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Bug#1111229: linux-image-amd64: Internal laptop camera not detected after kernel update in Debian 13

Cross-posted to 2 groups.

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Package: linux-image-amd64
Version: 6.12.41-1

After updating to kernel version 6.12.41-1 on Debian 13 (linux-image-amd64), the internal laptop camera stopped being detected by the system. This issue did not occur with the previous kernel version, where the camera functioned normally.

Steps to reproduce:
1. Update the system to kernel 6.12.41-1.
2. Reboot the laptop.
3. Check the camera using applications like Cheese, Zoom, or other video conferencing tools — the device is not listed.

What I tried:
- Verified the BIOS settings (camera enabled).
- Checked with `lsusb` and `dmesg` (no detection of the camera hardware).
- Rolled back to previous kernel — camera works again.
- Confirmed no hardware or BIOS update occurred, only the kernel update.

Outcome:
The camera is not detected or usable in any application when running the new kernel.

Expected outcome:
The internal camera should be detected and function normally after the kernel update, as it did before.

This suggests a possible regression in the kernel related to the camera driver.

Thank you for your attention and support.
Severity: important

Dear Maintainer,

-- System Information:
Debian Release: 13.0
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.41+deb13-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=es_CO.UTF-8, LC_CTYPE=es_CO.UTF-8 (charmap=UTF-8), LANGUAGE=es_CO:es
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-amd64 depends on:
ii  linux-image-6.12.41+deb13-amd64  6.12.41-1

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information

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Thread

Bug#1111229: linux-image-amd64: Internal laptop camera not detected after kernel update in Debian 13 Diegor <diego.rosero7@gmail.com> - 2025-08-15 23:50 +0200
  Bug#1111229: linux-image-amd64: Internal laptop camera not detected after kernel update in Debian 13 Salvatore Bonaccorso <carnil@debian.org> - 2025-08-16 09:20 +0200
  Processed: Re: Bug#1111229: linux-image-amd64: Internal laptop  camera not detected after kernel update in Debian 13 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-08-16 09:20 +0200
  Bug#1111229: closing 1111229 Salvatore Bonaccorso <carnil@debian.org> - 2025-09-13 23:20 +0200
    Processed: closing 1111229 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-09-13 23:20 +0200

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