System lags after display turned deactivated

[luisadrian]

Hi!
I just did a fresh install of EndeavourOS with XFce on a laptop with hybrid GPUs (nvidia - intel).
When connected to a monitor (144Hz) via min displayport it works fine but as soon I deactivate my laptop screen (244Hz) using Arandr or the display utility, the system gets way too laggy. Then I activate that display again, the system gets back to normal.
Using top I see nothing weird or CPU, RAM spikes.

[jonathon]

It sounds a lot like this:

PSA: bug in Nvidia driver causes dbus spam

Nvidia’s recent drivers, including 495.46 contains a potentially serious bug that may degrade performance. There is a workaround for now (in the form of an AUR package linked below), but no word yet from Nvidia on a fix. https://aur.archlinux.org/packages/nvidia-fake-powerd/ systemctl daemon-reload systemctl enable nvidia-fake-powerd.service systemctl start nvidia-fake-powerd.service systemctl status nvidia-fake-powerd.service

[kjw]

Welcome to the forum @luisadrian

[s4ndm4n]

Welcome to forums.

It would be great if you can include more details about the system. Please run the below command in your system’s terminal and post the link that it shows here.

inxi -Fxxc0z --no-host | eos-sendlog

[luisadrian]

@jonathon I just installed that library from the AUR and started the service but the problem persist when the laptop screen is deactivated

[luisadrian]

Thanks @s4ndm4n
This is the uname -a output:
Linux blade-blade 5.15.12-arch1-1 #1 SMP PREEMPT Wed, 29 Dec 2021 12:04:56 +0000 x86_64 GNU/Linux
GPUs info:

00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-H GT2 [UHD Graphics 630]
	DeviceName: Onboard - Video
	Subsystem: Razer USA Ltd. Device 2005
--
01:00.0 VGA compatible controller: NVIDIA Corporation TU106M [GeForce RTX 2070 Mobile] (rev a1)
	Subsystem: Razer USA Ltd. Device 2005
	Kernel driver in use: nvidia

inxi -Fxxc0z --no-host | eos-sendlog

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3611    0    24  100  3587     40   6122 --:--:-- --:--:-- --:--:--  6162
https://clbin.com/Dnhhy

[s4ndm4n]

Did you restart the machine after installing and enabling the service? If not just give it a quick restart and see if it’s still the same.

[luisadrian]

Yes, I tried both without restart and after restarting the system but the problem persist.
Here is the status of the service if that can help:

➜  ~ systemctl status nvidia-fake-powerd.service
● nvidia-fake-powerd.service - NVIDIA fake powerd service
     Loaded: loaded (/usr/lib/systemd/system/nvidia-fake-powerd.service; enabled; vendor preset: disabled)
     Active: active (running) since Thu 2022-01-06 09:33:42 -05; 1h 9min ago
   Main PID: 547 (dbus-test-tool)
      Tasks: 1 (limit: 38374)
     Memory: 444.0K
        CPU: 22ms
     CGroup: /system.slice/nvidia-fake-powerd.service
             └─547 /usr/bin/dbus-test-tool black-hole --system --name=nvidia.powerd.server

ene 06 09:33:42 blade-blade systemd[1]: Starting NVIDIA fake powerd service...
ene 06 09:33:42 blade-blade systemd[1]: Started NVIDIA fake powerd service.