Dell Latitude LM Reference and Troubleshooting Guide - Page 108

Color Attributes Subtest (40 x 25), Color Bars Subtest, Text Mode s Test, Graphics Mode Test

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Color Attributes Subtest (40 x 25) The 40-column x 25-line color attributes subtest is the same as the previous subtest except that the characters are displayed in 40-column by 25-line (double-wide) text mode. Type y if each character is displayed correctly; otherwise, type n. Color Bars Subtest The color bars subtest displays 16 bars in different colors with background intensity enabled. Under each bar is the name of the color that should be displayed. Type y if each color bar is displayed correctly; otherwise, type n. Text Mode Pages Test The Text Mode Pages Test checks the video subsystem's ability to map and present all available video pages on the display or monitor, one page at a time. The test displays eight successive screens, the first of which contains 21 lines of 77 zeros. The remaining seven screens are identical to the first, except that each screen substitutes a different numeral (1 through 7) for the zeros. Type y if all the rows of numbers on each screen are displayed correctly; otherwise, type n. Graphics Mode Test The Graphics Mode Test checks the video subsystem's ability to present graphics mode data and colors. This test displays a number of different screens, each of which allows you to check some aspect of graphics mode data and colors. The following subsections describe the Graphics Mode Test screens in the order in which they appear. 320 x 200 Graphics Mode Screens The Graphics Mode Test displays two successive 320 x 200-pixel graphics mode screens. The first screen displays three pyramids in red, green, and yellow. The second screen displays three pyramids in magenta, cyan, and white. Type y if all the pyramids are the correct colors; otherwise, type n. 320 x 200 16-Color Graphics Mode Screen The 320- x 200-pixel 16-color graphics mode screen displays a series of Xs in 16 different colors with the name of the color beneath each X. Type y if all the Xs are the correct colors; otherwise, type n. 640 x 200 16-Color Graphics Mode Screen The 640- x 200-pixel 16-color graphics mode screen displays a series of hexagons in 16 different colors with the name of the color beneath each hexagon. Type y if all the hexagons are the correct colors; otherwise, type n. 640 x 350 16-Color Graphics Mode Screen The 640 x 350-pixel 16-color graphics mode screen displays a series of octagons in 16 different colors with the name of the color displayed beneath each octagon. Type y if all the octagons are the correct colors; otherwise, type n. 640 x 480 2-Color Graphics Mode Screen The 640- x 480-pixel 2-color graphics mode screen displays three chess pieces. Type y if all the chess pieces are identical and displayed correctly; otherwise, type n. Figure B-3 shows part of this screen. B-4 Dell Latitude LM Reference and Troubleshooting Guide

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B-4
Dell Latitude LM Reference and Troubleshooting Guide
Color Attributes Subtest (40 x 25)
The
40-column x 25-line
color attributes
subtest is the
same as the previous subtest except that the characters
are displayed in 40-column by 25-line (double-wide) text
mode. Type
y
if each character is displayed correctly;
otherwise, type
n
.
Color Bars Subtest
The color bars subtest displays 16 bars in different colors
with background intensity enabled. Under each bar is the
name of the color that should be displayed. Type
y
if
each color bar is displayed correctly; otherwise, type
n
.
T
ext Mode Pages Test
The Text Mode Pages Test checks the video subsystem’s
ability to map and present all available video pages on
the display or monitor, one page at a time. The test dis-
plays eight successive screens, the first of which contains
21 lines of 77 zeros. The remaining seven screens are
identical to the first, except that each screen substitutes a
different numeral (1 through 7) for the zeros.
Type
y
if all the rows of numbers on each screen are dis-
played correctly; otherwise, type
n
.
G
raphics Mode Test
The Graphics Mode Test checks the video subsystem’s
ability to present graphics mode data and colors. This test
displays a number of different screens, each of which
allows you to check some aspect of graphics mode data
and colors. The following subsections describe the
Graphics Mode Test screens in the order in which they
appear.
320 x 200 Graphics Mode Screens
The Graphics Mode Test displays two successive
320 x 200-pixel graphics mode screens. The first screen
displays three pyramids in red, green, and yellow. The
second screen displays three pyramids in magenta, cyan,
and white. Type
y
if all the pyramids are the correct col-
ors; otherwise, type
n
.
320 x 200 16-Color Graphics Mode
Screen
The 320- x 200-pixel 16-color graphics mode screen dis-
plays a series of Xs in 16 different colors with the name
of the color beneath each X. Type
y
if all the Xs are the
correct colors; otherwise, type
n
.
640 x 200 16-Color Graphics Mode
Screen
The 640- x 200-pixel 16-color graphics mode screen dis-
plays a series of hexagons in 16 different colors with the
name of the color beneath each hexagon. Type
y
if all the
hexagons are the correct colors; otherwise, type
n
.
640 x 350 16-Color Graphics Mode
Screen
The 640 x 350-pixel 16-color graphics mode screen dis-
plays a series of octagons in 16 different colors with the
name of the color displayed beneath each octagon. Type
y
if all the octagons are the correct colors; otherwise,
type
n
.
640 x 480 2-Color Graphics Mode
Screen
The 640- x 480-pixel 2-color graphics mode screen dis-
plays three chess pieces. Type
y
if all the chess pieces are
identical and displayed correctly; otherwise, type
n
. Fig-
ure B-3 shows part of this screen.