Appendix A Troubleshooting Solving Commo Solving Common Problems; Problems - HP LP2275w User Manual

A A T T
Solving Common Problems Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended The following table lists possible problems, the possible cause of each problem, and the recommended
solutions. solutions.
P P r r
S S c c r r e e e e n n i i s s b b l l a a n n k k . .
Image appears blurred, Image appears blurred,
indistinct, or too dark. indistinct, or too dark.
I I m m a a g g e e i i s s n n o o t t c c e e n n t t e e r r e e d d
Check Video Cable is Check Video Cable
displayed on screen. displayed on screen.
Input Signal Out of Range. Input Signal Out of Range.
Change resolution setting Change resolution setting
to 1680 × 1050 @ 60Hz (HP to 1680 × 1050 @ 60Hz
LP2275w Model) or Input LP2275w Model) or
Signal Out of Range. Signal Out of Range.
Change resolution setting Change resolution setting
to 1920 × 1200 @ 60Hz (HP to 1920 × 1200 @ 60Hz
LP2475w Model) is LP2475w Model) is
displayed on screen. displayed on screen.
HP Display LiteSaver HP Display LiteSaver
doesn't turn off the monitor doesn't turn off the monitor
screen. screen.
r r o o u u b b l l e e s s h h o o
o o b b l l e e m m P P o o s s s s
P P o o w w e e r r c c o o r r d d i i s s d d i i s s c c o o n n n n e e c c t t e e d d . .
Power button on front panel of the Power button on front panel of the
monitor is turned off. monitor is turned off.
Master power switch on rear panel Master power switch on rear panel
of the monitor is turned Off. of the monitor is turned Off.
Video cable is improperly Video cable is improperly
connected. connected.
Sc Scre reen
Brightness Bright
P P o o s s i i t t i i o o n n m m a a y y n n e e e e d d a a d d j j u u s s t t m m e e n n t t . .
is Monitor video cable is Monitor video cable is
disconnected. disconnected.
Video resolution and/or refresh rate Video resolution and/or refresh rate
are set higher than what the monitor are set higher than what the monitor
(HP supports. supports.
Input
(HP
The Activity Extension time has not The Activity Extension time has not
elapsed. elapsed.
o o t t i i n n g g
i i b b l l e e C C a a u u s s e e
en b b la lank nkin ing i g is a s act ctiv ive e . .
ness and and contra contrast a st are t re too oo low. low. Press
S S o o l l u u t t i i o o n n
C C o o n n n n e e c c t t t t h h e e p p o o w w e e r r c c o o r r d d . .
Press the front panel power button. Press the front panel power button.
NOTE: NOTE: If pressing the power button has no effect, press If pressing the power button has no effect, press
and hold the power button for 10 seconds to disable the and hold the power button for 10 seconds to disable the
power button lockout feature. power button lockout feature.
Turn the master power switch to On. Turn the master power switch to On.
Connect the video cable properly. Refer to Connect the video cable properly. Refer to Setting Up the
Monitor on page 6 Monitor on page 6 for more information. for more information.
Pr Pres ess a s an n y k y key ey o o n t n the he ke keyb yboa oard rd or or mo
inactivate the screen blanking utility. inactivate the screen blanking utility.
Press the the —/Auto —/Auto button on the front panel. If this does not button on the front panel. If this does not
correct the image, press the Menu correct the image, press the Menu button to open the OSD
Menu, and adjust the brightness and contrast scales as Menu, and adjust the brightness and contrast scales as
needed. needed.
P P r r e e s s s s t t h h e e Menu Menu button to access the OSD menu. Select button to access the OSD menu. Select
Image Control/Horizontal Position Image Control/Horizontal Position or
adjust the horizontal or vertical position of the image. adjust the horizontal or vertical position of the image.
Connect the appropriate video signal cable between the Connect the appropriate video signal cable between the
computer and monitor. Be sure that the computer power is computer and monitor. Be sure that
off while connecting the video cable. off while connecting the video cable.
Restart the computer and enter Safe Mode. Change the Restart the computer and enter Safe
settings to a supported setting (see settings to a supported setting (see Recognizing Preset
Display Resolutions on page 41 Display Resolutions on page 41) ) . Restart the computer
so that the new settings take effect. so that the new settings take effect.
The default Activity Extension value is set to 10 minutes. The default Activity Extension value is set to 10 minutes.
The HP Display LiteSaver will wait to detect no input or The HP Display LiteSaver will wait to detect no input or
movement from the keyboard or mouse for 10 consecutive movement from the keyboard or mouse for 10 consecutive
minutes after the Display Off time has passed, before the minutes after the Display Off time has passed, before the
So Solv lvin ing C g Com ommo
Setting Up the
move ve th the e mo mou u se se to to
button to open the OSD
or Vertical Position Vertical Position to to
the computer power is
Mode. Change the
Recognizing Preset
. Restart the computer
mon P n Pro robl blem ems s 35 35