tab and choose "Monitor Properties."
Click "Driver."

Click "Update Driver" and choose "Search Automatically."
Click "Install" to install the updated monitor driver. After the driver has been installed, click "OK" to restart the laptop when prompted.
Yellow screen
Yellow tinting in monitors can be caused by either a software calibration issue, bad cables or a worn out display and backlight.
Before you assume that the issue is a hardware one, determine if there are software settings that affect the color or if the cables are working correctly.
After checking these items, and if the yellow tint only occurs on one monitor and you cannot eliminate it, the problem is a display hardware issue and it is less expensive to replace the monitor.

Unplug the power cord from the monitor and replace it with another one.
This is a standard power cord used in printers, monitors and desktop PCs so you can trade it for a cable from another device.
Turn on the PC and monitor to see if the yellow is still there.
Turn off the computer and monitor.
Replace the video cable with another VGA cable from another monitor.
Use one from another computer before going out to buy one.
Restart the computer to see if the yellow tint is gone.
Right click any area on the desktop and click "Properties" from the list of options that appears.
Choose "Display Settings," then "Advanced Settings."
Select "Monitor" and click the "Calibrate Color" button.
Wait to see if the yellow tint goes away.
Locate the temperature color settings on the monitor.
Adjust these to see if there is a change in the color.
A warm color setting will give the screen images more of a yellowish tint.
Click on the "Start" icon, then click "Control Panel" and "System and Security" and choose "Device Driver."
Locate the video driver and click "Update."
Select the option allowing Windows to connect to the Internet to find an updated driver.
Wait for the update to complete in a few minutes.
Expect the yellowing issue to disappear.
Connect the PC to another monitor to see if the same problem occurs.
If the yellow tint does not appear on the newly connected monitor, the problem is a bad backlight or display and the monitor should be replaced with a new one.

Jul 21, 2013 | Acer PC Laptops

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 | PC Laptops

2 Answers

How to force external monitor on lap top monitor broken boots on external monitor than switches right to broken monitor tryed f f3 f5 does not work

The issue is the OS boots but is not SET for the external monitor

You can try and use the FN and the monitor key but as a perm thing you cannot do this, just cannot be done its boots on the port for the primary display and that is the way it was built. Now if the F# or F% does not work then the operating system is not set up for the external monitor with the display broken i do not see a solution for this one as a tech,

thanks for the question tho but i want to remain honest and say its not possiable.

please do rate my answer before you leave thanks.

Aug 24, 2010 | Acer Aspire 4520 Notebook PC

1 Answer

When I use the external monitor S-video port on my Dell Inspiron 1721 running Windows 7 it only displays in black and white despite the internal monitor showing the screen in color.

Okay. For Windows Vista OS.

Go to Control Panel.

Under the Control Panel Home, select Additional Options at the bottom right of the list.

Click on Appearance and Personalization:

At the top right corner of the dialogue box, under Personalization, select "adjust screen resolution"

This will bring you to display settings:

Click the button that says "identify monitors" As each is displayed, it will present a number for which is the default or main monitor (1 or 2) 1 is the main monitor.

To change the external to the main or number one monitor: simply drag the #1 monitor to the left side (if not already there) If it is, you'll want to set the external as the default:

Do this:

While in Display settings, if the external is the #1 monitor, make sure to check the box for "extend the desktop to this monitor" and "this is my main monitor" for the external display. This should switch all settings to the external monitor.

Also, make sure the the resolution is correct for the size monitor you have. For a 20" (such as mine, external Dell monitor) the resolution is at the highest (1920 x 1080).

Also make sure it reads (to the right of that) "highest 32 bit). If this is not an options, make sure you're adjusting the external monitor and not the laptop screen. Otherwise you may need to upgrade your video card.

You should not need to do this though.

After you have set this, go to Advanced Settings and select Monitor. You will see at the top, a list of two monitors; your external with it's brand and name - and the laptop screen type and name. Select the external monitor name: Click on properties, drivers and Update Driver, then select to Automatically search online for driver.

Please let me know if you need further assitance.


Guru, Premium Expert @

Jun 22, 2010 | Dell Inspiron 1721 (dndwna2_5) AMD Turion...

1 Answer

Hook netbook to tv with rca cables

after hooking it the TV we need to toogle to the external monitor.
Presentation or mirrored display mode
  1. Right-click an empty space on the desktop, and select Personalize .
  2. Select Display Settings
  3. When the New Display Detected dialog box appears, the images on both of the displays will be automatically mirrored.
  4. (Optional) To adjust the resolution, so that the display area of the monitors are the same size in the Display Settings window, select a monitor and slide the resolution slide bar. Click OK to save the setting and exit.
The computer is now ready to display the same screen on all output devices, from monitors to projectors. Press the fn and f4 function keys at the same time to switch the image from the notebook display, to the external monitor, or to both. Extending the desktop
  1. Right-click an empty space on the desktop, and select Personalize .
  2. Select Display Settings c01431951.jpg
  3. Select the monitor representing your second display. Click the Extend the desktop onto this monitor checkbox and click OK . NOTE: To help identify your monitors, click Identify Monitors . The numbers 1 or 2 are shown on the monitor icons to help you identify them.
  4. (Optional) To adjust the resolution, in the Display Settings window, select a monitor and slide the resolution slide bar. Click OK to save the setting and exit.
  5. (Optional) To change the direction the desktop will extend (left or right to match how the displays are physically set up), select a monitor and drag it to the desired position.

Apr 04, 2010 | Acer Aspire One Netbook 8.9" Notebook

1 Answer

Want to use a external monitor

  • Hi, once you have the External Monitor connected; go to, from the Desktop Screen, right click to open window, select Personalize. Scroll to find: Display Settings. You can make all the adjustments to correctly connect the monitor, updating drivers etc. Follow any given instruction when changes are complete. "Did this solution help?"

Feb 03, 2010 | Toshiba Satellite M35X-S163 Notebook

1 Answer

Toshiba L10 display will not work.have pressedfn+f1 and fn+f5 but to no avail.

There are steps to 'change' the visual effects of the "Display." 1. Right click on "Desktop", click Personalize, click, Display Settings. 2. Identify, Monitor used? 3. Down (arrow) select Monitors' graphics. 4. Adjust, (low>high) resolution. 5. Select, Colors (16 bit>32bit), etc. 6. Click, Advanced Settings, click Properties ("check device status"). 7. Update Drivers (only if, necessary?). 8. Click on "List All Modes" select valid (modes) for the monitor. Note: Always click on the 'Apply', and 'OK' buttons after application changes for the process to take effect. 9. Restart "Computer". *Next go, to: Screen Saver, in the Screen Saver Settings change 'Power' settings. *Next go, to: Start Menu, click on Product Name: (Toshiba), click 'Utilities' click, Toshiba Assist, click 'Optimize' click, "Display"; change power on display. *Next go, to Control Panel, in Mobile PC, click; "Adjust commonly used mobility settings" (changes the following); Display brightness, and Connect Display. “I hope this Fix it!”

Jan 22, 2010 | Toshiba Satellite L10 Notebook

2 Answers

I want to connect my laptop to my tv what software

On laptops you can also use the FN + F5. Some laptops may use different keys.

But that switches the display from laptop only to laptop PLUS extertnal or EXTERNAL only.

The key usually has a small monitor icon on it.

Nov 22, 2009 | Acer TravelMate 4001LCi Notebook

1 Answer

Hello, Computer = Acer Aspire 3680 Problem = Loaned to a friend in need, with computer working fine. When it came back, the screen resolution is so large, I can only see the left top quarter of the screen....

If using Vista, connect the external monitor try pressing Fn+ F5 or F6. If this doesn't work, try right-click desktop. select personalize, selct display setting at the bottom of list. in Display setting window click Identify Monitors on top right. if 2 pops up on external monitor, monitors are arranged properly. If external say 1 external is set as default and switch by clicking 1 and clicking pull down menu and select Generic PnP. then, set Resolution to high. Also make sure that Extend the desktop to this computer, isn't checked. Another test would be to check Exten Desktop to this Computer and select This is My Main Computer.
Otherwise you may want to try to Rollback the Driver for video card, an update from Microsoft my have been installed while your friend had it and these usually mess up video displays. You can also click Advanced Settings in Display Settings and click through the tabs that pop up to check operations and hardware acceleration settings.

Jul 18, 2009 | Acer Aspire 3680 Laptop

3 Answers

Connecting laptop with projector

.hi, if the projector connector is a "D" type same like your monitor, then u will have to adjust the display card properties and select a compatible monitor, or select TV if ur laptop has a Video out.also try out pal/ntsc selections. if it does not work , let meknow all the avilable connectors on the laptop.we'll figure it out, dont worry

Feb 12, 2008 | Acer TravelMate 2300 Notebook

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