Table 4-4
External display problems
Problem
Cause
Solution
Blank screen (no video). The cable connections are not
correct.
Verify the cable connections from the monitor to the
computer and to a working electrical outlet.
The monitor is off.
Turn the monitor on (LED is on). You might need to refer to
the monitor manual for an explanation of LED signals.
Screen blanking utility installed or
energy saver features enabled.
Press a key or the mouse button and, if set, enter your
password.
System ROM is bad; system is
running in FailSafe Boot Block
mode (indicated by 8 beeps).
Reflash the ROM using a SoftPaq.
Processor does not support
graphics output and no discrete
graphics card is installed. NOTE:
Power LED flashes red 6 times
(once every second), followed by
a 2-second pause, followed by 6
beeps.
Either:
●
Install a processor with graphics support.
●
Install a supported MXM graphics card.
Computer is in Hibernate mode.
Press the power button to resume from Hibernate mode.
Multiple displays are not enabled
in the graphics control panel.
Go to the graphics control panel and enable multi-display
by selecting either clone mode or extended mode.
The graphics driver is not loaded. Install the latest graphics driver.
The graphics driver is not working
properly.
1.
When you see
Press F8
in the bottom-right corner of
the screen, restart the computer and press
F8
during
startup.
2.
Using the keyboard arrow keys, select
Windows
Safe Mode
, then press
Enter.
3.
In Windows, uninstall the graphics driver.
4.
Reboot the computer into the normal Windows mode.
5.
Install the latest graphics driver.
The display works
properly during the
POST but goes blank
when the operating
system starts.
The display settings in the
operating system are
incompatible with your graphics
card and monitor.
1.
For Windows, restart your computer in Windows Safe
Mode.
2.
After the operating system starts, change the display
settings to match those supported by your graphics
card and monitor.
3.
Refer to your operating system and graphics card
documentation for information about changing display
settings.
Multiple displays are not enabled
in the graphics control panel.
Go to the graphics control panel and enable multi-display
by selecting either clone mode or extended mode.
The graphics driver is not loaded. Install the latest graphics driver.
Troubleshooting scenarios and solutions
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