Question 1

is there a way to clean the screen without damaging it? the anti-glare coating seems weird.

Accepted Answer

DIAGNOSIS You're right to be careful. The screen has a strong matte anti-glare coating that can look speckled or "dirty" even when clean, and harsh cleaners can damage it. FIX Power off the monitor so you can see streaks. Use a dry, soft microfiber cloth (like the kind for glasses) first to wipe away dust with light pressure. If you need moisture, dampen a second microfiber cloth with distilled water only—never spray liquid directly on the screen. Wipe gently in one direction. For stubborn spots, use a 50/50 mix of distilled water and white vinegar on the cloth, not the screen. The vinegar helps with grime without harming the coating. IF THAT DIDN'T WORK If there are persistent streaks or what looks like oily marks, it might be residue from someone using a bad cleaner. Try a monitor-specific cleaning solution that explicitly says it's safe for anti-glare/matte coatings. Apply a tiny amount to your microfiber cloth, not the panel. HEADS UP Never use window cleaners, Windex, paper towels, napkins, or anything containing alcohol, ammonia, or abrasives. These will permanently haze, strip, or scratch the anti-glare coating, leaving a smeared, blotchy look that you can't fix.

Question 2

the monitor won't turn on at all, no power light, nothing. i've checked the outlet.

Accepted Answer

DIAGNOSIS No power light means it's not getting any electricity. The internal power supply or a fuse is likely dead, or there's a break in the power cord connection. FIX First, do the full circuit check. Unplug the power brick from the wall AND from the back of the monitor. Inspect the cord for any kinks, cuts, or damage. Firmly reconnect the DC barrel plug into the monitor's port—it can feel seated but not be. Try a different wall outlet without a power strip. Wait 30 seconds, then plug just the power brick into the wall. You should see a tiny LED on the brick itself light up (usually green). If that brick LED is off, the external power adapter is dead. IF THAT DIDN'T WORK If the brick's LED is on but the monitor is still dead, the internal DC board is probably faulty. There's no user-serviceable fix for this. Check your purchase date. ASUS offers a 3-year warranty for this model. Contact ASUS support with your serial number (on the sticker on the back) to start an RMA. HEADS UP Never try to use a different power adapter unless you are 100% certain on the voltage (19V), amperage (at least 3.42A), polarity, and barrel jack size. Using the wrong one can fry the monitor permanently. Your best bet is to order an official ASUS replacement adapter.

Question 3

can i use a monitor arm with the vg248qg? the stand takes up too much space.

Accepted Answer

DIAGNOSIS Absolutely. The stand is removable, and the monitor has a standard VESA mount pattern, but there's a specific plastic cover you need to deal with first. FIX Lay the monitor face down on a soft surface. Grip the stand neck and firmly pull it straight down and away from the monitor—it detaches with a firm tug. Now you'll see a rectangular plastic cover with four screw holes. This cover is held by four plastic clips. Use a flathead screwdriver to gently pry it off. Underneath is a 100mm x 100mm VESA mounting pattern. Use the screws that came with your monitor arm (usually M4 screws, 10-12mm length is safe). Don't use screws longer than 12mm or you risk damaging the internal panel. IF THAT DIDN'T WORK If the plastic cover feels impossible to remove, you might have missed a step. Ensure the original stand is completely removed first. The cover should be the only thing left. The clips are tight; work your way around the edges slowly. Don't force it from one corner. HEADS UP The monitor is pretty light (about 5.5 kg without the stand), so most arms will handle it fine. Just make sure your arm is rated for 100x100 VESA. After mounting, all the OSD buttons and the headphone jack on the back will still be accessible.

Question 4

my screen keeps going black for a second then coming back, especially when gaming.

Accepted Answer

DIAGNOSIS That's the monitor losing sync with the signal. It's usually a cable issue, a bandwidth problem, or a feature like G-Sync/Adaptive-Sync acting up. FIX Start with the cable. If you're using the included DisplayPort cable, ensure it's firmly clicked in at both ends. If you're using a different or longer cable, swap it for the stock one. This monitor is officially G-Sync Compatible (it has Adaptive-Sync). Go to NVIDIA Control Panel > Set up G-Sync, and try disabling G-Sync entirely as a test. If the black screens stop, you know it's related. IF THAT DIDN'T WORK The issue might be related to the monitor's power saving features. In the OSD menu, go to System Setup > ECO Mode and set it to Standard (not Off or any other setting). Also, in the same menu, set ASCR to Off. These can sometimes interfere with signal stability. HEADS UP If you're using a high-refresh rate (like 144Hz) and your GPU is under heavy load, a low-quality cable can't handle the data rate and will drop out. Always use the certified cable that came in the box for the high-refresh connection.

Question 5

the colors look really washed out and terrible compared to my old monitor on the same pc.

Accepted Answer

DIAGNOSIS The VG248QG uses a TN panel, which has worse color reproduction and viewing angles than IPS monitors. Out of the box, its default settings are also overly bright and cool-toned. FIX Press the top menu button on the back to open the OSD. Go to Image > Color. First, set Color Temp. to User Mode. Now you can adjust R, G, B sliders. A common decent starting point is R=90, G=90, B=96. Then, go to Splendid > Mode and try Scenery or Standard mode instead of Racing Mode. Finally, lower the Brightness (aim for 60-80) and Contrast (75-80). It'll never be an IPS panel, but this makes it much more palatable. IF THAT DIDN'T WORK The problem might be at the source. On an NVIDIA GPU, open NVIDIA Control Panel > Adjust desktop color settings. Set "Digital vibrance" to around 55-60%. On AMD, it's called "Saturation" in the Radeon Settings. This boosts color intensity without messing with the monitor's OSD. HEADS UP The "Trace Free" (Overdrive) setting in the Image menu is for response time, not color. Setting it too high (like 100) can cause pixel overshoot (inverse ghosting), which can make things look weird. Keep it at 60 or 80 for best balance.

Question 6

the monitor makes a faint high-pitched buzzing or whining noise, is that normal?

Accepted Answer

DIAGNOSIS Yeah, this one's common. It's coil whine from the power supply or backlight circuitry inside the monitor. It's not dangerous, just annoying. FIX The whine often changes with the brightness setting or the on-screen content. Try lowering the brightness from the OSD menu (the physical buttons on the back). Set it to 80 or below and see if the noise diminishes. Sometimes enabling the "OD" (Overdrive) setting in the OSD under Image > Trace Free can shift the electrical load and change the noise. IF THAT DIDN'T WORK If the noise is clearly coming from the back and is more of a loud buzz, it could be a faulty internal power board. While you can't fix that yourself, check if the monitor is still under warranty (ASUS typically has a 3-year warranty for panels). Contact ASUS support—persistent, loud buzzing is a valid RMA reason. HEADS UP Don't try to open the monitor to "fix" the noise. There's a high-voltage capacitor inside that can hold a dangerous charge long after it's unplugged. You'll also void the warranty instantly.

Question 7

how do i get 144hz on my vg248qg? windows only shows 60hz as an option in display settings.

Accepted Answer

DIAGNOSIS Windows is defaulting to a basic display driver or you're using the wrong cable/port. The monitor can do 144Hz, but you have to set it up correctly. FIX Right-click your desktop, go to Display Settings > Advanced Display Settings > Display Adapter Properties for Display 1. Click the "Monitor" tab. In the "Screen refresh rate" dropdown, 144Hz should appear. If it doesn't, you're likely on HDMI. This monitor's HDMI port is version 1.4, which can't do 144Hz at 1080p. You need to switch to the DisplayPort or Dual-link DVI cable that came in the box. Reboot after swapping cables. IF THAT DIDN'T WORK Download the latest drivers for your specific graphics card (NVIDIA or AMD), not the monitor. After installing, open the NVIDIA Control Panel or AMD Radeon Settings. The refresh rate option in there is more reliable than Windows. Create a custom resolution if you have to, but 1920x1080 at 144Hz is a standard mode it should pick up. HEADS UP Using a cheap or old HDMI cable, or even a single-link DVI cable, will physically lock you at 60Hz. The included cables are certified for the job—just use those.

Question 8

my asus vg248qg just has a black screen but the power light is on, no image at all.

Accepted Answer

DIAGNOSIS The monitor is getting power but isn't receiving a valid video signal it can display. It's almost always the cable or the source, not the monitor itself. FIX First, power cycle everything. Turn the monitor off at its button, then unplug it from the wall for 60 seconds. While it's unplugged, restart your PC or console. Plug the monitor back in, turn it on, then turn your source on. Make sure you're using a DisplayPort or Dual-link DVI cable (the ones that came with it are best for 144Hz), and check both ends are fully seated. IF THAT DIDN'T WORK Try a different video output on your GPU. If you're on DisplayPort, switch to the DVI port using the right cable. This forces Windows or your console to re-detect the display. Also, try mashing the monitor's menu button—sometimes it defaults to a weird input. HEADS UP This monitor doesn't have HDMI 2.0, so if you're trying to run 144Hz over HDMI, it won't work—you'll get a black screen or a capped 60Hz signal. For full refresh rate, you must use DisplayPort or Dual-link DVI.

ASUS VG248QG 24-inch Full HD Gaming Monitor

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