Dell P2721Q User manual

Dell P2721Q Monitor
User’s Guide
Monitor model: P2721Q
Regulatory model: P2721Qf

NOTE: A NOTE indicates important information that helps you make better
use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of
data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal
injury, or death.
Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks
are of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
2020 - 09
Rev. A00

│ 3
Contents
About your monitor ...........................................6
Package contents ..................................................... 6
Product features....................................................... 8
Identifying parts and controls .................................... 9
Front view ............................................................................ 9
Back view............................................................................ 10
Side view ............................................................................ 10
Bottom view .........................................................................11
Monitor specifications...............................................12
Resolution specifications...........................................13
Supported video modes ........................................................ 13
Preset display modes ........................................................... 14
Electrical specifications........................................................ 14
Physical characteristics........................................................ 15
Environmental characteristics ............................................... 16
Power Management Modes................................................... 17
Pin assignments .................................................................. 18
Plug and play capability .............................................21
Universal Serial Bus (USB) interface...........................21
SuperSpeed USB 5Gbps (USB 3.2 Gen1) ................................ 21
USB 2.0............................................................................... 21
USB 3.2 Gen1 (5Gbps) downstream port ................................ 22
USB 2.0 downstream port..................................................... 23
LCD monitor quality and pixel policy .......................... 23

4 │
Maintenance guidelines ............................................ 24
Cleaning your monitor .......................................................... 24
Setting up the monitor .....................................25
Attaching the stand ................................................. 25
Connecting your monitor .......................................... 28
Connecting the HDMI cable (optional) ................................... 28
Connecting the DisplayPort (DisplayPort to DisplayPort) cable 29
Connecting the USB Type-C cable (C to C)............................. 29
Connecting the USB Type-C cable (C to A) ............................. 30
Organizing your cables ............................................. 30
Removing the monitor stand ......................................31
VESA wall mounting (optional).................................. 32
Operating your monitor ....................................33
Power on the monitor............................................... 33
Using the back panel controls ................................... 33
Back panel button ................................................................ 35
Using the On-Screen Display (OSD) menu.................. 36
Accessing the menu system .................................................. 36
OSD warning message.......................................................... 48
Setting the maximum resolution................................ 52
Using the tilt, swivel, and vertical extension ............... 53
Tilt, swivel........................................................................... 53
Vertical extension ................................................................ 53
Rotating the monitor................................................ 54
Rotate clockwise.................................................................. 54
Rotate counterclockwise ...................................................... 55
Adjusting the rotation display settings of your system. 56

│ 5
Troubleshooting ...............................................57
Self-test ................................................................. 57
Built-in diagnostics .................................................. 59
Common problems ................................................... 60
Product specific problems ........................................ 63
Universal Serial Bus (USB) specific problems ............. 65
Appendix .........................................................66
FCC notices (U.S. only) and other regulatory
information ............................................................. 66
Contact Dell ............................................................ 66

6 │About your monitor
About your monitor
Package contents
Your monitor ships with the components shown in the table below. If any component is
missing, contact Dell technical support. For more information, see Contact Dell.
NOTE: Some items may be optional and may not ship with your monitor.
Some features may not be available in certain countries.
NOTE: If you are attaching a stand that you purchased from any other
source, follow the set up instructions that were included with the stand.
Display
Stand riser
Stand base

About your monitor │7
Power cable
(varies by country)
DisplayPort cable
(DisplayPort to DisplayPort)
*USB Type-C®to Type-C
Gen1 cable (1.8m)
USB Type-C to Type-A
cable (1.8 m)
• Quick Setup Guide
• Safety, Environmental,
and Regulatory Information
• Velcro Strap
NOTE: *USB Type-C®and USB-C®are registered trademarks of USB
Implementers Forum.

8 │About your monitor
Product features
The Dell P2721Q monitor has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD) and LED backlight. The monitor features include:
• 68.47 cm (27.0 in.) viewable area (measured diagonally).
3840 x 2160 (16:9) resolution, plus full-screen support for lower resolutions.
• Wide viewing angle to allow viewing from a sitting or standing position.
• Color gamut of 99% sRGB.
• Digital connectivity with Type-C, DisplayPort and HDMI.
• Tilt, swivel, height, and rotate adjustment capabilities.
• Removable stand and Video Electronics Standards Association (VESA™)
100 mm mounting holes for flexible mounting solutions.
• Equipped with one Type-C upstream port and four USB downstream ports.
• Plug and play capability if supported by your system.
• On-Screen Display (OSD) adjustments for easy set-up and screen
optimization.
• Power and OSD buttons lock.
• Security lock slot.
• Stand lock.
• 0.5 W standby power when in sleep mode.
• Optimize eye comfort with a flicker-free screen.
• Single USB Type-C to supply power (PD 65 W) to compatible notebook while
receiving video signal.
WARNING: The possible long-term effects of blue light emission from the
monitor may cause damage to the eyes, including eye fatigue, digital eye
strain, and so on. ComfortView feature is designed to reduce the amount
of blue light emitted from the monitor to optimize eye comfort.

About your monitor │9
Identifying parts and controls
Front view
Back view
23
Label Description
1LED indicator
2Power On/Off button
3 Joystick

10 │About your monitor
Back view
5
1
2
3
4
Back view with monitor stand
Label Description Use
1
VESA mounting holes (100 mm
x 100 mm - behind attached
VESA Cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x
100 mm).
2Regulatory label Lists the regulatory approvals.
3Stand release button Releases stand from the monitor.
4Barcode, serial number, and
Service Tag label
Refer to this label if you need to
contact Dell for technical support.
5Cable-management slot Use to organize cables by inserting
them through the slot.
Side view

About your monitor │11
Bottom view
1 2 43 5 6 87
Bottom view without monitor stand
Label Description Use
1Security lock slot Secures the monitor with security lock (security lock
not included).
2Power connector Connect the power cable (shipped with your monitor).
3Stand lock To lock the stand to the monitor using a M3 x 6 mm
screw (screw not included).
4HDMI port Connect your computer with the HDMI 2.0 cable.
5DisplayPort Connect your computer with the DisplayPort cable
(shipped with your monitor).
6USB Type-C
Connect to your computer using the USB Type-C
cable (C to C).
The alternate mode with DP 1.2 support the maximum
resolution of 3840 X 2160 at 60 Hz, PD 20 V/3.25 A,
15 V/3 A, 9 V/3 A, 5 V/3 A.
NOTE: USB Type-C cable (C to C) only support
USB 2.0, USB C to A cable can suport USB 3.2 Gen1
(5Gbps).
7USB 2.0 downstream
port x 2
Connect your USB device.
NOTE: To use this port, you must connect the USB
cable (shipped with your monitor) to the USB-
upstream port on the monitor and to your computer.
8
SuperSpeed USB
5Gbps (USB 3.2 Gen1)
downstream port x 2
Connect your USB device.
NOTE: To use this port, you must connect the USB
cable (shipped with your monitor) to the USB-
upstream port on the monitor and to your computer.

12 │About your monitor
Monitor specifications
Model P2721Q
Screen type UHD TFT LCD
Panel technology In-Plane Switching Technology
Aspect ratio 16:9
Viewable image
Diagonal
Width (active area)
Height (active area)
Total area
684.66 mm (26.96 in.)
596.74 mm (23.49 in.)
335.66 mm (13.21 in.)
200301.75 mm² (310.30 in.²)
Pixel pitch 0.1554 mm x 0.1554 mm
Pixel per inch (PPI) 163
Viewing angle 178° (vertical) typical
178° (horizontal) typical
Luminance output 350 cd/m² (typical)
Contrast ratio 1,000 to 1 (typical)
Faceplate coating AG type, 3H hard coating, Haze 25
Backlight White LED edgelight system
Response time
(Gray to Gray)
5 ms (Fast)
8 ms (Normal)
Color depth 1.07 Billion colors
Color gamut sRGB 99%
Built-in devices N/A
Connectivity • 1 x HDMI port version 2.0
• 1 x DisplayPort version 1.2
• 1 x USB Type-C (Alternate mode with DisplayPort
1.2, USB 3.2 Gen1 (5Gbps) upstream port, Power
Delivery PD up to 65 W)
• 2 x USB 2.0 downstream ports
• 2 x SuperSpeed USB 5Gbps (USB 3.2 Gen1)
downstream ports

About your monitor │13
Border width (edge of
monitor to active area)
7.4 mm (Top)
7.4 mm (Left/Right)
17.7 mm (Bottom)
Adjustability
Height adjustable
stand Tilt
Swivel
Pivot
150 mm
-5° to 21°
-45° to 45°
-90° to 90°
Dell Display Manager
compatibility
Easy Arrange and other key features
Security Security lock slot (cable lock sold separately)
Resolution specifications
Model P2721Q
Horizontal scan range 15 kHz to 135 kHz (automatic)
Vertical scan range 24 Hz to 86 Hz (automatic)
Maximum preset resolution 3840 x 2160 at 60 Hz
Supported video modes
Model P2721Q
Video display capabilities
(HDMI & DP & USB
Type-C alternate mode)
480i, 480p, 576i, 576p, 720p, 1080i, 1080p,2160p

14 │About your monitor
Preset display modes
Display mode Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
Pixel clock
(MHz)
Sync polarity
(Horizontal/
Vertical)
VESA, 720 x 400 31.5 70.1 28.3 -/+
VESA, 640 x 480 31.5 59.9 25.2 -/-
VESA, 640 x 480 37.5 75 31.5 -/-
VESA, 800 x 600 37.9 60.3 40 +/+
VESA, 800 x 600 46.9 75 49.5 +/+
VESA, 1024 x 768 48.4 60 65 -/-
VESA, 1024 x 768 60 75 78.8 +/+
VESA, 1152 x 864 67.5 75 108 +/+
VESA, 1280 x 1024 64 60 108 +/+
VESA, 1280 x 1024 80 75 135 +/+
VESA, 1600 x 900 60 60 108 +/+
VESA, 1920 x 1080 67.5 60 148.5 +/+
VESA, 2048 x 1280 78.9 59.9 174.3 +/-
VESA, 2560 x 1440 88.8 60 241.5 +/-
VESA, 3840 x 2160 67.5 30 297 +/-
VESA, 3840 x 2160 135 60 594 +/-
VESA, 3840 x 2160 133.3 60 533.3 +/-
Electrical specifications
Model P2721Q
Video input signals • USB Type-C /DisplayPort, 600 mV for each differential
line, 100 Ω input impedance per differential pair
• HDMI 2.0, 600 mV for each differential line, 100 Ω input
impedance per differential pair
• DisplayPort 1.2, 600 mV for each differential line, 100 Ω
input impedance per differential pair
AC input voltage/
frequency/current 100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 2.5 A
Inrush current • 120 V: 30 A (Max.) at 0°C (cold start)
• 240 V: 60 A (Max.) at 0°C (cold start)

About your monitor │15
Physical characteristics
Model P2721Q
Signal cable type • DP to DP 1.8 m cable
• USB Type-C (C to C) 1.8 m cable
• USB Type-C (C to A) 1.8 m cable
NOTE: Dell monitors are designed to work optimally with the video cables that
are shipped with your monitor. As Dell does not have control over the different
cable suppliers in the market, the type of material, connector and process used
to manufacture these cables, Dell does not guarantee video performance on
cables that are not shipped with your Dell monitor.
Dimensions (with stand)
Height (extended) 535.2 mm (21.07 in.)
Height (compressed) 385.2 mm (15.17 in.)
Width 611.6 mm (24.08 in.)
Depth 185.0 mm (7.28 in.)
Dimensions (without stand)
Height 360.7 mm (14.20 in.)
Width 611.6 mm (24.08 in.)
Depth 52.1 mm (2.05 in.)
Stand dimensions
Height (extended) 428.3 mm (16.86 in.)
Height (compressed) 381.5 mm (15.02 in.)
Width 268.0 mm (10.55 in.)
Depth 185.0 mm (7.28 in.)
Weight
Weight with packaging 9.7 kg (21.49 lb)
Weight with stand assembly
and cables
7.2 kg (15.96 lb)
Weight without stand
assembly (For wall mount or
VESA mount considerations
- no cables)
5.1 kg (11.20 lb)
Weight of stand assembly 1.8 kg (3.95 lb)
Middle frame gloss 2-4
Front bezel gloss 2-4

16 │About your monitor
Environmental characteristics
Model P2721Q
Compliant standards
• ENERGY STAR certified monitor
• EPEAT registered where applicable. EPEAT registration varies by country.
See www.epeat.net for registration status by country.
• RoHS-compliant
• TCO certified displays
• BFR/PVC free monitor (excluding external cables)
• Meets NFPA 99 leakage current requirements.
• Arsenic-free glass and Mercury-free for the panel only
Temperature
Operating 0°C to 40°C (32°F to 104°F)
Non-operating
Storage / Shipping
-20°C to 60°C (-4°F to 140°F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating
Storage / Shipping
5 % to 90% (non-condensing)
Altitude
Operating 5,000 m (16,404 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)
Thermal dissipation • 470.6 BTU/hour (maximum)
• 121.4 BTU/hour (typical)

About your monitor │17
Power Management Modes
If you have VESA's DPM™ compliance display card or software installed on your
computer, the monitor can automatically reduce its power consumption when not
in use. This is referred to as Standby Mode*. If the computer detects input from
the keyboard, mouse, or other input devices, the monitor automatically resumes to
function. The following table shows the power consumption and signaling of this
automatic power saving feature.
VESA Modes Horizontal
sync
Vertical
sync
Video Power
indicator
Power
consumption
Normal
operation Active Active Active White 138 W (maximum)*
35.6 W (typical)
Active-off
mode Inactive Inactive Blank Glowing white Less than 0.5 W
Switch-off - - - Off Less than 0.3 W
Power Consumption PON 22 W
Total Energy Consumption (TEC) 66.7 kWh
*Maximum power consumption with max luminance, and USB active.
This document is informational only and reflects laboratory performance. Your product
may perform differently, depending on the software, components and peripherals you
ordered and shall have no obligation to update such information. Accordingly, the
customer should not rely upon this information in making decisions about electrical
tolerances or otherwise. No warranty as to accuracy or completeness is expressed
or implied.
NOTE: This monitor is ENERGY STAR certified.
This product qualifies for ENERGY STAR in the factory default settings
which can be restored by “Factory Reset” function in the OSD menu.
Changing the factory default settings or enabling other features may
increase power consumption that could exceed the ENERGY STAR
specified limit.
NOTE:
PON : Power consumption of On Mode as defined in Energy Star 8.0 version.
TEC: Total energy consumption in kWh as defined in Energy Star 8.0 version.

18 │About your monitor
Pin assignments
DisplayPort connector
Pin
number
20-pin side of the connected
signal cable
1ML3 (n)
2GND
3ML3 (p)
4ML2 (n)
5GND
6ML2 (p)
7ML1 (n)
8GND
9ML1 (p)
10 ML0 (n)
11 GND
12 ML0 (p)
13 GND
14 GND
15 AUX (p)
16 GND
17 AUX (n)
18 Hot Plug Detect
19 Re-PWR
20 +3.3 V DP_PWR

About your monitor │19
HDMI connector
Pin
number
19-pin side of the connected
signal cable
1TMDS DATA 2+
2TMDS DATA 2 SHIELD
3TMDS DATA 2-
4TMDS DATA 1+
5TMDS DATA 1 SHIELD
6TMDS DATA 1-
7TMDS DATA 0+
8TMDS DATA 0 SHIELD
9TMDS DATA 0-
10 TMDS CLOCK+
11 TMDS CLOCK SHIELD
12 TMDS CLOCK-
13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 DDC/CEC Ground
18 +5 V POWER
19 HOT PLUG DETECT

20 │About your monitor
USB Type-C port
Pin Signal Pin Signal
A1 GND B12 GND
A2 SSTXp1 B11 SSTXp1
A3 SSTXn1 B10 SSTXn1
A4 VBUS B9 VBUS
A5 CC1 B8 SSU2
A6 Dp1 B7 Dn1
A7 Dn1 B6 Dp1
A8 SBU1 B5 CC2
A9 VBUS B4 VBUS
A10 SSRXn2 B3 SSRXn2
A11 SSRXp2 B2 SSRXp2
A12 GND B1 GND