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I'm having an issue with X11 on Debian: the mouse will sometimes start randomly clicking like 10 times per second for about 2 - 3 minutes.

It starts when there's some kind of video content started on the screen, like a YouTube video or a Zoom call. It happens about 20% of the time when this content is started. Once it starts, it won't stop for another 2 - 3 minutes.

It might be my mouse, but I've tried 2 and it happens with both. When I unplug the mouse, it just continues to click.

Anyone know why this might be happening?

Here is a video of such an event.

I have a Dell XPS 15 laptop. I've tried disabling all the touchscreen input devices (Wacom) and KVM drivers.

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  • May be a internal hardware issue. Does it happen in other distros/OS ? Sep 11, 2021 at 20:17
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    You might want to debug which device file is sending those "commands" which cause the clicking Sep 12, 2021 at 16:32
  • @IbnFulan I was once running Arch Linux (with Xfce) and it never happened. Right now I'm running Debian with Gnome. Sep 13, 2021 at 13:30
  • @SirMuffington Okay I'll try that. Sep 13, 2021 at 13:31
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    If you think it's an USB device you need to mount usbmon and then run WireShark with root rights. In your case I would sniff usbmon0, which has all the USB traffic Sep 13, 2021 at 17:47

1 Answer 1

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I found the problem. It was my Dell touchpad. Device: "DLL080D:01 06CB:7A13 Touchpad".

As my mouse was doing the auto click, I disabled it with xinput disable 'DLL080D:01 06CB:7A13 Touchpad' and the clicking stopped instantly.

Thanks to the commenters for helping me out!

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