Lenovo PC 300GL Using your Personal Computer - PC300GL - 6561, 6591 - Page 104

Monitor Problems, Action, Attention

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Monitor Problems Screen flickers. The monitor works when you turn on the system, but goes blank when you start some application programs. The monitor works when you turn on the system, but goes blank after some period of computer inactivity. Action Set the monitor for the highest, noninterlaced refresh rate supported by the monitor and the video controller in your computer. Refer to the documentation that comes with your monitor and the Cirrus README file that is provided on the Ready-to-Configure Utility Program CD for your computer for information on the refresh rates supported by your monitor and the video controller in your computer. (There are several Cirrus README files on the CD; use the one that corresponds to your operating system.) Attention: Using a resolution or refresh rate that is not supported by your monitor might damage it. You can reset the refresh rate through your operating system. Instructions for doing this are included in the Cirrus README file that corresponds to your operating system, which is provided on the Ready-to-Configure CD. Refer to your operating-system documentation for further information on monitor settings. If this does not correct the problem, have the monitor and computer serviced. Verify that: 1. The monitor signal cable is securely connected to the monitor and the monitor connector on the computer. For the location of the monitor connector, see "Desktop Model Connectivity" on page 13. 2. The necessary device drivers for the application programs are installed. If the problem cannot be isolated and corrected, have the monitor and computer serviced. The computer is probably set for energy savings with the Advanced Power Management (APM) feature. If the APM feature is enabled, disabling APM or changing APM settings might solve the problem (see "Power Management" on page 53). If the problem cannot be isolated and corrected, have the computer serviced. 90 Using Your Personal Computer

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Monitor Problems
Action
Screen flickers.
Set the monitor for the highest, noninterlaced refresh rate
supported by the monitor and the video controller in your
computer.
Refer to the documentation that comes with your
monitor and the Cirrus README file that is provided on the
Ready-to-Configure Utility Program
CD for your computer for
information on the refresh rates supported by your monitor and
the video controller in your computer.
(There are several Cirrus
README files on the CD; use the one that corresponds to your
operating system.)
Attention:
Using a resolution or refresh rate that is not supported
by your monitor might damage it.
You can reset the refresh rate through your operating system.
Instructions for doing this are included in the Cirrus README file
that corresponds to your operating system, which is provided on
the
Ready-to-Configure CD
.
Refer to your operating-system
documentation for further information on monitor settings.
If this does not correct the problem, have the monitor and
computer serviced.
The monitor works
when you turn on the
system, but goes
blank when you start
some application
programs.
Verify that:
1.
The monitor signal cable is securely connected to the monitor
and the monitor connector on the computer.
For the location
of the monitor connector, see “Desktop Model Connectivity”
on page
13.
2.
The necessary device drivers for the application programs are
installed.
If the problem cannot be isolated and corrected, have the monitor
and computer serviced.
The monitor works
when you turn on the
system, but goes
blank after some
period of computer
inactivity.
The computer is probably set for energy savings with the
Advanced Power Management (APM) feature.
If the APM feature
is enabled, disabling APM or changing APM settings might solve
the problem (see “Power Management” on page
53).
If the problem cannot be isolated and corrected, have the computer
serviced.
90
Using Your Personal Computer