Keyboard issues on boot

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Hello,
When I bought my new laptop (MSI Thin GF63 12UCX) I installed Fedora 41 KDE with encryption enabled. Everything is working great, but there’s this issue that has always been bothering me.

Basically, whenever I turn on the PC, Plymouth asks for my passphrase and when I start typing it, the keyboard will become unresponsive for a moment, just enough to make me skip a character or two.

The issue doesn’t seem to present itself if I wait long enough before typing in the passphrase, so usually I would turn on the laptop while preparing the desk and wait for a bit (usually 5s after the prompt appears are enough).

I don’t know what might be causing this issue, and I wouldn’t even know what to try for diagnosing the problem.

Did anyone else experience this? What could I try to see what’s wrong or how to resolve this?

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For me, it’s this problem:

Since installing Fedora 42 (KDE and GNOME editions), I have been experiencing intermittent keyboard issues:

  • Keys are activated randomly, such as F7 (external display configuration), Tab, Shift etc.
  • Character sequences such as $ty; ty; tty... appear spontaneously in text fields.
    *Once the phrase “georgia nursery” appeared without any action on my part!!!
  • These behaviors sometimes manifest themselves from the LUKS unlock screen.
  • A quick reboot doesn’t fix the problem, but a long, complete shutdown followed by a reboot seems to temporarily clear it up.

Additional Information

  • Hardware: Lenovo G14 V4 AMN laptop
  • Keyboard: I only use the built-in keyboard, in normal AZERTY.
  • Fedora version: Fedora 42 KDE / GNOME
  • Updates: done.

I tested the keyboard on another system, and it works fine, which seems to rule out a hardware issue, with the phrase “Georgia nursery”…

Have you ever encountered this type of problem or do you have any suggestions for solving it?
I feel like I’ve caught a virus, even though I checked the ISO, checksum, PGP…
And I have reinstalled fedora 3 times since the first time:

Installing Fedora: the problem occurs shortly after (Fedora GNOME) > Reinstalling Fedora GNOME > Installing Fedora KDE (fed up with GNOME), the problem occurs 2 days later...

Thank you in advance for your help!