Kernel 7.0.0-28 regression: WiFi and webcam not working on MacBook Air

[Omniclass46]

System Information:

• OS: Zorin OS 18.1
• Kernel working: 6.17.0-35-generic
• Kernel with issues: 7.0.0-28-generic
• Device: Apple MacBook Air (Intel)
• CPU: Intel Core i5 (MacBook Air 2015)
• Architecture: x86_64

Problem Summary:

After updating to the new kernel 7.0.0-28-generic, several built-in hardware devices stopped working correctly. Booting back into the previous kernel 6.17.0-35-generic restores functionality.

Issue 1: Internal WiFi

Under kernel 7.0.0-28-generic:

• Built-in WiFi is not detected/does not function properly.
• The Broadcom wireless adapter is present but the driver does not load correctly.

Hardware detected:

Broadcom BCM4360

The previous kernel 6.17.0-35-generic works correctly with the WiFi hardware.

Issue 2: Internal FaceTime HD Camera

Under kernel 7.0.0-28-generic:

• Webcam applications fail because /dev/video0 is not created.
• guvcview reports:

Cannot open device /dev/video0, exiting.

The UVC driver is loaded:

uvcvideo
videobuf2_v4l2
videobuf2_common
videodev

However, the internal Apple webcam does not appear.

lsusb under kernel 7.0 shows:

Apple Internal Keyboard / Trackpad
Apple Bluetooth USB Host Controller

but no FaceTime HD Camera device.

Booting into kernel 6.17.0-35-generic restores normal behavior.

Steps to Reproduce:

1. Install/update to kernel:

7.0.0-28-generic

2. Reboot and select the new kernel from GRUB.
3. Check:

uname -r

Result:

7.0.0-28-generic

4. Test WiFi and webcam.
5. Boot back into:

6.17.0-35-generic

and both devices work again.

Expected Behavior:

The new kernel should maintain hardware compatibility with existing supported devices, including:

• Broadcom BCM4360 WiFi
• Apple FaceTime HD Camera

Actual Behavior:

Kernel 7.0.0-28 causes regression where:

• WiFi driver does not function correctly.
• Internal webcam is not detected.

Additional Information:

The system boots normally. The issue appears to be a kernel hardware support regression rather than an installation problem.

[Forpli]

For the broadcom drivers there should have been already a fix. Is your system updated? Does it still not work?

Kernel 7.0.0-28 - Kernel Panic or graphics issues notice

We've been investigating the issues related to the recent update to the Linux kernel 7.0 in Zorin OS 18 and have just released fixes for them in our repositories around 20 minutes ago. As a result, installing the latest software updates normally (through the Software Updater) as of now should allow you to upgrade from the Linux kernel 6.17 → 7.0 without experiencing a kernel panic. If you've already installed the update to the Linux kernel 7.0 and are experiencing a kernel panic at boot, please…

[swarfendor437]

Personally I think it might be a conflict with the hardware.

Additionally, the kernel developer contributor responsible for network coding redacted most of the libraries/drivers for networking that existed in earlier kernels, and A.I. code was used specifically around networking in version 7 of the Linux kernel.

I would backup your system with the old kernel and would be curious to know if the Liquorix kernel would work on a Mac. I don't have a Mac, but my PCLOS Debian (X11) Plasma is currently on Liquorix 7.1.5.

[Ponce-De-Leon]

Welcome to the Forum!

Do You already have the Broadcom Driver installed?