Minggu, 08 Desember 2013

Can I clone my laptop screen to an external monitor so that both screens display the same image?

Q. My laptop is the Compaq 2580US. I can extend the laptop screen via the s-video port to my Vizio LCD HDTV screen, but I can't clone (duplicate) the laptop screen onto the TV, so that the TV would show a larger version of the laptop screen.

A. Usually I hear the opposite complaint. You can clone the screen, but not extend.

Using Windows XP, right click on the desktop and go into properties
Click on the setting tab
You should see a graphic representation of your two monitors near the top of the screen
Click on the second monitor in the graphics
In the properties underneath, make sure that "Extended the screen" is not checked.
Apply that setting

Depending on your video card, the driver may have its own configuration utility. That could be overiding the Windows settings. Usually you can get to the utility by another tab in Desktop properties. Check under there.

Also many laptops have a key combination (such as FN+F8 on the Dells) which toggle the picture between CRT, LCD, and both without having to go into the properties. Check they documentation for your make/model for such a key combination.


Do all HDTVs have fuzzy or blurry picture?
Q. Hi I just bought a samsung hdtv lcd a550 series. I noticed that it kinda of fuzzy and sometimes a bit blurry on regular channels but even on the HD channels its not 100% crisp. ESPN basketball is also a little fuzzy and definitly has motion blur. Is this how all HDTV LCDs are or is it just my TV. I plan on returning it either way and Im wondering whether I should buy a vizio or sony?

A. With a good HD signal it shouldn't be fuzzy, but there are some situations which would give a fuzzy picture.

1) If you don't have HD programming you will get what could be called a fuzzy image

2) If you have cable or satellite some channels are less crisp than others due to compression of the HD signal (it varies by supplier and channel so it's difficult to specify). This is one area where off the air (OTA = antenna) based HDTV can be better than cable/satellite.

3) if there are scaling or deinterlacing issues due to a poor video processor and inappropriate selection of input resolution (e.g. 1080i instead of 720p) the picture can look blurry. This is difficult to predict and the right settings can only be determined by experimenting.

4) Some HDTV programming is really scaled SD material and looks worse than true HD.

Motion blur is a fact of life with LCD HDTVs -- particularly in 1080i.

The best way to find out if it is the TV or not is to feed a known good signal -- such as a Blu-ray disk via HDMI direct to the TV. Next best is an HD game or an upconverted DVD.

Good luck.





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