Solving Display Problems - HP dc5700 - Microtower PC Troubleshooting Manual

Solving Display Problems

If you encounter display problems, see the documentation that came with the monitor and to the common
causes and solutions listed in the following table.
Table 2-6 Solving Display Problems
Blank screen (no video).
Cause
Monitor is not turned on and the monitor light is not on.
Bad monitor.
The cable connections are not correct.
You may have a screen blanking utility installed or energy
saver features are enabled.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Computer is in standby mode.
Monitor cable is plugged into the wrong connector.
Monitor settings in the computer are not compatible with the
monitor.
Cannot enable integrated graphics after installing a PCI Express graphics card.
Cause
The SDVO connector on the system board has the physical
appearance of a PCI Express x16 connector; however, the
platform does NOT support the use of conventional PCI
Express cards or reversed-layout ADD2 cards.
ENWW
Solution
Turn on the monitor and check that the monitor light is on.
Try a different monitor.
Check the cable connection from the monitor to the computer
and to the electrical outlet.
Press any key or click the mouse button and, if set, type your
password.
Reflash the system ROM with the latest BIOS image. See the
"Boot Block Emergency Recovery Mode" section of the
Desktop Management Guide on the Documentation and
Diagnostics CD for more information.
Be sure that the monitor can accept the same horizontal scan
rate as the resolution chosen.
Press the power button to resume from standby mode.
CAUTION: When attempting to resume from
standby mode, do not hold down the power button for
more than four seconds. Otherwise, the computer will
shut down and you will lose any unsaved data.
Ensure that the monitor is plugged into an active connector on
the rear of the computer. If another connector is available,
connect the monitor to that connector and reboot the system.
1. In Windows XP Control Panel, double-click the Display
icon and select the Settings tab.
In Windows Vista Control Panel, under Appearance and
Personalization, select Adjust screen resolution.
2. Use the sliding control to reset the resolution.
Solution
The platform only supports the use of normal (or non-reversed)
layout ADD2 (Advanced Digital Display 2) adapter cards
inserted into the SDVO (Serial Digital Video Output) connector
on the platform's system board. ADD2 cards are used to give
multi-monitor capabilities to the integrated graphics controller.
Solving Display Problems 23