Dell P2722H User Manual

72 | Troubleshooting
Universal Serial Bus (USB) specific problems
Specific
Symptoms
What You
Experience
Possible Solutions
USB interface is
not working
USB peripherals
are not working
•Check that your display is turned ON.
•Ensure USB Selection is set correctly in the USB
menu.
•Reconnect the upstream cable to your
computer.
•Reconnect the USB peripherals (downstream
connector).
•Turn o the monitor and turn it on again.
•Reboot the computer.
•Some USB devices like external portable HDD
require higher electric current; connect the
device directly to the computer system.
•Certain USB devices such as portable hard
drives require higher power source; connect the
drive to the computer directly.
•Disconnect one upstream USB cable when using
two upstream connections.
SuperSpeed
USB 3.2 Gen2
interface is
slow.
SuperSpeed
USB 3.2 Gen2
peripherals
working slowly
or not working
at all
•Check that your computer is USB 3.0-capable.
•Some computers have USB 3.0, 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.
Wireless USB
peripherals stop
working when a
USB 3.0 device
is plugged in
Wireless USB
peripherals
responding
slowly or only
working as
the distance
between itself
and its receiver
decreases
•Increase the distance between the USB 3.0
peripherals and the wireless USB receiver.
•Position your wireless USB receiver as close as
possible to the wireless USB peripherals.
•Use a USB-extender cable to position the
wireless USB receiver as far away as possible
from the USB 3.0 port.
USB is not
working
No USB
functionalities
Refer to input source and USB pairing table.

Dell P2722H Specifications

General

HDMI version	1.4
Headphone out	No
USB hub version	2.0 / 3.2 Gen 1 (3.1 Gen 1)
Built-in USB hub	Yes
DisplayPort version	1.2
USB upstream port type	USB Type-B
Number of upstream ports	1
USB Type-A downstream ports quantity	4
Pivot angle	-90 - 90 °
LED indicators	Power
Tilt angle range	-5 - 21 °
Height adjustment	150 mm
Panel mounting interface	100 x 100 mm
Color depth	6 bit
Pixel pitch	0.2745 x 0.2745 mm
Screen shape	Flat
Pixel density	102 ppi
Response time	8 ms
Backlight type	LED
Display diagonal	27 \
Anti-glare screen	Always gives an optimal view, even in direct sunlight.
Display technology	LCD
Native aspect ratio	16:9
Vertical scan range	50 - 76 Hz
Maximum refresh rate	60 Hz
Response time (fast)	5 ms
Horizontal scan range	30 - 83 kHz
Supported video modes	480p, 576p, 720p, 1080i, 1080p
Viewable size diagonal	686 mm
Viewable size, vertical	336.31 mm
sRGB coverage (typical)	99 %
Contrast ratio (typical)	1000:1
Display number of colors	16.7 million colors
Display diagonal (metric)	68.6 cm
Viewable size, horizontal	597.89 mm
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	1920 x 1080 (HD 1080)
NVIDIA G-SYNC	-
AC input voltage	100 - 240 V
Power supply type	Internal
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	55 W
Power consumption (standby)	0.2 W
Power consumption (typical)	15 W
Operating altitude	0 - 5000 m
Non-operating altitude	0 - 12192 m
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %
Doesn't contain	PVC/BFR
Sustainability certificates	ENERGY STAR, EPEAT Gold, RoHS
Feet color	Silver
Product color	Black
Heavy metals free	Hg (mercury)
Market positioning	Business
Cables included	AC, DisplayPort, USB
Harmonized System (HS) code	85285210
Ethernet LAN (RJ-45) ports	0

Weight and Dimensions

Bezel width (top)	5.99 mm
Bezel width (side)	6.01 mm
Depth (with stand)	190.1 mm
Width (with stand)	609.9 mm
Height (with stand)	384.15 mm
Weight (with stand)	6770 g
Bezel width (bottom)	17.29 mm
Depth (without stand)	52.15 mm
Height (without stand)	359.6 mm
Weight (without stand)	4380 g