Graphic device (VGA) makes the signal processing and image to the computer monitor, changing the parameters of this device will affect the display of the resolution, color, light. .. image.
In Windows XP there are ways to access the setup parameters for graphics devices as follows:
Start -> Control Panel -> Appearance and Themes (in the regime Category) -> Display
Start -> Control Panel (in the regime Classic) -> Display
Click the right mouse button on the space on the screen Desktop and select Properties
In Display Properties tabSettingsIn this have the following:
Screen resolution:
Setting the screen resolution by dragging the slider button Less to reduce and More to increase resolution.
When you change the resolution, please pay attention to the screen illustrated in the middle to identify this change.
Note:
Setting the correct resolution will help users to see clear images and text on the screen to facilitate the use of control programs.
Depending on the size of the screen or the requirements of the program that set the appropriate resolution, usually the appropriate resolution of the screen size CRT 14 “and 15″ is 800 by 600 pixels, The screen 17 “and 19″ is 1024 by 768 pixels, The remaining size depending on the setup screen to suit the user.
For LCD monitors, they must correctly set the resolution, the new show is all screen. Each screen has a maximum resolution allowed, if you change the resolution too high, the screen does not display images, then just wait 15 seconds or press Esc screen will return the same.
Color quality:
Color quality also known as color depth, this is the number of allowed colors displayed on the screen, the larger the image will be full and beautiful colors.
For the old life of computer graphics major equipment should only set the mode Medium (16 bit) to improve the speed but still have beautiful pictures.
Parameters in the Advanced expansion:
Screen refresh rate:
Change frequency of the screen, the high frequencies will help users without eyestrain when looking at the screen. But be careful because some increase had little screen will not tolerate too high frequencies.
Each screen can have different frequency ranges, typically about frequency 85Hertz will fit most monitors.
Some graphics devices will have the set of its own, this section allows setting many more parameters related to size, color, light up … and rotate images.
How to rotate the image:
In Display Properties -> Advanced -> Select the name of the graphics device -> Graphics Properties
Select Tab Rotation check Enable Rotation and select the back corner, Normal is normal (not back).
Once finished setting the parameters press the button Apply to apply immediately and check back after the press Ok to exit. In some cases the screen will appear to confirm the requested changes, the screen will automatically turn off after 15 seconds, press Yes to agree or No to return the same.
Note: After setting the parameters for graphics devices is complete, if the frames displayed on the screen distorted or incorrect size, use the buttons on the screen (Monitor) to correct.


