[BUG] Dell G16 7620 Keyboard colors not working

[JL2210]

Device Info

• Device Name: Dell G16 7620
• CPU Name: 12th Gen Intel(R) Core(TM) i7-12700H
• Kernel version: 6.19.11-arch1-1.1 (ALHP x86_64-v3)
• OS: Arch Linux

Describe the bug
Setting keyboard color does not work. Brightness is fine.

Resources:

Device Name: Dell G16 7620
Testing thermal modes...

0xa0 -> 0x0 (Balanced)
0xa1 -> 0x0 (Performance)
0xa2 -> -0x1 (Cool)
0xa3 -> 0x0 (Quiet)
0xa4 -> -0x1 (Full Speed)
0xa5 -> 0x0 (Battery Saver)
0xa6 -> -0x1 (Unknown)
0xa7 -> -0x1 (Unknown)
0xa8 -> -0x1 (Unknown)
0xa9 -> -0x1 (Unknown)
0xaa -> -0x1 (Unknown)
0xab -> 0x0 (G-Mode)

Generated thermal modes bitmap for database.json:
"thermalModes": "11001111"

Reverting to balanced.

• Output of systemctl status awccd.service

● awccd.service - Alienware Command Centre Daemon
     Loaded: loaded (/etc/systemd/system/awccd.service; enabled; preset: disabled)
     Active: active (running) since Sat 2026-04-18 21:07:12 EDT; 11min ago
 Invocation: 424f03d6858b4bad89c05a2bff35894d
       Docs: https://github.com/tr1xem/AWCC
    Process: 1014 ExecStartPre=/usr/bin/rm -f /tmp/awcc.sock (code=exited, status=0/SUCCESS)
   Main PID: 1017 (awcc)
      Tasks: 3 (limit: 18663)
     Memory: 6.3M (peak: 10M)
        CPU: 2.516s
     CGroup: /system.slice/awccd.service
             └─1017 /usr/bin/awcc -d -v

Apr 18 21:17:44 WileECoyote pkexec[4764]: root: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/bin/sh -c echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0xa4,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call]
Apr 18 21:17:44 WileECoyote awcc[1017]: 2026-04-18 21:17:44.959 ( 632.913s) [        232B52C0]             Daemon.cpp:244   INFO| Executing command: pkexec sh -c 'echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0xab,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call'
Apr 18 21:17:44 WileECoyote pkexec[4768]: pam_unix(polkit-1:session): session opened for user root(uid=0) by (uid=0)
Apr 18 21:17:44 WileECoyote pkexec[4768]: root: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/bin/sh -c echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0xab,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call]
Apr 18 21:17:45 WileECoyote awcc[1017]: 2026-04-18 21:17:45.002 ( 632.956s) [        232B52C0]             Daemon.cpp:244   INFO| Executing command: pkexec sh -c 'echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0x0,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call'
Apr 18 21:17:45 WileECoyote pkexec[4772]: pam_unix(polkit-1:session): session opened for user root(uid=0) by (uid=0)
Apr 18 21:17:45 WileECoyote pkexec[4772]: root: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/bin/sh -c echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0x0,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call]
Apr 18 21:17:45 WileECoyote awcc[1017]: 2026-04-18 21:17:45.037 ( 632.991s) [        232B52C0]             Daemon.cpp:244   INFO| Executing command: pkexec sh -c 'echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0xa0,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call'
Apr 18 21:17:45 WileECoyote pkexec[4777]: pam_unix(polkit-1:session): session opened for user root(uid=0) by (uid=0)
Apr 18 21:17:45 WileECoyote pkexec[4777]: root: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/bin/sh -c echo "\_SB.AMWW.WMAX 0 0x15 {0x1,0xa0,0x0,0x00}" > /proc/acpi/call && cat /proc/acpi/call]

• Output of lsmod | grep -E 'alienware_wmi|acpi_call'

alienware_wmi          45056  0
platform_profile       24576  3 alienware_wmi,dell_pc,processor_thermal_soc_slider
acpi_call              20480  0
wmi                    36864  10 dell_wmi_sysman,video,nvidia_wmi_ec_backlight,dell_wmi_ddv,alienware_wmi,dell_wmi,wmi_bmof,dell_smm_hwmon,dell_smbios,dell_wmi_descriptor

• Attach the acpi-dump here.
  acpidump.txt

Additional context

Other stuff: dumped/decompiled MOF data, decompiled acpidump, etc. from when I was working on this
hwstuff.zip

Dell G-Series Controller works fine

lsusb:

Bus 003 Device 003: ID 187c:0550 Alienware Corporation LED controller

[tr1xem]

Currently I have put all of the stuff in https://github.com/tr1xem/alienfx-linux which would have a gui interface in AWCC for now u can use it

# Good News!!! 

alienfx-sdk is completed


[alienfx_cli.zip](https://github.com/user-attachments/files/25568124/alienfx_cli.zip)

Here is a stable build of alienfx-cli 

Completion of alienfx-sdk means now every light device is supported :) (would be added in gui soon) 

For now if u want to configure any device you have to run `HOME=/home/username sudo ./alienfx_cli probe` And configure + probe all ur device (this time it would save it to config files

Once done u can see ur devices by running `./alienfx_cli status` which would output


Device #0 - Alienware AW-ELC, VID#6268, PID#1361, APIv4, 4 lights
  Light ID#0 - Left
  Light ID#1 - Middle Left
  Light ID#2 - Middle Right
  Light ID#3 - Right

More devices in ur case

And then u can use any of the function of alienfx-cli 
Example: To set all lights to red i would do `./alienfx_cli setall 255 0 0` and every light would be red 


Currently all device in windows version are supported (except some acpi device)

More Info at: https://github.com/tr1xem/alienfx-linux/

** To Check if device is still hanging on probe **


Added Create Zone command 

Now u can create ur custom zone of any light type 

Example:

 I wanna make WASD key change colour together i can create a zone and then directly change color of that zone


❮ ./alienfx_cli status
2026-02-28 18:25:11.404 (   0.013s) [        CB3267C0]               main.cpp:42    INFO| 1 low-level devices found.
Device #0 - Alienware AW-ELC, VID#0x187c, PID#0x551, APIv4, 4 lights
  Light ID#0 - Left
  Light ID#1 - Middle Left
  Light ID#2 - Middle Right
  Light ID#3 - Right
5 zones:
  Zone #1 (1 lights) - left
  Zone #2 (1 lights) - middle_left
  Zone #3 (1 lights) - middle_right
  Zone #4 (1 lights) - right
  Zone #5 (4 lights) - all


Like this

here are steps