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brochignac

Member

Registered: Yesterday

Posts: 4

Stucked mouse/brightness jumps to 100% at login on Wayland/kde/Nvidia

Hello,

When I login to my "Plasma (Wayland)" session, my mouse is stucked at the middle of the screen and the brightness jumps to 100%.
The keyboard works.
I use the last open nvidia drivers (595.58.03-2) for dkms and opencl.
And Grub is configured with "nvidia-drm.modeset=1 nvidia-drm.fbdev=1 nvidia.NVreg_EnableGpuFirmware=0" options.
I also try to disconnect/connect the mouse usb dongle without success.
What's more, I have no problem with my "Plasma (X11)" session.
I also have a Kubuntu 24.04 partition that runs smoothly on "Plasma (Wayland)" session.

hardware:
- Nvidia RTX5050
- Logitech M330 wireless

Last edited by brochignac (Yesterday 12:10:58)

brochignac

Member

Registered: Yesterday

Posts: 4

Re: Stucked mouse/brightness jumps to 100% at login on Wayland/kde/Nvidia

A few details:

1- RTX 5050:
I upgraded my GPU three weeks ago from a GTX 660 to an RTX 5050.
I also updated the Nvidia drivers from version 470 to 595.

2- Brightness increasing to 100%:
I have my monitor (Dell P2423) set to 10% brightness.
During my first tests of the Plasma (Wayland) session, apart from the mouse freezing, I received a message along the lines of (from memory) “Monitor power consumption will increase, confirm yes/no”.
After a few attempts, I realised I had to confirm using the monitor controls rather than the keyboard
So I selected “yes” and the screen brightness went up to 100%.

So now I have a frozen mouse and a screen that jumps from 10% to 100% brightness.
Problems with Plasma or the Nvidia drivers or ... ?

Thanks

brochignac

Member

Registered: Yesterday

Posts: 4

Re: Stucked mouse/brightness jumps to 100% at login on Wayland/kde/Nvidia

Continued:

When I used the Meta key to access the KDE system settings, I noticed that in the ‘Mouse & Touchpad’ -> Mouse section, the ‘Logitech B330/M330/M3’ device was greyed out and the ‘Enable device’ box was unchecked and couldn't be ticked.

After doing some research online (thanks Le Chat Mistral), I opened the file ~/.config/kcminputrc and changed:

[libinput][..][..][Logitech B330/M330/M3]
Enable=false -> true

The mouse is now working, even though the device is still greyed out in the KDE system settings, but with the ‘Enable device’ box ticked (champagne!!! )

As for the screen, it always goes up to 100% brightness

[1/2 SOLVED]

Last edited by brochignac (Today 14:56:27)

brochignac

Member

Registered: Yesterday

Posts: 4

Re: Stucked mouse/brightness jumps to 100% at login on Wayland/kde/Nvidia

End:

Brightness at 100%:

In the KDE System Settings, under Wayland, in the section:

‘Input & Output’ -> ‘Display & Screen’ -> ‘Display Settings’

simply uncheck the line:

Brightness: Control hardware brightness with the << DDC / CI >> feature

and everything will be back to normal

Sorry for the trouble.

PS: I can't [SOLVED] the title.