Monitor Problems - IBM X3610 Installation Manual

Monitor problems

Some IBM monitors have their own self-tests. If you suspect a problem with your
monitor, see the documentation that comes with the monitor for instructions for
testing and adjusting the monitor. If you cannot diagnose the problem, call for
service.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Problem Determination and Service Guide to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Symptom
Testing the monitor
The screen is blank.
The monitor works when you
turn on the server, but the
screen goes blank when you
start some application
programs.
Action
1. Make sure that the monitor cables are firmly connected.
2. Try using a different monitor on the server, or try testing the monitor on a
different server.
3. Run the diagnostic programs (see the Problem Determination and Service
Guide). If the monitor passes the diagnostic programs, the problem might be a
video device driver.
4. (Trained service technician only) Replace the system board
1. If the server is attached to a KVM switch, bypass the KVM switch to eliminate it
as a possible cause of the problem: connect the monitor cable directly to the
correct connector on the rear of the server.
2. Make sure that:
v The server is turned on. If there is no power to the server, see "Power
problems" on page 62.
v The monitor cables are connected correctly.
v The monitor is turned on and the brightness and contrast controls are
adjusted correctly.
v No beep codes sound when the server is turned on.
3. Make sure that the correct server is controlling the monitor, if applicable.
4. Make sure that damaged BIOS code is not affecting the video; see the Problem
Determination and Service Guide for information about recovering from a BIOS
failure.
5. See the Problem Determination and Service Guide for information about solving
undetermined problems.
1. Make sure that:
v The application program is not setting a display mode that is higher than the
capability of the monitor.
v You installed the necessary device drivers for the application.
2. Run video diagnostics (see the Problem Determination and Service Guide for
information about running the diagnostic programs).
If the server passes the video diagnostics, the video is good; see the Problem
Determination and Service Guide for information about solving undetermined
problems.
Chapter 5. Solving problems
59