Keyboard backlight is not coming back after suspend

[cognitiveRobot]

Hi, I am having one issue at the moment. When it's back after suspend, keyboard backlight is not working. All other buttons on touch bar is working except the backlight.

Please note I removed tiny-dfr and other details as follows:

cat /etc/systemd/system/suspend-fix-t2.service

[Unit]
Description=Disable and Re-Enable Apple BCE Module (and Wi-Fi)
Before=sleep.target
StopWhenUnneeded=yes

[Service]
User=root
Type=oneshot
RemainAfterExit=yes

#ExecStart=/usr/bin/modprobe -r brcmfmac_wcc
#ExecStart=/usr/bin/modprobe -r brcmfmac
ExecStart=/usr/bin/rmmod -f apple-bce

ExecStop=/usr/bin/modprobe apple-bce
#ExecStop=/usr/bin/modprobe brcmfmac
#ExecStop=/usr/bin/modprobe brcmfmac_wcc
ExecStop=systemctl restart t2fanrd

[Install]
WantedBy=sleep.target

cat /etc/default/grub

GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rhgb text intel_iommu=on iommu=pt pcie_ports=compat"
GRUB_DISABLE_RECOVERY="true"
GRUB_ENABLE_BLSCFG=true

cat /etc/modules-load.d/t2.conf

apple-bce

cat /etc/dracut.conf.d/t2linux-modules.conf

force_drivers+=" apple-bce "

cat /boot/config-6.14.2-300.t2.fc42.x86_64 | grep "CONFIG_MODULE_FORCE_UNLOAD"

CONFIG_MODULE_FORCE_UNLOAD=y

system details:

             .',;::::;,'.                 <user>@fedora
         .';:cccccccccccc:;,.             ------------
      .;cccccccccccccccccccccc;.          OS: Fedora Linux 42 (Workstation Edition) x86_64
    .:cccccccccccccccccccccccccc:.        Host: MacBookPro16,1 (1.0)
  .;ccccccccccccc;.:dddl:.;ccccccc;.      Kernel: Linux 6.14.2-300.t2.fc42.x86_64
 .:ccccccccccccc;OWMKOOXMWd;ccccccc:.     Uptime: 20 mins
.:ccccccccccccc;KMMc;cc;xMMc;ccccccc:.    Packages: 2024 (rpm)
,cccccccccccccc;MMM.;cc;;WW:;cccccccc,    Shell: bash 5.2.37
:cccccccccccccc;MMM.;cccccccccccccccc:    Display (Color LCD): 1920x1200 @ 60 Hz in 16" [Built-in]
:ccccccc;oxOOOo;MMM000k.;cccccccccccc:    DE: GNOME 48.1
cccccc;0MMKxdd:;MMMkddc.;cccccccccccc;    WM: Mutter (Wayland)
ccccc;XMO';cccc;MMM.;cccccccccccccccc'    WM Theme: Adwaita
ccccc;MMo;ccccc;MMW.;ccccccccccccccc;     Theme: Adwaita [GTK2/3/4]
ccccc;0MNc.ccc.xMMd;ccccccccccccccc;      Icons: Adwaita [GTK2/3/4]
cccccc;dNMWXXXWM0:;cccccccccccccc:,       Font: Adwaita Sans (11pt) [GTK2/3/4]
cccccccc;.:odl:.;cccccccccccccc:,.        Cursor: Adwaita (24px)
ccccccccccccccccccccccccccccc:'.          Terminal: Ptyxis 48.1
:ccccccccccccccccccccccc:;,..             Terminal Font: Adwaita Mono (11pt)
 ':cccccccccccccccc::;,.                  CPU: Intel(R) Core(TM) i7-9750H (12) @ 4.50 GHz
                                          GPU 1: AMD Radeon RX 5500/5500M / Pro 5500M [Discrete]
                                          GPU 2: Intel UHD Graphics 630 @ 1.15 GHz [Integrated]
                                          Memory: 2.42 GiB / 15.51 GiB (16%)
                                          Swap: 0 B / 8.00 GiB (0%)
                                          Disk (/): 5.83 GiB / 91.70 GiB (6%) - btrfs
                                          Locale: en_NZ.UTF-8

Need your help. Thanks in advance.

[sharpenedblade]

Have you tried manually increasing the brightness by writing to the kernel file

[cognitiveRobot]

@sharpenedblade No I didn't. I will try. Can you tell me how to do that exactly? Thanks

[cognitiveRobot]

thanks for the tip, yeah manually writing to the kernel file works for backlight. Then I found actually issue is in the touchpad where toggle for media and function keys also not working after suspend. I will try tiny-dfr. Any other tips? Thanks again.