Compaq Pro 4300 Maintenance & Service Guide Pro 4300 All-in-One Business P - Page 112
Solving Display Problems, Blank screen no video., Cause, Solution, Category, View
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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 7-5 Solving Display Problems Blank screen (no video). Cause Solution Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on. Bad monitor. Try a different monitor. The cable connections are not correct. Check the cable connection from the monitor to the computer and to the electrical outlet. You may have a screen blanking utility installed or energy saver features are enabled. Press any key or click the mouse button and type your password (if set). System ROM is corrupted; system is running in Boot Block Emergency Recovery Mode (indicated by eight beeps). Reflash the system ROM with the latest BIOS image. You are using a fixed-sync monitor and it will not sync at the Be sure that the monitor can accept the same horizontal resolution chosen. scan rate as the resolution chosen. Computer is in Sleep state. Press the power button to resume from Sleep state. CAUTION: When attempting to resume from Sleep state, 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. Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the motherboard or an add-in card. Try moving the monitor connection to a different connector on the back of the computer Monitor settings in the computer are not compatible with the monitor. 1. In Control Panel, select Category from the View by list, then under Appearance and Personalization, select Adjust screen resolution. To access Control Panel in Windows 7, click Start, and then select Control Panel. To access Control Panel in Windows 8, from the Start screen, type c, and then select Control Panel from the list of applications. 2. Expand the Resolution box, and then use the sliding control to reset the resolution. Monitor is configured to use an input that is not active. Use the monitor's on-screen menu controls to select the input that is being driven by the system. Refer to the monitor's user documentation for more information on the onscreen controls and settings. Solving Display Problems 105