Monitor Settings

I have a 21" Asus monitor.  When I hook it up to my Lenovo laptop (running Windows 7) the display only fills about 2/3 of the monitor (hardly larger than the laptop screen).  Attached are the Windows display settings, and I can't find anything in the Asus monitor Menu that allows me to expand the window to fill the screen.  The content on the screen are clear and appropriately proportional.  Asus monitor settings
Please help.

Thanks,

Phil
philsimmonsAsked:
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☠ MASQ ☠Commented:
Are you using multiple displays (as described in your screenshot)?
What model is the monitor and how is it connected?
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JohnBusiness Consultant (Owner)Commented:
Can you see if there is a newer Video driver for your Lenovo laptop?
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rindiCommented:
If you are duplicating your displays, the resolution you get will be that of the display with the lowest resolution. You either have to extend your displays if you want to use both, or disable the internal display. Then you can run the external display at the higher resolution it supports.
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philsimmonsAuthor Commented:
Thanks everyone.  Unfortunately, the problem remains regardless of the monitor or resolution settings in Windows.  I tried updating the Lenovo video driver, and it's up to date.  Puzzling.
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rindiCommented:
That's because, as I mentioned, you are duplicating your displays. That will use the resolution of the display that has the lowest resolution, which is your laptop's displays. If you want the full resolution of both your displays, you can't use duplication, but will rather have to extend the displays, for example so they are side by side, and when you move the cursor it moves from one display into the other display.
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☠ MASQ ☠Commented:
Could you answer the first two questions please?
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philsimmonsAuthor Commented:
It's an Asus Model PA248Q (24").  It's connected via a VGA.  I tried all the settings (duplicate, extended, and only showing the single monitor), but that didn't change the size of the display (which is 18" diagonal on the 24" screen).  I also changed all of the resolution settings.
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rindiCommented:
The Asus has a resolution of 1920x1200, and your laptop only seems to be able to have one of 1600x900. That is much lower than what the external monitor can display. In cloned mode you are using a resolution of only 1600x900 on your external display. It is normal that it will only use a small part of the screen that way.

Just change the mode to extended mode, and then your external display will use it's full resolution of 1920x1200, or disable the laptop's internal display.
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☠ MASQ ☠Commented:
What he said ^^

You can only run the different resolutions in Extended mode or solely on the external.

With either of those look at the properties on the Asus screen, what are the top two resolutions available with either extended or single (Asus only)

In case it helps the Win7 driver for the monitor is here
http://dlcdnet.asus.com/pub/ASUS/LCD%20Monitors/ASUS_PA248_Windows_7_WHQL.zip

Asus' Multi-Frame Utility here
http://dlcdnet.asus.com/pub/ASUS/LCD%20Monitors/MultiFrame_V1_1_0_3.zip
Help with Extended mode on their screens
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