[Bug 220290] New: Samsung Galaxy Book Pro 360: samsung_laptop module fails to load, keyboard backlight not working

[Bug 220290] New: Samsung Galaxy Book Pro 360: samsung_laptop module fails to load, keyboard backlight not working

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220290

            Bug ID: 220290
           Summary: Samsung Galaxy Book Pro 360: samsung_laptop module
                    fails to load, keyboard backlight not working
           Product: Drivers
           Version: 2.5
          Hardware: Intel
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Platform_x86
          Assignee: drivers_platform_x86@kernel-bugs.osdl.org
          Reporter: l.delvigo.01@gmail.com
        Regression: No

Created attachment 308328
  --> https://bugzilla.kernel.org/attachment.cgi?id=308328&action=edit
This archive contains diagnostic logs from a Samsung Galaxy Book Pro 360
running Fedora 42 (kernel 6.14.9), intended to help debug the failure of the
samsung_laptop kernel module to load.

I am running Fedora 42 with kernel 6.14.9 on a Samsung Galaxy Book Pro 360
(first generation).

The keyboard backlight is not working and does not appear in /sys/class/leds/.
The Fn keys related to keyboard backlight do not trigger ACPI events either.

Attempting to load the samsung_laptop kernel module fails with:

    modprobe: ERROR: could not insert 'samsung_laptop': No such device

This suggests the device is not supported or not detected correctly by the DMI
table lookup used by the module.

Attached is a tar.gz file with full system diagnostics including:
- dmidecode
- dmesg
- journalctl
- lsmod
- lsusb / lspci
- /sys/firmware/acpi/tables/DSDT if available

Please advise if support for this model can be added or if there's any
workaround.


This archive contains diagnostic logs from a Samsung Galaxy Book Pro 360
running Fedora 42 (kernel 6.14.9)

dmidecode.txt – Full DMI table to verify model identification.

uname.txt – Kernel version.

lsmod.txt – Loaded kernel modules.

dmesg.txt – Kernel boot messages.

journalctl.txt – System journal of the current boot.

dsdt.dat – Raw ACPI DSDT table (if available).

leds.txt – Content of /sys/class/leds/.

lspci.txt – PCI device list.

lsusb.txt – USB device list.

modprobe_output.txt – Error output when attempting to load samsung_laptop
module with force=1.

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[Bug 220290] Samsung Galaxy Book Pro 360: samsung_laptop module fails to load, keyboard backlight not working

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220290

Kurt Borja (kuurtb@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kuurtb@gmail.com

--- Comment #1 from Kurt Borja (kuurtb@gmail.com) ---
Hi,

Can you please paste the output of:

# cat /sys/devices/platform/

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[Bug 220290] Samsung Galaxy Book Pro 360: samsung_laptop module fails to load, keyboard backlight not working

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220290

--- Comment #2 from Kurt Borja (kuurtb@gmail.com) ---
Sorry, I meant:

# ls /sys/devices/platform/

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