First Edition June 2023 Copyright © 2023 ASUSTeK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Contents Notices.......................................................................................................... iv Safety information........................................................................................ v Care & Cleaning........................................................................................... vi Takeback Services...................................................................................... vii Product information for EU energy label....................
Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Safety information • Before setting up the monitor, carefully read all the documentation that came with the package. • To prevent fire or shock hazard, never expose the monitor to rain or moisture. • Never try to open the monitor cabinet. The dangerous high voltages inside the monitor may result in serious physical injury. • If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.
This symbol of the crossed out wheeled bin indicates that the product (electrical, electronic equipment, and mercury-containing button cell battery) should not be placed in municipal waste. Please check local regulations for disposal of electronic products. AEEE yönetmeliğine uygundur Care & Cleaning • Before you lift or reposition your monitor, it is better to disconnect the cables and power cord. Follow the correct lifting techniques when positioning the monitor.
Where to find more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS websites worldwide provide updated information on ASUS hardware and software products. Refer to http://www.asus.com 2. Optional documentation Your product package may include optional documentation that may have been added by your dealer. These documents are not part of the standard package. 3. About Flicker https://www.asus.
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1.1 Welcome! Thank you for purchasing the ROG gaming monitor! The latest widescreen LCD monitor from ASUS provides a broader, brighter and crystal-clear display, plus a host of features that enhance your viewing experience. With these features, you can enjoy the convenience and delightful visual experience that the monitor brings to you! 1.
1.3 Monitor introduction 1.3.1 Front/side view 1 2 3 4 5 1. ( 5-way) button: • Turns on the OSD menu. Enacts the selected OSD menu item. • Increases/Decreases values or moves your selection up/down/left/ right. • Turns on the OSD menu when the monitor enters standby mode or displays the “NO SIGNAL“ message. 2. button • Exits the OSD menu item. • Turns on the OSD menu when the monitor enters standby mode or displays the “NO SIGNAL“ message. • Press the function. 3.
• Default: GameVisual. • To change the shortcut function, go to the MyFavorite > Shortcut > Shortcut 2 menu. • Turns on the OSD menu when the monitor enters standby mode or displays the “NO SIGNAL“ message. 5. Power button/power indicator • Turns the monitor on/off. • The color definition of the power indicator is as the below table. 1.3.2 Status Description White Amber OFF ON Standby mode/No signal OFF Back view 1. HDMI-2 port. This port is for connection with an HDMI compatible device. 2.
1.3.3 • Other Function(s) HDR The monitor supports HDR format. When displaying HDR content, the following function(s) are not available: ELMB/ELMB Sync, GameVisual, Shadow Boost, Brightness, Contrast, ASCR, Blue Light Filter, Color Temp., Gamma, Saturation.
2.1 Assembling the monitor arm/base 1. Insert the base into the arm. 2. Fix the base to the arm by fastening the bundled screw. We recommend that you cover the table surface with soft cloth to prevent damage to the monitor. Base screw size: M6 x 15 mm. 2.2 Cable management You can organize the cables with the help of the cable management hole.
2.3 Adjusting the monitor • For optimal viewing, we recommend that you look at the full face of the monitor, then adjust the monitor to the angle that is most comfortable for you. • Hold the stand to prevent the monitor from falling when you change its angle. • The recommended adjusting angle is +20˚ to -5˚ (for tilt)/+25˚ to -25˚ (for swiveling/+110 mm (for height adjustment)/90˚ (for portrait view). -5° ~ +20° 110mm 25° (Tilt) 0° 25° (Swivel) (Height adjustment) Pivoting the monitor 1.
2.4 Detaching the arm (for VESA wall mount) The detachable arm of this monitor is specially designed for VESA wall mount. To detach the arm: Have the front of the monitor face down on a table. Please follow the below 2 steps to detach the arm. 1. Press the release button. 2. Detach the stand (arm and base) from the monitor. 2 1 We recommend that you cover the table surface with soft cloth to prevent damage to the monitor. • The VESA wall mount kit (100 x 100 mm) is purchased separately.
2.5 Connecting the cables Connect the cables as the following instructions: • • To connect the power cord: a. Connect the power adapter securely to the monitor’s DC input. b. Connect one end of the power cord to the power adapter and the other end to a power outlet. To connect the HDMI/DisplayPort cable: a. Plug one end of the HDMI/DisplayPort cable to the monitor’s HDMI/ DisplayPort jack. b. Connect the other end of the HDMI/DisplayPort cable to your device’s HDMI/DisplayPort jack.
» 2.6 Downstream: Plug the USB Type A cable of your device to the monitor's USB Type A jack. Turning on the monitor Press the power button . See page 1-3 for the location of the power button. The power indicator lights up in white to show that the monitor is ON.
2-6 Chapter 2: Setup
3.1 OSD (On-Screen Display) menu 3.1.1 How to reconfigure ROG STRIX XG259QN 1920x1080 380Hz GameVisual Racing Mode Input Select DisplayPort HDR OFF Overclocking Gaming Variable OD 10 Variable Refresh Rate Image ELMB/ELMB SYNC GamePlus Color GameVisual Input Select Shadow Boost MyFavorite Volume ( 50 Back Enter Exit 1. Press the 2. Move the ( ) button up/down to navigate through the functions. Highlight the desired function and press the ( ) button to activate it.
3.1.2 1. OSD function introduction Gaming ROG STRIX XG259QN 1920x1080 380Hz Gaming Image Color Input Select GameVisual Racing Mode Input Select DisplayPort HDR OFF Overclocking Variable OD 10 Variable Refresh Rate ELMB/ELMB SYNC GamePlus GameVisual Shadow Boost MyFavorite Volume • 50 Back Enter Exit Overclocking: * ON: This function allows you to adjust the refresh rate. * Max Refresh Rate: Allows you to select a maximum refresh rate of 380Hz (Only for DisplayPort input).
• • • GamePlus: The GamePlus function provides a toolkit and creates a better gaming environment for users when playing different types of games. * FPS Counter: The FPS (frames per second) counter lets you know how smooth the game is running. * Crosshair: The crosshair overlays with 6 different crosshair options letting you choose the one that best suits the game you’re playing. * Timer: You can position the timer on the upper left corner of the display so you can keep track of the gaming time.
2. Image ROG STRIX XG259QN 1920x1080 380Hz Gaming Image Color Input Select Brightness 15 Contrast 80 VividPixel 50 GameVisual Racing Mode Input Select DisplayPort HDR OFF HDR Setting ASCR Aspect Control Blue Light Filter MyFavorite Volume 50 Back Enter Exit • Brightness: The adjusting range is from 0 to 100. • Contrast: The adjusting range is from 0 to 100. • VividPixel: This function enhances the outline of the displayed picture and generates high-quality images on screen.
• 3. High energy blue light may lead to eye strain and AMD (Age-Related Macular Degeneration). Blue light Filter reduces 70% (max.) harmful blue light to avoid CVS (Computer Vision Syndrome). Color ROG STRIX XG259QN 1920x1080 380Hz Gaming Image GameVisual Racing Mode Input Select DisplayPort HDR OFF Color Temp. Gamma Saturation 50 Color Input Select MyFavorite Volume Back 50 Enter Exit • Color Temp.: Contains 4 modes including Cool, Normal, Warm, and User Mode.
5. MyFavorite ROG STRIX XG259QN 1920x1080 380Hz Gaming GameVisual Racing Mode Input Select DisplayPort HDR OFF Shortcut Customized Setting Image Color Input Select MyFavorite Volume • Back 50 Enter Exit Shortcut: • Shortcut 1/Shortcut 2: Sets the shortcut functions for shortcut buttons. When a certain function is selected or activated, your shortcut button may not support.
When using the USB Type-B to Type-A USB cable, it can be connected between upstream- and downstream-facing ports for USB devices such as keyboard, mouse, or flash drive. • Power Indicator: Turns the power LED indicator on/off. • Power Key Lock: Enables or disables the power key. • Key Lock: To disable all function keys. Press the cancel the key lock function. • Power Setting: • button for over 5 seconds to • Standard Mode: Standard mode setting may result in higher power consumption.
3.2 Specifications summary Panel type Panel size Max. resolution Pixel pitch Brightness (Typ.) Contrast ratio (Typ.) Viewing angle(H/V) CR>10 Display colors Response time Color temperature selection Analog input Digital input Earphone jack Audio input Speaker (Built-in) USB 3.
Accessories Compliance and standards Quick start guide, warranty card, power adapter, power cord, DP cable (optional), HDMI cable (optional), USB Type-A to Type-B cable (optional), color clibration testing report, ROG sticker CB, CE, CU, CCC, cTUVus, MEPS, FCC, RCM, BSMI, VCCI, RoHS, WEEE, J-MOSS, ErP, PSE, CEL, Windows 10/11 WHQL, KCC, Korea MEPS, TUV-Flicker Free, TUV-Low Blue Light, UkrSEPRO, ICES-3, CEC, PC Recycle *Specifications are subject to change without notice.
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3.4 Troubleshooting (FAQ) Problem Power LED is not ON The power LED lights white and there is no screen image Screen image is too light or dark Screen image bounces or a wave pattern is present in the image Screen image has color defects (white does not look white) Brightness decreases after displaying HDR content for a period of time Possible Solution • Press the button to check if the monitor is in the ON mode. • Check if the power cord is properly connected to the monitor and the power outlet.
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Video timing DisplayPort HDMI 640 x 480 4:3 60Hz 60Hz 720 x 480 4:3 60Hz 60Hz 720 x 480 16:9 60Hz 60Hz 720 x 576 4:3 50Hz 50Hz 720 x 576 16:9 50Hz 50Hz 1280 x 720 50Hz 50Hz 1280 x 720 60Hz 60Hz 1920 x 1080 24Hz 24Hz 1920 x 1080 25Hz - 1920 x 1080 30Hz - 1920 x 1080 50Hz 50Hz 1920 x 1080 60Hz 60Hz 1920 x 1080 100Hz 100Hz 1920 x 1080 120Hz 120Hz ROG Strix XG259QN Series Gaming LCD Monitor 3-13
3-14 Chapter 3: General Instructions