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Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook

Cross-posted to 2 groups.

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Hi,


I have made a list of everything that the sysfs attribute can return in 
6.12.90:


actual_brightness: 70
bl_power: 4
brightness: 70
max_brightness: 235
scale: unknown
type: raw
device/driver_override: (null)
device/modalias: platform:asus-nb-wmi
device/uevent: DRIVER=asus-nb-wmi
                MODALIAS=platform:asus-nb-wmi
power/async: disabled
power/control: auto
power/runtime_active_kids: 0
power/runtime_active_time: 0
power/runtime_enabled: disabled
power/runtime_status: unsupported
power/runtime_suspended_time: 0
power/runtime_usage: 0


In 6.12.94, only these files change:

bl_power: 0

max_brightness: 255


These files do not report any information:

uevent: [Blank file]
device/cpufv: [Permission denied]
power/autosuspend_delay_ms: [Input/output error]


For both kernels, setting the brightness to 0 has both brightness and 
actual_brightness report 0.

I cannot check the minimum brightness through uevent because it shows up 
as blank.


Regards,

Ponali

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Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-07 07:40 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Salvatore Bonaccorso <carnil@debian.org> - 2026-07-07 08:20 +0200
  Processed: Re: Bug#1141604: linux-image-6.12.94+deb13-amd64: does  not detect ScreenPad on ASUS VivoBook "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-07-07 08:20 +0200
  Processed: Re: Bug#1141604: linux-image-6.12.94+deb13-amd64: does  not detect ScreenPad on ASUS VivoBook "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-07-07 08:20 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-08 07:30 +0200
    Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Salvatore Bonaccorso <carnil@debian.org> - 2026-07-08 17:00 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-08 18:50 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Salvatore Bonaccorso <carnil@debian.org> - 2026-07-09 22:20 +0200
    Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Denis Benato <denis.benato@linux.dev> - 2026-07-10 14:30 +0200
      Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> - 2026-07-10 14:40 +0200
        Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Salvatore Bonaccorso <carnil@debian.org> - 2026-07-10 20:50 +0200
          Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Denis Benato <denis.benato@linux.dev> - 2026-07-11 18:50 +0200
            Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Thorsten Leemhuis <regressions@leemhuis.info> - 2026-07-21 16:10 +0200
  Processed: Re: Bug#1141604: linux-image-6.12.94+deb13-amd64: does  not detect ScreenPad on ASUS VivoBook "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-07-09 22:20 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-10 19:40 +0200
  Bug#1141604: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-11 19:50 +0200
    Bug#1141604: Fwd: linux-image-6.12.94+deb13-amd64: does not detect ScreenPad on ASUS VivoBook Ponali <ponali2k@gmail.com> - 2026-07-18 10:40 +0200

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