Dell P2011H User's Guide - Page 36

Horizontal/Vertical Lines Screen has one or more lines l Reset the monitor to Factory Settings. l Perform Auto Adjust via OSD. l Adjust Phase and Pixel Clock controls via OSD. l Perform monitor self-test feature check and determine if these lines are also in self-test mode. l Check for bent or broken pins in the video cable connector. l Run the built-in diagnostics. Synchronization Problems NOTE: When using DVI-D input, the Pixel Clock and Phase adjustments are not available. Screen is scrambled or appears torn l Reset the monitor to Factory Settings. l Perform Auto Adjust via OSD. l Adjust Phase and Pixel Clock controls via OSD. l Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode. l Check for bent or broken pins in the video cable connector. l Restart the computer in the safe mode. Safety Related Issues Visible signs of smoke or sparks l Do not perform any troubleshooting steps. l Contact Dell immediately. Intermittent Problems Monitor malfunctions on & off l Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. l Reset the monitor to Factory Settings. l Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. Missing Color Picture missing color l Perform monitor self-test feature check. l Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. l Check for bent or broken pins in the video cable connector. Wrong Color Picture color not good l Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending on the application. l Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings OSD if the Color Management is turned off. l Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD. l Run the built-in diagnostics. Image retention from a static Faint shadow from the static image left on the monitor for a image displayed appears on long period of time the screen l Use the Power Management feature to turn off the monitor at all times when not in use (for more information, see Power Management Modes). l Alternatively, use a dynamically changing screensaver. Product Specific Problems Specific Symptoms Screen image is too small What You Experience Image is centered on screen, but does not fill entire viewing area Cannot adjust the monitor with OSD does not appear on the the buttons on the front panel screen No Input Signal when user controls are pressed No picture, the LED light is blue. When you press "+", "-" or "Menu" key, the message "No VGA input signal", or "No DVI-D input signal" appears The picture does not fill the entire screen. The picture cannot fill the height or width of the screen Possible Solutions l Check the Scaling Ratio setting in Image Setting OSD l Reset the monitor to Factory Settings. l Turn off the monitor, unplug the power cord, plug back, and then turn on the monitor. l Check the signal source. Ensure the Computer is not in the power saving mode by moving the mouse or pressing any key on the keyboard. l Check to make sure Video Source to VGA or DVI-D is powered and playing video media. l Check whether the signal cable is plugged in properly. Re-plug the signal cable if necessary. l Reset the computer or video player. l Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen. l Run the built-in diagnostics. NOTE: When choosing DVI-D mode, the Auto Adjust function will not be available. Universal Serial Bus (USB) Specific Problems Specific Symptoms USB interface is not working What You Experience USB peripherals are not working High Speed USB 2.0 interface is High Speed USB 2.0 slow. peripherals working slowly or not working at all Possible Solutions l Check that your monitor is turned ON. l Reconnect the upstream cable to your computer. l Reconnect the USB peripherals (downstream connector). l Switch off and then turn on the monitor again. l Reboot the computer. l Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer system. l Check that your computer is USB 2.0-capable. l Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port is used. l Reconnect the upstream cable to your computer. l Reconnect the USB peripherals (downstream connector). l Reboot the computer.