Dell P2412H User's Guide - Page 52

Product Specific Problems Specific Symptoms Screen image is too small Cannot adjust the monitor with the buttons on the front panel What You Experience Image is centered on screen, but does not fill entire viewing area OSD does not appear on the screen Possible Solutions Check the Scaling Ratio setting in Image Setting OSD Reset the monitor to Factory Settings. Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor. Check whether the OSD menu is locked. If yes, press and hold the button above the Power button for 10 seconds to unlock (for more information, see Menu Lock). No Input Signal when user controls are No picture, the LED light is blue. pressed The picture does not fill the entire screen. The picture cannot fill the height or width of the screen 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. Check whether the signal cable is plugged in properly. Re-plug the signal cable if necessary. Reset the computer or video player. Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen. 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 slow. High Speed USB 2.0 peripherals working slowly or not working at all Possible Solutions Check that your monitor is turned ON. Reconnect the upstream cable to your computer. Reconnect the USB peripherals (downstream connector). Switch off and then turn on the monitor again. Reboot the computer. Some USB devices like external portable HDD require higher electric current; connect the device directly to the computer system. Check that your computer is USB 2.0-capable. Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port is used. Reconnect the upstream cable to your computer. Reconnect the USB peripherals (downstream connector). Reboot the computer. Dell™ Soundbar Problems Common Symptoms No Sound What You Experience No power to Soundbar - the power indicator is off No Sound Soundbar has power - power indicator is on Distorted Sound Computer's sound card is used as the Possible Solutions Turn the Power/Volume knob on the Soundbar clockwise to the middle position; check if the power indicator (Blue LED) on the front of the Soundbar is illuminated. Confirm that the power cable from the Soundbar is plugged into the adapter. Plug the audio line-in cable into the computer's audio out jack. Set all Windows volume controls to their maximum. Play some audio content on the computer (i.e. audio CD, or MP3). Turn the Power/Volume knob on the Soundbar clockwise to a higher volume setting. Clean and reseat the audio line-in plug. Test the Soundbar using another audio source (i.e. portable CD player). Clear any obstructions between the Soundbar and the user.