HP Xw9300 HP xw9300 Service and Technical Reference Guide - Page 150

Table 5-27 Display Problems (continued) Problem Cause Solution Monitor does not function Monitor without energy properly when used with energy saver capabilities is being saver features. used with energy saver features enabled. Disable monitor energy saver feature. Dim characters. The brightness and contrast Adjust the monitor brightness and contrast controls. controls are not set properly. Cables are not properly connected. Check that the graphics cable is securely connected to the graphics card and the monitor. Blurry video or requested resolution cannot be set. If the graphics controller was Install the video drivers included in the upgrade kit. upgraded, the correct video drivers might not be loaded. Monitor is not capable of displaying requested resolution. Change requested resolution. The picture is broken up, rolls, jitters, or flashes. The monitor connections 1. Be sure the monitor cable is securely connected might be incomplete or the to the workstation. monitor might be incorrectly 2. In a two-monitor system or if another monitor is adjusted. in close proximity, be sure the monitors are not interfering with each other's electromagnetic field by moving them apart. 3. Fluorescent lights or fans might be too close to the monitor. Monitor must be degaussed. Degauss the monitor. Vibrating or rattling noise coming from inside a CRT monitor when powered on. Monitor degaussing coil has None. It is normal for the degaussing coil to be been activated. activated when the monitor is powered on. Clicking noise coming from inside a CRT monitor. Electronic relays have been None. It is normal for some monitors to make a activated inside the monitor. clicking noise when turned on and off, when going in and out of Standby mode, and when changing resolutions. High-pitched noise coming from Brightness and contrast inside a flat panel monitor. settings are too high. Lower brightness and contrast settings. Fuzzy focus; streaking, ghosting, Flat panel monitor's internal 1. Select the monitor's Auto-Adjustment option in or shadowing effects; horizontal digital conversion circuits the monitor's on-screen display menu. scrolling lines; faint vertical bars; might be unable to correctly 2. Go to the HP Support Web site and check for an or unable to center the picture interpret the output updated display driver. on the screen. (Flat panel synchronization of the monitors using an analog VGA graphics card. input connection only.) Certain typed symbols do not appear correct. The font you are using does not support that particular symbol. Use the Character Map to locate the and select the appropriate symbol. Click Start > All Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document. 150 System Diagnostics and Troubleshooting