Dell Inspiron 3700 Reference Manual page 41

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Display: Dell™ Inspiron™ 3700 System Reference
Adjusting the Brightness • Expanded Video Mode • Video Drivers and Video Resolution • Customizing Video Resolution • Simul-mode • If You
Have Display Problems
Adjusting the Brightness
To accommodate local lighting conditions or video output from the software you are using, you can use the key combinations shown in
NOTE: When you run the computer on battery power, set your computer's brightness control to the lowest setting that affords
comfortable viewing. You can conserve up to 10 percent of battery power by using the minimum brightness setting.
Table 1. Brightness Key Combinations and Their Functions
Key Combinations Function
<Fn> + down arrow Decreases brightness
<Fn> + up arrow Increases brightness
<Fn> + right arrow Decreases contrast
(has no effect on an active-matrix display)
<Fn> + left arrow Increases contrast
(has no effect on an active-matrix display)
NOTES: You cannot change contrast on an active-matrix (thin film transistor [TFT]) display. Contrast adjustments are only necessary
on passive matrix displays.
To use key combinations on an external keyboard, enable the External Hot Key option in the System Setup program and use <Scroll
Lock> instead of <Fn>.
Expanded Video Mode
When working in text mode, you can select the font used to display text. Press <Fn><F7> to toggle between a regular serif font and a serif font with
extra leading. Expanded video mode is useful if you are working in 800 x 600 resolution on a 14.1-inch extended graphics array (XGA) display.
NOTE: You may have trouble using the display fonts feature with MS-DOS® programs that use downloaded fonts.
Video Drivers and Video Resolution
The Dell-installed video drivers work with the operating system to let you customize the video resolution and number of screen colors on your
display.
NOTE: The Dell-installed video drivers are designed to offer the best performance on your computer. Dell recommends that you use
only these drivers with your factory-installed operating system.
Table 2 lists the combinations of resolutions and colors that the computer supports.
Table 2. Display Resolution, Colors, and Refresh Rates
Resolution
640 x 480 (video graphics array [VGA])
640 x 480 (VGA)
640 x 480 (VGA)
Color Depth Computer Display Only
256 (8-bit) 60, 75, 85 hertz (Hz)
65 k (16-bit)
16 M (24-bit)
Available Refresh
60, 75, 85 Hz
60, 75, 85 Hz
Table 1.
Television as Secondary
Display
Available Refresh
60 Hz NTSC, 50 Hz PAL
60 Hz NTSC, 50 Hz PAL
60 Hz NTSC, 50 Hz PAL