Hi, I’m here out of frustration from trying to use my laptop with an Nvidia dedicated graphics card and a external monitor connected to it. At first I thought this was a KDE only issue, which is the main DE I use, but looks like to be a widespread issue across many other DEs: Here are some exampl…

I’m also having issues with my external monitor: Host: Lenovo Legion Pro 5 16ARX8 Kernel: Linux 6.11.0-13-generic Resolution: 2560 x1600 240 hz Resolution external monitor (HDMI): 1920 x1080, 60 hz SO: Ubuntu 24.10 DE: GNOME 47 WM: Wayland CPU: AMD Ryzen 9 7945HX with Radeon Graphics × 32 GPU: AMD …

This is a workaround for Plasma: Display rendering is slow on Plasma 6 on an external monitor - #19 by locklann - Fedora Discussion

Yes, this only forces the discrete GPU to process KWIN and other apps and doesn’t fix the underlying issue. Also, it spikes up the CPU when handling processes.

Yes, its definitely not a solution. It also uses a lot more battery. But it’s better than having an unusable slow desktop. It also sheds some light in where the problem is: transferring surfaces from Nvidia to Intel.

Is there any update on this? I have a Legion 5 Pro and external monitors on the video ports connected directly to my dGPU make any external monitor I connect it to very sluggish and noticeable lag (inconsistent framerate). This happens in Wayland only, Xorg is fine but i can’t use that because my la…

I will try it sometime, but I’m too used to GNOME workflow… I will probably end up selling this laptop and buying something without a dGPU, or with an AMD dGPU, this is too much hassle :/

NVIDIA: Please update us on this issue. Even on KDE, at high refresh rates, frame pacing is still terrible as of the latest closed and open source NVIDIA driver release. I would also like to know what the status of this issue is, GPU copies are clearly still broken in some way.

IIRC, last time I tried they were both noticeably bad. But perhaps KDE was a little better. Do you guys confirm that KDE is doing better these days with this issue?

KDE does better with nvidia-open. Gnome matches KDE usability with closed drivers and nvidia.NVreg_EnableGpuFirmware=0 also 570.86.16 seems to ‘mostly’ fix this issue for me. (performance at par with 565 + nvidia.NVreg_EnableGpuFirmware=0) thanks.

Nvidia, please get it together with external monitors on Wayland

Graphics / Linux Linux

righN January 24, 2025, 6:30pm 48

Switch to KDE, not GNOME. On KDE it’s quite usable, I barely have any issues (RTX 3060 laptop). GNOME is the worst in this regard.

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Nvidia, please get it together with external monitors on Wayland

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