#1126433 linux-image-6.1.0-42-amd64: RTL8191S USB WiFi dongle not detected at all in kernel 6.1.0-42

#1126433#5
Date:
2026-01-26 01:06:55 UTC
From:
To:
Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

Note: Using old kernel 6.1.0-41 to file this report.
   * What led up to the situation?
After system update to kernel 6.1.0-42, my RTL8191S USB WiFi dongle is no
longer detected. The device works perfectly with kernel 6.1.0-41.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
Workaround: Boot with kernel 6.1.0-41-amd64 - device works immediately
   * What was the outcome of this action?
WiFi dongle detected. Internet access restored.
   * What outcome did you expect instead?
Expected: Device should be detected and r8712u driver loaded
Actual: Device completely undetected, no light on dongle

Steps to reproduce:
1. Boot with kernel 6.1.0-42-amd64
2. Plug in RTL8191S USB WiFi dongle
3. Run: lsusb (device not listed)
4. Check dmesg (no USB detection messages)

*** End of the template - remove these template lines ***