Limit to 30 frames per second during duplication of the screen.
Limit to 30 frames per second during duplication of the screen.
Whenever I copy the screen on my laptop to another monitor, the game frame rate drops to around 30 frames per second. A bit of background: this problem only shows up when I expand the display, not just when increasing resolution. It seems all games are affected, and no drivers or settings have battery-saving turned on. My machine has an i5-7300HQ processor (turbo at 3.1GHz across all cores) and a GTX 1050 graphics card. The connection uses HDMI 1.4, probably linked to the integrated GPU, though games running on the dedicated GPU work without issues. Display settings indicate both screens are set to 60Hz. I’m guessing it’s because the integrated GPU’s bandwidth is limiting performance, or maybe a Windows restriction. It’s a small concern—just wondering if anyone knows the cause. Updated December 21, 2017 by Guest Wording
With switchable graphics enabled, the setup uses the laptop panel and HDMI port connected to Intel’s built-in graphics. The Nvidia GPU drivers render each frame into its own frame buffer, then pass it to Intel’s integrated graphics instead of showing it directly. It tricks the Intel GPU into thinking rendering is complete so it sends the frame to the connected display. This technique can be quite effective. When you mention "duplicate," are you referring to cloning or extending? If your display is set to 1080p, do you encounter issues? Would a lower resolution like 720p work better? Make sure you have the most recent drivers from the laptop manufacturer, not just Nvidia or Intel websites.
If you're considering cloning, then it's not the case. The performance remains smooth—games operate at 60 frames per second without issues. It's even more surprising that two distinct games can run simultaneously on separate displays while maintaining over 30 frames per second.
Yes, your configuration remains at 60Hz or 59Hz with a resolution of 1080p after cloning.
Yes. And a screen shot for good measure: Spoiler Edit: and its also set to 1080p Edited December 21, 2017 by Guest Wording and 1080p