Low fps on external monitor connected to nvidia hdmi port

tm4ig commented 1 month ago

NVIDIA Open GPU Kernel Modules Version

555.42.02

Please confirm this issue does not happen with the proprietary driver (of the same version). This issue tracker is only for bugs specific to the open kernel driver.

[x] I confirm that this does not happen with the proprietary driver package.

Operating System and Version

Arch Linux

Kernel Release

6.9.3

Please confirm you are running a stable release kernel (e.g. not a -rc). We do not accept bug reports for unreleased kernels.

[X] I am running on a stable kernel release.

Hardware: GPU

AMD Radeon 780M IGPU + NVIDIA GeForce RTX 4060 Laptop DGPU (UUID: GPU-36f796c8-ee38-5be5-08a5-c7d8635be2d6)

Describe the bug

I have asus laptop with AMD Radeon 780M IGPU + NVIDIA GeForce RTX 4060 Mobile MAX-Q DGPU and KDE6 and Wayland session. Laptop monitor connected to AMD GPU, external monitor connected to nvidia GPU (HDMI port). When I run glxgears benchmark test in kde 6 wayland session on 555.42.02 nvidia-open driver or 555.42.02 nvidia proprietary driver without nvidia.NVreg_EnableGpuFirmware=0 kernel option on my external monitor connected to nvidia hdmi port I have low fps framerate equal to half the screen refresh rate (in my case I have only ~37-38 fps when external screen refresh rate 75). This looks like a bug https://bugs.kde.org/show_bug.cgi?id=452219 but it nvidia diriver regression because on nvidia-open 550.xx driver or nvidia proprietary driver 555.42 drver wih nvidia.NVreg_EnableGpuFirmware=0 kernel option I have normal framerate on extenal monitor. I can not use nvidia proprietary driver 550.xx or 555.42 because it causes the kernel to panic https://forums.developer.nvidia.com/t/series-550-freezes-laptop/284772/135 and nvidia can not fix this problem more than 3 monthes. I do not want use nvidia open driver 550.xx because with this driver and external monitor I have very large cpu utilization for kwin_wayland proccess

To Reproduce

1) Connect external monitor to nvidia hdmi port, wayland, kwin 6 and nvidia-open driver 555.42.02 2) run glxgears on external monitor

Bug Incidence

Always

nvidia-bug-report.log.gz

More Info

No response

tm4ig commented 1 month ago

similar problem https://forums.developer.nvidia.com/t/wayland-external-monitor-refresh-rate-issue/290752 But in my case problem with nvidia-open 555 driver (or nvidia 555 closed driver with GSP Firmware). With nvidia-open 550 driver (or nvidia proprietary driver 555 with NVreg_EnableGpuFirmware=0 )I have normal framerate on external monitor

tm4ig commented 1 month ago

OGL_DEDICATED_HW_STATE_PER_CONTEXT=ENABLE_ROBUST does not help me

tm4ig commented 1 week ago

With nvidia proprietary linux driver 555, nvidia.NVreg_EnableGpuFirmware=0 kernel option, Wayland and KDE Plasma 6.1 I have low CPU usage (around 5-20% for one core activity for kwin_wayland) and hight frame rate (around 70-75 fps with monitor refresh rate 75 Hz) on external monitor connected to nvidia HDMI port but I have kernels panics as in case https://forums.developer.nvidia.com/t/series-550-freezes-laptop/284772/210

With nvidia open linux driver 555, Wayland and KDE Plasma 6.1 I have hight CPU usage (around 20-80% for one core with activity for kwin_wayland) and low frame rate (around 65-70 fps with monitor refresh rate 75 Hz) on external monitor connected to nvidia HDMI port but I have not kernels panics as in case https://forums.developer.nvidia.com/t/series-550-freezes-laptop/284772/210

With nvidia proprietary linux driver 555, nvidia.NVreg_EnableGpuFirmware=1 kernel option, Wayland and KDE Plasma 6.1 I have hight CPU usage (around 20-80% for one core with activity for kwin_wayland) and low frame rate (around 65-70 fps with monitor refresh rate 75 Hz) on external monitor connected to nvidia HDMI port and I have kernels panics as in case https://forums.developer.nvidia.com/t/series-550-freezes-laptop/284772/210

So on nvidia proprietary driver (full closed mode) I have best performance, but I also have kernel panics On nvidia open driver I have low performance, but have not kernel panics On nvidia proprietary driver with Gpu Firmware enabled (default for 555) I have low performance and I have kernels panics.

Nvidia can not fix kernel panics with hybrid graphics five months

NVIDIA / open-gpu-kernel-modules