Lag on external monitor

[andrejtuesday]

I have a dual GPU laptop so I set for hyprland to use Nvidia rendering primary as that removes lag (AQ_DRM_DEVICES, https://wiki.hyprland.org/Configuring/Multi-GPU/). With this my main HDMI monitor works fine but the other Displaylink monitor is not working at all. It is seen by hyprctl with resolution 0x0. If I do not set for hyprland to use Nvidia as primary, both of the monitors work, but the main HDMI monitor is laggy like if I had 15fps.

[vaxerski]

This would be fixable if we had a split renderer, but atm, we don't. It's just how we operate.

[MathisP75]

Is this what KDE and Gnome do? Because the issues with hybrid graphics and external monitors seem to have been fixed on their side.

[DashieTM]

As this is kinda essential for a multi GPU setup using external monitors, would you accept some sort of bug bounty for this?

[MathisP75]

I am using KDE right now and they definitely fixed this, at least mostly. I really hope Hyprland will be able to run as well as this in the near future.

[andrejtuesday]

KDE and Gnome both work completely fine. Hyprland not so much. :/