Launching Spectacle (failed) Remote peer disconnected

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Today out of the blue it started crashing when launching Spectacle with the message Launching Spectacle (failed) Remote peer disconnected.

I switched from Wayland to X11 and Spectacle is starting again. Hmmm, strange… Until the next updates, I will stay on X11.

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This post from ArchLinux forum worked for me.

Delete libva-vdpau-driver and replace with libva-nvidia-driver.

sudo pacman -S libva-nvidia-driver
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Could the Qt upgrade be the cause of most of these problems?

The “remote peer disconnected” notice indicates an external connection of applications and if this connection fails the application cannot start… right?
I don’t know yet if it’s a good idea to bind standard applications to external systems … it would also enable tracking, etc.

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Works fine in X, that would meam it is not the nvidea driver right?

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Just took this, in KDE Plasma Wayland with proprietary Nvidia 570.133.07 drivers using Spectacle:

https://i.imgur.com/PT22Kam.png

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Hmmm, how do I see what driver I am using?

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mhwd --listinstalled

…should do it.

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video-nvidia 2025.01.13 false PCI

Is that the latest for linux?

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$ pacman -Qs nvidia                                                                                                                                                                                                      1 ↵
[...]
local/libxnvctrl 570.133.07-1
NVIDIA NV-CONTROL X extension
local/linux612-nvidia 570.133.07-1 (linux612-extramodules)
NVIDIA drivers for linux612
local/linux66-nvidia 570.133.07-1 (linux66-extramodules)
NVIDIA drivers for linux66
local/mhwd-nvidia 570.133.07-2
MHWD module-ids for nvidia 570.133.07
local/mhwd-nvidia-390xx 390.157-19
MHWD module-ids for nvidia 390.157
local/mhwd-nvidia-470xx 470.256.02-10
MHWD module-ids for nvidia 470.256.02
local/nvidia-driver-assistant 0.20.124.06-1
Detect and install the best NVIDIA driver packages for the system
local/nvidia-settings 570.133.07-2.2
Tool for configuring the NVIDIA graphics driver
local/nvidia-utils 570.133.07-2
[...]

And

$ mhwd --listinstalled
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-nvidia            2025.01.13               false            PCI


Warning: No installed USB configs!

So, I’m guessing that. Well, something in the 570.xxx range anyway.

Do note, however, I have yet to install the latest upgrades, I’m waiting until I have time to do it, so that I['m not rushed, so it might be different.

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Seems not to be an issue with Intel GPU, and Wayland.

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I have AMD + Nvidia, so no Intel on my side.
For me, the solution was this posted by konecny-ondrej :

Delete libva-vdpau-driver and replace with libva-nvidia-driver.

sudo pacman -S libva-nvidia-driver
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Did you give @konecny-ondrej the Solved credit. That’s the check box at the bottom of every post.