To achieve a 144Hz refresh rate on your Asus VG248QE monitor from a laptop, you must verify that both the laptop’s video output port and the cable support HDMI 1.4 or higher bandwidth. Most standard HDMI cables will work if they are High Speed rated, but you must manually select the 144Hz option in the operating system’s display settings, as laptops often default to 60Hz for compatibility.
Verify Hardware Compatibility
The Asus VG248QE is a 24-inch monitor with a native resolution of 1920x1080 (Full HD) and a maximum refresh rate of 144Hz. To drive this resolution at 144Hz over HDMI, the connection requires a bandwidth of approximately 7.9 Gbps. This falls within the specifications of HDMI 1.4, which supports up to 1080p at 144Hz or 4K at 30Hz. However, many older or lower-quality HDMI cables may only support HDMI 1.2 or lack the necessary shielding, leading to signal degradation or a fallback to 60Hz. Before connecting, inspect the HDMI cable you intend to use. Look for labels such as "High Speed," "Premium High Speed," or "Ultra High Speed." Avoid using the cheapest, unbranded cables that often fail to maintain stable high-refresh-rate signals under load. If your laptop has a DisplayPort (DP) or Mini DisplayPort output, consider using a DP-to-HDMI adapter or cable instead. DisplayPort 1.2 and later versions handle high refresh rates more reliably than HDMI on many laptop motherboards, reducing the likelihood of handshake failures. If you are unsure about your laptop's specific port capabilities, check the manufacturer’s technical specifications sheet rather than relying on visual inspection alone. Some older laptops have HDMI ports that are physically present but electrically limited to HDMI 1.1, which caps out at 60Hz regardless of the cable used. In these cases, an external USB 3.0 graphics adapter that supports 144Hz might be a necessary workaround, though it introduces additional latency not ideal for competitive gaming.Configure Windows Display Settings
Once the physical connection is secure, the operating system must be instructed to utilize the full refresh rate. Windows 10 and 11 do not always automatically detect the highest possible refresh rate upon connection due to power-saving defaults or driver initialization quirks. You need to navigate to the advanced display configuration to override these defaults. Right-click on an empty area of your desktop and select Display settings. Scroll down to the bottom of the window and click on Advanced display. In the dropdown menu labeled "Choose a display to view or change its settings," ensure that the Asus VG248QE is selected. Below this dropdown, you will see a field labeled "Refresh rate." If it is set to 60Hz, click the dropdown and select 144Hz. If 144Hz is not listed, the system cannot establish a valid signal path at that frequency, indicating a hardware or driver bottleneck. Click Keep changes if the screen remains stable. If the screen goes black, wait ten seconds for Windows to revert the settings, then try a different cable or port. It is crucial to perform this step after the monitor is already powered on and connected, as some GPUs do not enumerate the new display mode until the OS actively queries the connected device. For users experiencing intermittent detection issues, refer to our guide on Laptop Internal Display Not Detected After Connecting External Monitor, which covers troubleshooting steps for when the OS fails to recognize the secondary screen entirely.Update Graphics Drivers and BIOS
Outdated or generic graphics drivers are a common cause of refresh rate limitations. Integrated graphics solutions, such as Intel UHD or Iris Xe, and dedicated GPUs like NVIDIA GeForce or AMD Radeon, each require specific driver packages to expose all supported modes. Generic Microsoft Basic Display Adapters will never support 144Hz. Visit the official website of your laptop manufacturer or the GPU vendor directly. Download the latest stable driver for your specific model. During installation, choose a "Clean Install" option if available to remove any corrupted previous configurations. After restarting, repeat the display settings verification process described above. In rare cases, BIOS updates from the laptop manufacturer include improvements to the internal MUX switch or PCIe lane routing, which can affect external display performance. Check for any available firmware updates through your laptop’s support utility. While BIOS updates carry risk, they are generally safe if performed while plugged into AC power. If you are using an adapter, particularly a DisplayPort to HDMI converter, ensure it is active and certified for 144Hz. Passive adapters often fail to convert the signal correctly at high bandwidths. For more details on adapter-related detection failures, see Second Monitor Not Always Detected with DisplayPort (Male) to HDMI (Female) Adapter.Check Cable Quality and Port Limitations
Even with correct settings, physical layer issues can prevent 144Hz operation. HDMI cables degrade over time, and connectors can become loose. Try reseating the cable firmly on both ends. If you have access to another known-good High Speed HDMI cable, swap it out to rule out cable failure. Some laptops share bandwidth between USB ports and video outputs. If your HDMI port is connected internally to a USB-C hub or a specific chipset lane that is currently maxed out by other peripherals, signal integrity may suffer. Disconnect unnecessary USB devices and test again. Additionally, ensure that the monitor itself is set to the correct input source via its On-Screen Display (OSD) menu. The OSD button on the Asus VG248QE allows you to confirm that the monitor is receiving a signal and what resolution/refresh rate it believes it is displaying.Optimize for Gaming Performance
Achieving 144Hz is only half the battle; maintaining frame consistency is essential for a smooth experience. Ensure that your game’s in-video settings match the monitor’s refresh rate. If your game is capped at 60 FPS, the extra Hz provides no benefit. Use tools like MSI Afterburner or built-in GPU overlays to monitor real-time frame rates. Disable V-Sync if you experience input lag, but be aware of screen tearing. Alternatively, enable Variable Refresh Rate (VRR) technologies like G-Sync Compatible or FreeSync if your GPU and monitor support them. Note that the Asus VG248QE does not support G-Sync or FreeSync hardware modules, so it relies on traditional tearing control methods. Keep your game engine updated, as newer patches often improve multi-monitor handling and refresh rate detection logic.Frequently Asked Questions
Why does my monitor drop to 60Hz when I start gaming?
This usually indicates that the game application is capping its frame rate, or the GPU driver is reverting to a power-saving profile. Check the in-game video settings to ensure the frame limit is removed or set higher than 144 FPS. Also, verify that your power plan is set to "High Performance" to prevent the GPU from throttling.
Can I use a USB-C to HDMI adapter for 144Hz?
Yes, provided the adapter supports DisplayPort Alternate Mode and is rated for 144Hz at 1080p. Many cheap USB-C hubs only support 4K at 30Hz or 1080p at 60Hz. Look for adapters explicitly stating "144Hz" or "HDMI 2.0" support in their specifications before purchasing.
What should I do if 144Hz is grayed out in Windows settings?
If the option is unavailable, your current cable likely does not support the required bandwidth, or the GPU driver is outdated. Switch to a certified High Speed HDMI cable and update your graphics drivers. If the issue persists, try a different HDMI port on the laptop or use a DisplayPort connection if available.
Does the Asus VG248QE support audio over HDMI?
Yes, the monitor has built-in speakers and supports audio transmission over HDMI. However, you must select the monitor as the playback device in Windows Sound settings. If audio cuts out, refer to our guide on Fixing a Phantom Gaming Monitor: HDMI vs. DisplayPort for Audio for detailed troubleshooting steps.
Is DisplayPort better than HDMI for 144Hz gaming?
DisplayPort is generally more robust for high refresh rates because it natively supports daisy-chaining and has historically had fewer handshake issues with variable refresh rates. If your laptop has a DisplayPort output, using a DP-to-HDMI adapter or a direct DP monitor (if available) can provide a more stable 144Hz signal than HDMI on older hardware.