Question 1

all the usb ports on the side of the monitor stopped working after i updated my computer.

Accepted Answer

DIAGNOSIS The USB hub in the monitor is powered and controlled by the upstream USB-B connection from your computer. An OS or driver update likely reset your USB power management settings or the hub driver itself. FIX Let's retrace the physical connections first. 1) Ensure the square-shaped USB-B cable (the one that came with the monitor) is firmly connected from the monitor's 'USB Upstream' port to a working USB port on your computer. 2) The monitor must be powered on for the hub to work. 3) Check the OSD: Press the joystick, go to the 'System Setup' menu (the wrench icon), then 'USB Hub'. Make sure it's set to 'On'. Now, on your Windows PC, go to Device Manager. Look under 'Universal Serial Bus controllers'. Right-click and 'Scan for hardware changes'. If you see an 'Unknown device' or a device with a yellow warning, right-click it and select 'Update driver', then 'Search automatically for drivers'. IF THAT DIDN'T WORK You may need to manually reset the USB hub power. Unplug the USB-B cable from your computer, then unplug the monitor's power cord from the wall. Wait 60 seconds. Plug the monitor power back in, let it boot, then reconnect the USB-B cable to your PC. This performs a cold restart of the hub. HEADS UP The USB hub shares bandwidth. If you're connecting high-bandwidth devices like external SSDs or multiple webcams, try using fewer ports or connect those demanding devices directly to your computer to avoid overloading the hub.

Question 2

the screen has a weird yellow or red tint on one side but not the other, especially on gray backgrounds.

Accepted Answer

DIAGNOSIS That's called color uniformity or tinting, often visible as 'backlight bleed' or 'IPS glow' that isn't perfectly even. On a factory-calibrated monitor like the ProArt, it's more noticeable, but some degree is inherent to IPS panels. A severe tint on one side, however, can indicate panel stress. FIX First, run a simple test. Display a full-screen mid-gray image (you can find these online). In a dim room, look at the screen from a normal viewing distance, dead center. If the tint is very slight and only visible from extreme angles, that's typical IPS glow. If it's pronounced straight-on, try gently massaging the affected corner or edge of the bezel with your thumb. Sometimes the panel can be slightly pinched by the frame during assembly or shipping. Apply light pressure on the bezel, not the screen itself. IF THAT DIDN'T WORK Check if the issue changes when you adjust the monitor's tilt or swivel. If it does, it's likely pressure-related. Loosen the stand's tilt tension (if adjustable) so the monitor isn't fighting its own position. Also, ensure the monitor isn't overheating; poor ventilation can affect performance. HEADS UP Color uniformity is a key spec for pro monitors. If the tint is strong enough to distract you during color-graded work, and it doesn't improve, use ASUS's warranty. They have tighter tolerances for ProArt models, and a clearly uneven panel should be considered for replacement, especially early in ownership.

Question 3

the joystick controller on the back feels weird and the menu sometimes pops up randomly, is it broken?

Accepted Answer

DIAGNOSIS The 5-way joystick/navigation button can get stuck in a slightly depressed position from dust or debris, or its internal microswitch can become overly sensitive, causing phantom presses. FIX First, let's try a deep clean. Power off and unplug the monitor. Take a can of compressed air and, with the nozzle a few inches away, give a few short bursts directly at the base of the joystick. Tilt the monitor to help debris fall out. Next, use a cotton swab very lightly moistened with >90% isopropyl alcohol to wipe around the joystick's rim. Don't force liquid inside. Let it dry completely. This often frees up any stickiness. Plug it back in and test. When using it, press directly in and release fully—don't rock it side-to-side while pressing. IF THAT DIDN'T WORK The issue might be electrical. Check if the phantom menu pops ups are tied to a specific event, like turning on a desk lamp or another appliance on the same circuit. If so, it's interference. Try plugging the monitor into a different outlet on a separate circuit if possible. HEADS UP If the joystick is physically damaged or the random presses continue after cleaning, you'll need to contact ASUS for service. The joystick is part of the main control board, so don't try to disassemble the monitor yourself, as you'll void the warranty and risk damaging the panel.

Question 4

i'm trying to use the usb-c port to connect my macbook but it's not charging or showing a picture.

Accepted Answer

DIAGNOSIS The USB-C port on the PA278QV is for video, data, and power delivery (up to 65W), but it needs to be the only connection and your MacBook might need a nudge to recognize it as a power source. FIX First, use the USB-C cable that came with the monitor or a certified high-quality Thunderbolt 3/4 cable that supports DisplayPort Alt Mode and 65W+ PD. 1) Connect the cable to your powered-on monitor first. 2) Then connect it to your MacBook. The monitor should wake up and switch to the USB-C input. If it doesn't, use the monitor's joystick to manually select 'USB-C' as the input source. For charging, make sure your MacBook is awake and not in sleep mode when you connect it. Sometimes you need to unlock the screen for the handshake to complete. IF THAT DIDN'T WORK Your MacBook's power management might be interfering. Go to Apple Menu > System Settings > Battery. Check that settings aren't preventing charging. Also, try an SMC reset on your Intel Mac, or a shut down and restart on Apple Silicon Macs. As a test, connect the monitor to AC power with a different device, like a modern iPad, to verify the USB-C port is working. HEADS UP The 65W charging is enough for most 13-inch and some 15-inch MacBooks under load, but larger 16-inch Pros may still slowly drain under heavy use. That's normal. For a guaranteed charge, keep your MacBook's original charger handy.

Question 5

how do i clean the screen on this thing? the microfiber cloth that came with it just smears the fingerprints.

Accepted Answer

DIAGNOSIS Smearing happens when you're using a dry cloth on oily fingerprints or when the cloth itself has picked up dust and oils. The ProArt has a standard anti-glare matte coating that you don't want to damage. FIX Here's the shop-approved method. 1) Unplug the monitor and let it cool. 2) Use a dry, clean, new microfiber cloth (like for glasses or camera lenses) to gently wipe off any loose dust. 3) For smudges, dampen a second clean microfiber cloth with distilled water only. Wring it out so it's barely damp, not wet. 4) Wipe the screen gently in a circular motion. 5) Immediately use the dry side of your first cloth to buff the area dry before the water evaporates and leaves spots. IF THAT DIDN'T WORK For stubborn spots, you can use a 50/50 mix of distilled white vinegar and distilled water. The mild acidity can cut through oils. Apply the same way: a barely-damp cloth, followed immediately by a dry buff. Never spray liquid directly onto the screen. HEADS UP Never use window cleaners, alcohol, ammonia, or abrasive cloths (paper towels, old t-shirts). These will permanently damage the anti-glare coating, leaving shiny patches or haze. The goal is to use the least aggressive cleaner that gets the job done.

Question 6

the monitor makes a faint but annoying high-pitched buzzing or whining sound, is it defective?

Accepted Answer

DIAGNOSIS That's coil whine, and it's a common electronic phenomenon, not necessarily a defect. It's often caused by the power supply components vibrating at a high frequency, which can change based on the monitor's brightness or the content displayed. FIX First, try to isolate the cause. Turn the brightness down to 50% or below using the OSD joystick. Does the noise change or go away? Display a completely white screen (like a blank document), then a completely black screen. The pitch often changes with the power load. If adjusting the brightness minimizes it to a tolerable level, that's your simplest fix. Also, ensure the power cable is firmly plugged into both the monitor and a grounded wall outlet, not a power strip, as unstable voltage can exacerbate whine. IF THAT DIDN'T WORK The whine might be interacting with your environment. Try moving any power bricks, wireless routers, or other electronics further away from the monitor. Sometimes electromagnetic interference from other devices can make the noise more pronounced. HEADS UP Coil whine is generally harmless and doesn't affect performance or longevity, but it can be a deal-breaker for a quiet workspace. If it's loud and persistent right out of the box, contact ASUS support while you're still within the return or warranty period to discuss options.

Question 7

the colors on my pa278qv look way off and washed out compared to my old monitor, did i get a bad panel?

Accepted Answer

DIAGNOSIS You probably didn't get a bad panel. The ProArt comes factory-calibrated, but your computer's graphics driver might be overriding those settings with a default color profile or incorrect output range. FIX First, let's check the monitor's own settings. Use the joystick to open the OSD. Go to the 'Color' menu. Ensure the 'Color Temperature' is set to '6500K' and the 'Gamma' is set to '2.2'. Most importantly, make sure 'Adaptive-Sync' is Off for color-critical work, as it can affect gamma. Next, on your Windows PC, right-click the desktop and select 'Display settings'. Click 'Advanced display' and then 'Display adapter properties'. In the new window, go to the 'Color Management' tab. Click 'Color Management...', then the 'Advanced' tab, and ensure 'Windows Color System' is the default. Don't load any .icc profiles here unless you've created one yourself. IF THAT DIDN'T WORK The issue is likely the output dynamic range from your GPU. In your NVIDIA Control Panel or AMD Radeon Settings, under 'Display' > 'Change resolution', look for an option like 'Output dynamic range' and set it to 'Full' instead of 'Limited'. HEADS UP The ProArt's 'Splendid' presets (like sRGB, Rec.709) lock certain color settings. If you need to adjust brightness or color space, use the 'User Mode' preset for full control.

Question 8

my new asus proart monitor is stuck on a blue screen that says ‘no signal’ even though my pc is on and plugged in, what gives?

Accepted Answer

DIAGNOSIS The monitor is powered on but isn't receiving a valid video signal from your computer. The most common culprit is the input source setting on the monitor itself or a loose cable connection. FIX First, let's check the physical connection. Power everything off. Unplug the video cable (DisplayPort or HDMI) from both the monitor and your PC, then firmly reseat it at both ends. Make sure you're using a certified cable. Power your PC on first, then the monitor. If the blue screen persists, grab the monitor's joystick control on the back. Press it in to open the OSD menu. Navigate up or down to the 'Input Select' icon and press the joystick in. Cycle through the options (DisplayPort, HDMI 1, HDMI 2) until you see your desktop. IF THAT DIDN'T WORK The issue might be on the PC's end. Try a different video output port on your graphics card. If you have another monitor or TV, test that cable and port to rule out a PC graphics output problem. You can also try a different type of cable (e.g., switch from HDMI to DisplayPort) if your hardware supports it. HEADS UP If you're using a laptop dock or a KVM switch, those can sometimes cause handshake issues. Try connecting the monitor directly to your computer to bypass any intermediate devices.

Question 9

i connected my macbook pro via usb-c, but the monitor isn't charging my laptop and the usb hub on the monitor doesn't work.

Accepted Answer

DIAGNOSIS The USB-C port on the PA278QV provides data and video (DisplayPort Alt Mode) but does NOT provide Power Delivery (PD) for charging connected devices. The downstream USB-A ports on the hub are only active when the monitor is connected to a computer via its upstream USB-B port. FIX For charging: You must use your MacBook's original power adapter separately. The monitor's USB-C cable only carries video and data. For the USB hub: Connect the included square USB-B to USB-A cable from the monitor's 'USB Upstream' port to a USB port on your computer. Once this upstream connection is made, the two USB-A ports and the audio jack on the monitor become active, functioning as a hub. IF THAT DIDN'T WORK Ensure you are using a fully functional USB-C cable that supports data and video. Try a different cable. On your Mac, check System Preferences > Displays to ensure the monitor is recognized. For the USB hub, try a different USB port on your computer for the upstream cable, and ensure the monitor is powered on. HEADS UP This is a specification limit, not a fault. The PA278QV's USB-C port delivers up to 65W of power *to the monitor* from a compatible laptop charger, but it does *not* send power out to charge a laptop. Always check the upstream USB-B connection for hub functionality.

Question 10

the quickfit (red grid overlay) function on my monitor is stuck on and i can't get it to turn off no matter what button i press.

Accepted Answer

DIAGNOSIS The QuickFit virtual scale/alignment grid is activated and locked on. This occurs when the dedicated QuickFit button on the monitor's rear bezel is stuck in a pressed position or the OSD setting is corrupted. FIX First, locate the physical QuickFit button. It is a separate button on the rear bezel, below the joystick, with an icon of a rectangle with a crosshair. Press it firmly once to toggle the QuickFit overlay off. If it does not respond, press and hold it for 5 seconds. This should force the function to cycle and disable. IF THAT DIDN'T WORK Perform a factory reset on the monitor. Use the joystick: navigate to Menu > System > All Reset > Yes. This will clear all user settings, including any corrupted toggle for QuickFit, and return the monitor to its default state. The QuickFit overlay will be off by default. HEADS UP The QuickFit function is purely an on-screen overlay and does not affect the actual video signal or saved files. It is only visible on the monitor itself. If the physical button is mechanically stuck, you may need to have the monitor serviced to prevent it from randomly activating again.

Question 11

the displayport connection on my proart keeps randomly flickering to black for a second, especially when i have a video playing.

Accepted Answer

DIAGNOSIS Intermittent signal loss, often caused by an insufficient quality DisplayPort cable, a marginal connection, or an incompatibility with Adaptive-Sync at certain refresh rates. FIX Replace your DisplayPort cable. Ensure it is a certified VESA DisplayPort 1.2 or later cable, preferably a short (1-2 meter), well-constructed cable. Cheap or long cables cannot reliably handle the WQHD (2560x1440) signal at 75Hz. Second, disable Adaptive-Sync/FreeSync in the monitor's OSD. Navigate via the joystick to GamePlus > Adaptive-Sync and set it to 'Off'. This stabilizes the signal timing. IF THAT DIDN'T WORK Update your graphics card drivers. Then, in your GPU control panel, manually set a fixed refresh rate. For NVIDIA: Set to 75Hz. For AMD: Set to 75Hz and ensure the 'Preferred color depth' is not set above 8 bpc for testing. Also, try a different DisplayPort port on both the monitor and your graphics card. HEADS UP The PA278QV uses a DisplayPort 1.2 interface. If your source is DP 1.3/1.4, some cables can cause handshake issues. Using a 'DP 1.2 certified' cable is more reliable here than a newer, uncertified DP 1.4 cable. Also, ensure the cable is fully clicked into the port on both ends.

Question 12

how do i properly clean the matte screen on this asus proart? i'm worried about damaging the anti-glare coating.

Accepted Answer

DIAGNOSIS Standard glass cleaners or abrasive cloths can permanently damage the monitor's matte anti-glare coating, causing smears or dull spots. FIX Use the correct materials only. First, power off the monitor and let the screen cool. Use a dry, soft microfiber cloth (like for eyeglasses or cameras) to gently wipe away dust. For fingerprints or smudges, lightly dampen a second microfiber cloth with distilled water or a monitor-specific screen cleaner. Never spray liquid directly onto the screen. Gently wipe the damp area, then immediately dry it with the dry microfiber cloth using light, circular motions. IF THAT DIDN'T WORK For stubborn marks, use a 50/50 mix of distilled white vinegar and distilled water on the cloth, not the screen. The mild acidity can break down oils without harming the coating. Test on a small corner first. Avoid all products containing ammonia, alcohol, acetone, or ethyl alcohol. HEADS UP The anti-glare coating is delicate. Never use paper towels, tissues, coarse cloths, or window cleaner. Do not apply pressure; let the cloth do the work. Persistent streaks after cleaning usually indicate a damaged coating, not dirt.

Question 13

the joystick control on the back of my pa278qv is super unresponsive, have to push really hard or at a weird angle for it to register.

Accepted Answer

DIAGNOSIS The 5-way joystick/navigation button is misaligned or has debris lodged around its base, preventing clean directional presses. This is a physical, not software, issue. FIX Power off and unplug the monitor. Inspect the joystick. Use a can of compressed air to blow firmly into the gap around the joystick's base to dislodge any dust or debris. Do not insert any tools. After cleaning, plug the monitor back in. Test the joystick with deliberate, centered presses: push directly in for each cardinal direction (up, down, left, right) and straight in for 'select'. IF THAT DIDN'T WORK The issue may be internal wear. You can temporarily bypass the joystick for most functions. Download and install the ASUS DisplayWidget Lite software for your computer. This allows you to control monitor settings like brightness, input, and ProArt presets directly from your desktop, using your mouse. HEADS UP Avoid using excessive force on the joystick, as this can worsen internal damage. If the joystick fails completely, you will need to use the software or seek repair for physical button replacement, as there are no other physical controls on the monitor.

Question 14

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

Accepted Answer

DIAGNOSIS This is coil whine from the monitor's internal power supply or voltage regulation circuits. It is often related to the monitor's brightness/backlight level or the connected video signal's refresh rate. FIX Adjust the monitor's brightness setting. The whine is often most pronounced at specific brightness levels, typically between 40% and 70%. Incrementally adjust the brightness up or down from your current setting until the noise diminishes or stops. A setting of 30% or 80% often minimizes it. IF THAT DIDN'T WORK Change the refresh rate. In your operating system's display settings, try switching between 60Hz, 75Hz, and the native 75Hz setting. The electrical load difference can change the whine frequency or eliminate it. Also, ensure Adaptive-Sync/FreeSync is turned OFF in the monitor's OSD under GamePlus > Adaptive-Sync, as this dynamically alters circuitry. HEADS UP This noise is an inherent characteristic of some electronic components and is not typically a sign of impending failure. It is often more audible in very quiet environments. If the noise is loud or changes to a crackling sound, contact ASUS support, as that may indicate a faulty component.

Question 15

the colors on my proart look washed out and weird compared to my old monitor, especially the reds. i calibrated it but it still looks off.

Accepted Answer

DIAGNOSIS The monitor is likely receiving a limited RGB color range signal (16-235) instead of the full RGB range (0-255), causing crushed blacks and washed-out colors. This is a common GPU-to-monitor handshake problem. FIX First, check and change the monitor's color format setting. Press the joystick, go to Color > Color Format. Ensure it is set to 'RGB', not 'YCbCr'. Second, force the full dynamic range output from your graphics card. For NVIDIA: Open NVIDIA Control Panel > Display > Change resolution > Output dynamic range > set to 'Full'. For AMD: Radeon Settings > Display > Pixel Format > select 'RGB 4:4:4 Pixel Format PC Standard (Full RGB)'. IF THAT DIDN'T WORK Ensure you are using a 'ProArt Preset' mode like 'sRGB' or 'Rec. 709' as a baseline. Factory reset the monitor via Menu > System > All Reset. Re-run the QuickFit one-touch calibration in the OSD to set a known-good gamma and color temperature starting point. HEADS UP The monitor's factory-calibrated 'sRGB' mode locks many color settings. For accurate work, use this mode and make adjustments from your graphics card or software, not the monitor OSD, to avoid creating a conflicting profile.

Question 16

my asus proart pa278qv monitor just shows no signal from both my laptop and desktop, i've tried both hdmi and displayport.

Accepted Answer

DIAGNOSIS The monitor is receiving power but not a valid video signal from any input. The most likely cause is the monitor's input source not matching the active cable or a cable/GPU handshake issue. FIX First, manually select the correct input source. Press the monitor's rear joystick. Navigate to and select the 'Input Select' menu. Choose the specific port you are using (e.g., DisplayPort 1, HDMI 1). If the signal returns, the Auto Input Select function failed. Second, power cycle the entire chain. Turn off the monitor and PC. Unplug the monitor power cord for 60 seconds. Reconnect power, turn on the monitor first, then the PC. IF THAT DIDN'T WORK Test with a different, high-quality certified cable. For DisplayPort, ensure the cable is fully seated; the connector has a latch. Try a different video output port on your graphics card. On your PC, boot into Safe Mode to load basic display drivers, then restart normally to force a fresh handshake. HEADS UP If using a docking station or adapter, connect the monitor directly to the computer's video output to rule out the intermediary device as the fault. The monitor itself rarely fails; the issue is almost always source or cable related.

ASUS ProArt PA278QV 27 inch WQHD Monitor

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