Dell P1911, 469-0052 appendix Product Specific Problems, Universal Serial Bus USB Specific Problems

lines	•	Adjust Phase and Pixel Clock controls via OSD.
	•	Perform monitor self-test feature check and determine if these lines are also in self-test mode.
	•	Check for bent or broken pins in the video cable connector.
	•	Run the built-in diagnostics.

NOTE: When using DVI-D input, the Pixel Clock and Phase adjustments are not available.

Synchronization	Screen is	•	Reset the monitor to Factory Settings.
Problems	scrambled	•	Perform Auto Adjust via OSD.
	or appears	•	Adjust Phase and Pixel Clock controls via OSD.
	torn	•	Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.
		•	Check for bent or broken pins in the video cable connector.
		•	Restart the computer in the safe mode.
Safety Related	Visible signs	•	Do not perform any troubleshooting steps.
Issues	of smoke or	•	Contact Dell immediately.
	sparks
Intermittent	Monitor	•	Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.
Problems	malfunctions	•	Reset the monitor to Factory Settings.
	on & off	•	Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode.
Missing Color	Picture	•	Perform monitor self-test feature check.
	missing	•	Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.
	color	•	Check for bent or broken pins in the video cable connector.
Wrong Color	Picture color	•	Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending on the application.
	not good	•	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.
		•	Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.
		•	Run the built-in diagnostics.
Image retention	Faint	•	Use the Power Management feature to turn off the monitor at all times when not in use (for more information, see Power
from a static	shadow		Management Modes).
image left on the	from the	•	Alternatively, use a dynamically changing screensaver.
monitor for a long static image
period of time	displayed
	appears on
	the screen

Product Specific Problems

Specific Symptoms	What You Experience		Possible Solutions
Screen image is too small	Image is centered on screen,	•	Check the Scaling Ratio setting in Image Setting OSD
	but does not fill entire viewing	•	Reset the monitor to Factory Settings.
	area
Cannot adjust the monitor with	OSD does not appear on the	•	Turn off the monitor, unplug the power cord, plug back, and then turn on the monitor.
the buttons on the front panel	screen
No Input Signal when user	No picture, the LED light is	•	Check the signal source. Ensure the Computer is not in the power saving mode by
controls are pressed	green. When you press "+", "-"		moving the mouse or pressing any key on the keyboard.
	or "Menu" key, the message	•	Check to make sure Video Source to S-Video, Composite or Component is powered and
	"No S-Video input signal", or		playing video media.
	"No Composite input signal", or	•	Check whether the signal cable is plugged in properly. Re-plug the signal cable if
	"No Component input signal"		necessary.
	appears	•	Reset the computer or video player.
The picture does not fill the	The picture cannot fill the	•	Due to different video formats (aspect ratio) of DVDs, the monitor may display in full
entire screen.	height or width of the screen		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	What You Experience		Possible Solutions
USB interface is not working	USB peripherals are not	•	Check that your monitor is turned ON.
	working	•	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.
High Speed USB 2.0 interface is	High Speed USB 2.0	•	Check that your computer is USB 2.0-capable.
slow.	peripherals working slowly or	•	Some computers have both USB 2.0 and USB 1.1 ports. Ensure that the correct USB port
	not working at all		is used.
		•	Reconnect the upstream cable to your computer.
		•	Reconnect the USB peripherals (downstream connector).
		•	Reboot the computer.

Dell™ Soundbar Problems

Common Symptoms

What You Experience

Possible Solutions