Linking an external monitor to your laptop isn't enabling 165Hz performance.
Linking an external monitor to your laptop isn't enabling 165Hz performance.
Hello, welcome! I just purchased an LG UltraGear 165Hz 1440p monitor for use with my MSI laptop. The laptop's display is set to 144Hz and functions properly, but when connected via HDMI to the monitor, I only see up to 60Hz. I've adjusted various settings in both Windows and the Nvidia control panel, but haven't been able to improve the refresh rate beyond that. Could someone assist me with this issue?
I checked that too and it’s a bit confusing. The issue might be related to how the video signal is handled between the port and the GPU. It seems the HDMI connection is routed through the CPU, which could affect performance at higher resolutions like 1080p. Also, the display appears connected via USB-C, but the control panel lists Intel HD Graphics instead of the actual GPU. That mismatch might be causing confusion. Let me know if you need more details!
I lack sufficient knowledge about laptops and their inner workings, so I’d guess the internal screen connects through an internal USB-C port. The external connections probably use a multiplexer that routes signals to both the integrated graphics unit and the dedicated GPU, allowing switching between performance and power-saving modes. On the desktop side, it seems the integrated graphics are favored mainly for efficiency. When it comes to resolution and refresh rate, you must provide enough data throughput. For example, 1080p at 60Hz demands less bandwidth than 1080p at 120Hz. 1440p needs roughly 80% more bandwidth per frame, making 1440p at 60Hz roughly similar to 1080p at 120Hz. This is just a rough idea; the details are complex. https://en.wikipedia.org/wiki/HDMI#Refre...esolutions It might help if you lower your monitor’s color depth (like from 10bit to 8bit) or switch to another color format.
It's already in 8-bit, but I'm not sure how to adjust the color format. I could give it a shot. Thanks for the support!