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To
diagnose
video
display
problems,
complete
the
following
steps:
1.
From
the
main
menu,
select
Video,
and
press
Enter.
2.
Select
Video
Memory
Test,
and
press
Enter.
For
the
video
test
error
codes,
see
“Video
test
error
codes”
on
page
167.
Running
video
tests
The
video
test
you
run
depends
on
the
type
of
monitor
installed
on
your
server.
Video
Monitor
Test
These
tests
verify
the
video
controller
output
in
addition
to
the
communication
between
the
controller
and
the
display
device.
Attribute
Test:
Use
this
test
to
make
sure
that
the
video
display
attributes,
such
as
blinking,
bold,
and
reverse
video,
are
working
correctly.
You
can
run
this
test
on
all
monochrome
and
all
color
monitors.
To
run
the
attribute
test,
complete
the
following
steps:
1.
From
the
main
menu,
select
Video,
and
press
Enter.
2.
Select
Attribute
Test,
and
press
Enter.
Color
Test:
This
test
displays
the
possible
colors
in
foreground,
background,
and
border.
You
can
run
this
test
on
all
color
monitors.
Text
Mode
Test:
Use
the
Text
Mode
test
to
make
sure
that
text
displays
correctly.
The
text
mode
tests
are
shown
on
the
following
table:
Test
Name
Test
Description
Type
of
Monitor
80
x
25
Display
Test
Tests
the
80
x
25
character
set
of
the
display
adapter,
displaying
the
entire
character
set
in
black
and
white,
then
in
reverse
video
in
video
mode
3
(mode
7
if
monochrome).
All
monochrome
and
all
color
monitors.
40
x
25
Display
Test
Tests
the
40
x
25
character
set
of
the
display
adapter
in
black
and
white,
displaying
the
entire
character
set
in
black
and
white,
then
in
reverse
video.
All
monochrome
and
all
color
monitors.
Graphics
mode
tests:
Use
the
graphics
mode
tests
to
make
sure
that
graphics
display
correctly.
The
following
subtests
appear
in
all
Graphics
Mode
Tests
(320
x
200,
640
x
200,
640
x
350,
640
x
480):
Subtest
Description
Text
and
Attribute
Test
Makes
sure
all
characters
are
displayed
in
the
proper
color.
Grid
Test
Verifies
the
graphic
dot
spacing
for
each
mode.
Aspect
Ratio
and
Display
Centering
Centers
the
monitor
display.
Circular
Pattern
Test
Centers
the
monitor
display.
Resolution
Reports
the
screen
resolution.
Animation
and
Flicker
Reports
the
video
controller
speed.
52
IBM
xSeries
450
Type
8688:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide