Question 1

the colors look washed out and weird over usb-c compared to hdmi on my dell s2722qc

Accepted Answer

DIAGNOSIS This is usually a color format or range mismatch. Different inputs can sometimes default to different settings, and your source device might be outputting a limited signal. FIX First, use the monitor's joystick to open the OSD. Go to Color > Input Color Format. Make sure it's set to 'RGB' for the USB-C input, not YPbPr. Then, go to Color > Color Space and set it to 'Standard' unless you have a specific need for sRGB or DCI-P3. Finally, on your computer (Mac or PC), check the display settings to ensure the output color depth and range are set to full or maximum. IF THAT DIDN'T WORK On a Mac, go to System Settings > Displays and click on the Color profile. Try selecting 'Dell S2722QC' if it appears, or 'Apple RGB'. On a Windows PC with an NVIDIA GPU, open the NVIDIA Control Panel, go to 'Change resolution', and ensure 'Output color format' is set to RGB and 'Output dynamic range' is set to Full. HEADS UP The USB-C connection carries both video and USB data, and some laptops apply different display profiles for different connection types. The monitor itself doesn't have different color calibration per input, so the fix is almost always in these software settings.

Question 2

is there a way to turn off the annoying white power led on the front? it's too bright in a dark room

Accepted Answer

DIAGNOSIS Yeah, that LED is pretty bright. There's no physical way to disable it, but you can make it less intrusive through a software setting. FIX Use the monitor's joystick control to open the On-Screen Display (OSD). Navigate to Others (the wrench icon) > LED Brightness. You can set it to Off, Bright, or Medium. Select 'Off'. This will turn off the white power LED on the front bezel when the monitor is in normal operation. IF THAT DIDN'T WORK If the setting doesn't stick, perform a monitor reset. In the same OSD menu under Others, find 'Factory Reset' and confirm. This will revert all settings but can clear any glitches preventing the LED setting from applying. HEADS UP Even when set to 'Off', the LED will still flash briefly when the monitor is powered on from a completely off state (not sleep). It will also turn on solid white if the monitor goes into standby and detects no signal, which is a useful indicator.

Question 3

dell s2722qc screen goes black for a second randomly while i'm working, then comes back

Accepted Answer

DIAGNOSIS That's a classic sign of the monitor losing sync with the signal, often due to a cable issue, a dodgy connection, or an aggressive power-saving feature. FIX First, check and reseat all your cables—power, HDMI/DP/USB-C—at both ends. The primary culprit is usually a slightly loose or failing video cable. Try a different, high-quality cable. Then, go into the monitor's OSD (joystick menu) and navigate to Display > Power Savings. Turn this setting OFF. This feature can sometimes be too sensitive and misinterpret a static image as no signal. IF THAT DIDN'T WORK The issue might be on the source side. Update your graphics card drivers. For NVIDIA users, also try disabling any adaptive sync/G-Sync Compatible settings in the NVIDIA Control Panel for this monitor, as the handshake can sometimes cause brief dropouts. HEADS UP If you're using a cheap HDMI switch, KVM, or dock, that's a likely point of failure. Try connecting the monitor directly to your computer to rule out intermediary devices.

Question 4

the usb-a ports on the side don't work for my keyboard or webcam, they have no power

Accepted Answer

DIAGNOSIS The downstream USB-A ports get their data and power from the upstream USB-B or USB-C connection. If that upstream link isn't active, the side ports are dead. FIX You must connect the monitor to your computer with either the included USB-B to USB-A cable (using the square USB-B port on the monitor) OR the USB-C cable for video. If using USB-B, connect the square end to the monitor's 'USB Upstream' port and the regular USB-A end to a USB port on your PC. The monitor must be on and the PC must be on for the hub to activate. IF THAT DIDN'T WORK If connected via USB-B, check your PC's Device Manager for any unknown devices or issues with USB controllers. Try a different USB-A port on your PC. If connected via USB-C, ensure the cable is fully seated and try the other USB-A ports on the monitor in case one is faulty. HEADS UP The USB-A ports only provide standard USB 3.2 Gen 1 power (5V/0.9A max). They're fine for peripherals but won't fast-charge a phone. Also, they only work when the monitor is on and connected to a source.

Question 5

how do i get 4k 60hz on this thing? it's stuck at 30hz over hdmi with my windows pc

Accepted Answer

DIAGNOSIS Your GPU or cable isn't negotiating the full HDMI 2.0 bandwidth required for 4K at 60Hz. This monitor needs HDMI 2.0 for that spec over its HDMI ports. FIX Go into Windows Display Settings > Advanced Display Settings > Display Adapter Properties for the monitor. Click 'List All Modes' and manually select a 3840 x 2160 resolution at 60Hz. If it's not listed, you need to check your GPU. For older NVIDIA cards, you may need to go into the NVIDIA Control Panel and change the output color format to YCbCr420 under 'Change resolution' > 'Use NVIDIA color settings' to enable 4K60 over HDMI 1.4 (which reduces chroma subsampling). IF THAT DIDN'T WORK Your HDMI cable is the prime suspect. You need a certified Premium High Speed HDMI cable (often labeled with an official certification label). Many older or cheap cables are only High Speed and max out at 4K30. Swap the cable. Also, try a different HDMI port on the monitor. HEADS UP For guaranteed 4K60 with full RGB color, use the USB-C input if your PC supports it, or use a DisplayPort cable. The DisplayPort on this monitor handles 4K60 without any special tweaks.

Question 6

the monitor makes a faint high-pitched buzzing or coil whine noise, especially on bright screens, is it defective?

Accepted Answer

DIAGNOSIS That's likely coil whine from the internal power supply or components. It's an annoying but common issue with many LCD monitors, not unique to this model, and often related to the backlight intensity. FIX First, try adjusting the monitor's brightness. Lower it from 100% to 70-80% and see if the noise diminishes. Often, the whine is most pronounced at maximum brightness. Also, ensure the monitor is plugged directly into a wall outlet, not a power strip or surge protector that might be introducing electrical noise. IF THAT DIDN'T WORK Try a different power cable if you have a compatible one. Sometimes the cable itself can be a factor. If the noise is truly unbearable and present from day one, it could be a component defect. Coil whine is generally not covered under warranty unless it's exceptionally loud, but contacting Dell support is an option. HEADS UP The noise can change or get louder based on what's on screen. A fully white webpage will often cause more whine than a dark movie scene. It's a physical characteristic, not a sign of imminent failure.

Question 7

dell s2722qc usb-c not charging my macbook, video works fine but battery just drains

Accepted Answer

DIAGNOSIS The USB-C port is delivering video data but not enough (or any) power. This monitor's USB-C port provides up to 65W of power delivery, but some devices are picky about the negotiation. FIX Start with the basics. Unplug the USB-C cable from both the monitor and your MacBook, wait 10 seconds, and reconnect firmly. Ensure you're using a certified Thunderbolt 3 or USB-C cable that supports power delivery and data, not a charge-only cable. Check your MacBook's System Information under Power to see if it recognizes a charger. IF THAT DIDN'T WORK The monitor might be in a weird power state. Unplug the monitor's power cord from the wall for a full minute to perform a hard reset. This often clears temporary glitches in the USB-C controller. Plug it back in and try again. HEADS UP The 65W is enough to charge a 13-inch MacBook Pro but will only slow-charge or maintain a 16-inch model under heavy load. It's normal for a high-power laptop to still drain slowly if you're pushing the CPU and GPU.

Question 8

my new dell s2722qc just shows 'no hdmi signal' even though the cable is plugged in to my laptop, what gives?

Accepted Answer

DIAGNOSIS The monitor is powered on but can't see the signal from your source. This is almost always a handshake issue or the monitor is looking on the wrong input. FIX First, use the monitor's physical joystick button on the back right to open the OSD. Navigate to the Input Source menu and manually select the correct input (HDMI 1 or HDMI 2). If it's already correct, power cycle everything: turn off the monitor, unplug the HDMI cable from both ends, restart your laptop, then reconnect everything and turn the monitor on last. IF THAT DIDN'T WORK Try a different HDMI cable, preferably a certified High-Speed one. The monitor's HDMI ports are version 2.0, and a subpar cable can fail at 4K. Also, check your laptop's display settings to ensure it's set to duplicate or extend, not just outputting to its internal screen. HEADS UP If you're using the USB-C port for video, it takes priority. Having a USB-C cable connected can sometimes cause the HDMI ports to be ignored until you manually switch back.

Question 9

the monitor keeps saying 'entering power save mode' and going black even though my pc is on and playing a video

Accepted Answer

DIAGNOSIS The monitor is not detecting a valid video signal from your graphics card. This is usually a cable, GPU setting, or power setting issue. FIX Replace your video cable. This is the most common fix. For 4K 60Hz, use a high-speed HDMI 2.0 cable or a certified USB-C cable. If using USB-C, ensure your GPU/USB-C port supports DisplayPort Alt Mode. IF THAT DIDN'T WORK Disable power saving on the monitor. Press the joystick. Go to Menu > Display > Power > Power Savings. Set it to Off. Also, check your computer's power settings. In Windows, set 'Turn off the display' and 'Put the computer to sleep' to Never. HEADS UP If you use an adapter (like HDMI to USB-C), it may not support the monitor's required EDID data. Use a direct cable connection. A faulty cable can also damage the monitor's input port.

Question 10

connected two computers, one usb-c and one hdmi, but the picture-in-picture mode is greyed out in the menu

Accepted Answer

DIAGNOSIS PIP/PBP (Picture-in-Picture/Picture-by-Picture) has specific requirements. Both input signals must be active and within supported resolutions. FIX First, ensure both sources are powered on and displaying an image. Then, check the input selection. Press the joystick. Go to Menu > Display > PIP/PBP. Select PIP Size and Position first. Choose Small or Medium. Then, go to PIP/PBP Input. Select your two inputs, like USB-C and HDMI 1. IF THAT DIDN'T WORK Lower the resolution on one or both inputs. PIP does not work if one source is 4K 60Hz and the other is also a high bandwidth signal. Try setting one computer to 1080p. HEADS UP PIP/PBP will disable HDR and may limit color depth. It is primarily for productivity, not gaming or color-critical work. The USB hub only works for the input designated as the primary source.

Question 11

how do i clean the screen on this thing? the manual says not to use glass cleaner and i'm scared to touch it

Accepted Answer

DIAGNOSIS Correct. The screen has a matte anti-glare coating. Harsh chemicals will permanently damage this coating, creating smears or dull spots. FIX Power off the monitor. Use a dry, soft microfiber cloth. Gently wipe the screen in one direction. For fingerprints, dampen a corner of the cloth with distilled water. Wring it out completely. Wipe gently, then immediately dry the area with the dry part of the cloth. IF THAT DIDN'T WORK For stubborn spots, use a monitor-specific cleaning solution. Spray it directly onto the microfiber cloth, never onto the screen. Ensure the solution is labeled safe for anti-glare or matte LCD screens. HEADS UP Never use paper towels, tissues, or rough cloth. Never use ammonia, alcohol, acetone, or window cleaner. Pressure can damage the panel. Always turn the monitor off so you can see the dirt clearly.

Question 12

the picture looks washed out and colors are bad when i connect my nintendo switch via hdmi

Accepted Answer

DIAGNOSIS The monitor's HDMI port is defaulting to the wrong color format or limited dynamic range for the console signal. FIX Change the HDMI version setting on the monitor. Press the joystick. Go to Menu > Display > HDMI Version. Set it to 2.0. Then, go to Menu > Color > Preset Modes. Set it to Standard or Multimedia. IF THAT DIDN'T WORK Check the console's output settings. On the Switch, go to System Settings > TV Output. Set RGB Range to Full Range. Also, ensure Resolution is set to Automatic, not 1080p forced. HEADS UP The monitor's Game and Cool/Warm color presets can distort colors for consoles. Stick with Standard or Multimedia preset for accurate color until you manually calibrate.

Question 13

my monitor makes a faint high-pitched whining or buzzing noise, seems to come from the back left

Accepted Answer

DIAGNOSIS That is coil whine from the power supply components. It's common with internal power supplies and is often related to the brightness setting. FIX Adjust the screen brightness. Press the joystick. Go to Menu > Brightness/Contrast. Change the brightness level up or down. Often, setting brightness to 75% or 25% reduces or eliminates the whine. IF THAT DIDN'T WORK The whine can be worse with certain refresh rates. Go to Menu > Display > Refresh Rate. Try switching between 60Hz and 59.94Hz if available. Also, ensure Adaptive-Sync is turned off in the Gaming menu. HEADS UP Coil whine is not a sign of impending failure, but it can be annoying. If the noise is loud and changes with on-screen movement, contact Dell support. It may indicate a faulty power board.

Question 14

the usb ports on the side of my monitor don't work when i'm connected with hdmi, is this broken?

Accepted Answer

DIAGNOSIS Not broken. The USB hub on the monitor requires a specific data connection to be active. It does not get power from HDMI alone. FIX You must connect the upstream USB-B cable. Use the included square USB-B to USB-A cable. Plug the USB-B end into the monitor's upstream port. Plug the USB-A end into your computer. This activates the side USB ports and the Ethernet port. IF THAT DIDN'T WORK Check the monitor's OSD menu. Press the joystick. Go to Menu > USB > USB Hub. Ensure it is set to On. Also, try a different USB-A port on your computer. HEADS UP The USB hub only works when the monitor is on. It will not charge devices or transfer data when the monitor is in standby or off.

Question 15

dell s2722qc won't wake up from sleep when my macbook is connected via usb-c, have to unplug and replug it

Accepted Answer

DIAGNOSIS The USB-C connection is not sending a proper wake signal. This is a common compatibility issue between macOS and this monitor's firmware. FIX Update the monitor's firmware. Download the latest firmware file from Dell's support site for the S2722QC. Follow using a Windows PC connected via USB-C or the upstream USB-B port. IF THAT DIDN'T WORK Change the USB-C Power Savings setting. Press the joystick. Go to Menu > Display > Power > USB-C Power Savings. Set it to Off. This keeps the USB controller more active. HEADS UP If you use a docking station between the Mac and monitor, the dock may be blocking the wake signal. Connect the monitor directly to test.

Question 16

my dell s2722qc screen just flickers black randomly for a second, especially when i move the mouse, what’s up with that?

Accepted Answer

DIAGNOSIS This is a known USB-C handshake issue with the integrated hub. The monitor is briefly losing the video signal. FIX First, disable the monitor's power saving features. Press the joystick button. Go to Menu > Display > Power > USB-C Power Savings. Set it to Off. If that doesn't work, update the monitor firmware using Dell Display Manager on your connected PC. IF THAT DIDN'T WORK The USB-C cable is likely the culprit. Use the cable that came with the monitor. If you lost it, buy a certified USB-C 3.2 Gen 2 cable that supports DisplayPort Alt Mode and 90W power delivery. HEADS UP Do not use cheap USB-C cables from unknown brands. They cause unstable power and signal delivery, which can damage the monitor's USB controller over time.

Dell S2722QC 27 inch 4K USB-C Monitor

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