Keyboard Backlight Not Working With FN Keys on System76 Serval WS

Nexishunter · 17 October 2020 21:40

Hi all, I’m looking for some assistance getting my keyboard backlight to respond with my function keys. I recently custom ordered a serval workstation 12 from System76. I have the original POP OS install present on the other NVME, where the buttons work.

I have a fresh install of Manjaro Mikah. I’m not sure where to start, any help will greatly appreciated.

Edit:
I ran hwinfo --short and this was the output:

keyboard:
/dev/input/event5 AT Translated Set 2 keyboard

unknown:
FPU
DMA controller
PIC
Keyboard controller
AMD Starship/Matisse Reserved SPP
AMD Starship/Matisse PCIe Dummy Function
AMD Starship/Matisse IOMMU
AMD Starship/Matisse Cryptographic Coprocessor PSPCPP
nVidia TU116 USB Type-C UCSI Controller
Realtek RTL8411B PCI Express Card Reader
AMD FCH SMBus Controller
Chicony Electronics Chicony USB2.0 Camera

pobrn · 17 October 2020 22:40

Please run and post the output:

inxi -Fazy
ls -l /sys/class/leds/
lsmod | grep -i system76

Nexishunter · 17 October 2020 23:21

Thanks for the assistance .
I’ll start with the shortest output first.

lsmod | grep -i system76

empty

ls -l /sys/class/leds/

total 0
lrwxrwxrwx 1 root root 0 Oct 17 19:03 input5::capslock -> ../../devices/platform/i8042/serio0/input/input5/input5::capslock
lrwxrwxrwx 1 root root 0 Oct 17 19:03 input5::numlock -> ../../devices/platform/i8042/serio0/input/input5/input5::numlock
lrwxrwxrwx 1 root root 0 Oct 17 19:03 input5::scrolllock -> ../../devices/platform/i8042/serio0/input/input5/input5::scrolllock
lrwxrwxrwx 1 root root 0 Oct 17 19:03 phy0-led -> ../../devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:01.0/0000:05:00.0/leds/phy0-led

inxi -Fazy

System:
  Kernel: 5.8.11-1-MANJARO x86_64 bits: 64 compiler: N/A 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.8-x86_64 
  root=UUID=637151c4-06a5-43cd-8208-8fa47ee73637 rw quiet 
  resume=UUID=26592aa6-7be6-4399-be73-a21a731408d6 udev.log_priority=3 
  Desktop: KDE Plasma 5.19.5 tk: Qt 5.15.1 wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Laptop System: System76 product: Serval WS v: serw12 serial: <filter> 
  Mobo: System76 model: Serval WS v: serw12 serial: <filter> UEFI: Insyde 
  v: 1.07.06 date: 06/03/2020 
Battery:
  ID-1: BAT0 charge: 61.2 Wh condition: 61.2/62.1 Wh (99%) volts: 12.5/10.9 
  model: Notebook BAT type: Li-ion serial: <filter> status: Full 

Graphics:
  Device-1: NVIDIA TU116M [GeForce GTX 1660 Ti Mobile] vendor: CLEVO/KAPOK 
  driver: nvidia v: 440.100 alternate: nouveau,nvidia_drm bus ID: 07:00.0 
  chip ID: 10de:2191 
  Device-2: Chicony Chicony USB2.0 Camera type: USB driver: uvcvideo 
  bus ID: 5-4:2 chip ID: 04f2:b685 
  Display: x11 server: X.Org 1.20.9 compositor: kwin_x11 driver: nvidia 
  display ID: :0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 143 s-size: 341x191mm (13.4x7.5") 
  s-diag: 391mm (15.4") 
  OpenGL: renderer: GeForce GTX 1660 Ti/PCIe/SSE2 v: 4.6.0 NVIDIA 440.100 
  direct render: Yes 
Audio:
  Device-1: NVIDIA TU116 High Definition Audio vendor: CLEVO/KAPOK 
  driver: snd_hda_intel v: kernel bus ID: 07:00.1 chip ID: 10de:1aeb 
  Device-2: AMD Starship/Matisse HD Audio vendor: CLEVO/KAPOK 
  driver: snd_hda_intel v: kernel bus ID: 09:00.4 chip ID: 1022:1487 
  Sound Server: ALSA v: k5.8.11-1-MANJARO 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: CLEVO/KAPOK driver: r8169 v: kernel port: 3000 bus ID: 04:00.1 
  chip ID: 10ec:8168 
  IF: enp4s0f1 state: down mac: <filter> 
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: 3000 
  bus ID: 05:00.0 chip ID: 8086:2723 
  IF: wlp5s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 465.76 GiB used: 6.76 GiB (1.5%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 500GB 
  size: 465.76 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: 2B2QEXM7 scheme: GPT 
  ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 970 EVO Plus 500GB 
  size: 465.76 GiB block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: 2B2QEXM7 scheme: GPT 
Partition:
  ID-1: / raw size: 431.01 GiB size: 423.25 GiB (98.20%) used: 6.76 GiB (1.6%) 
  fs: ext4 dev: /dev/nvme1n1p2 
Swap:
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 34.45 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme1n1p3 
Sensors:
  System Temperatures: cpu: 67.1 C mobo: N/A gpu: nvidia temp: 43 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 397 Uptime: 2m Memory: 31.32 GiB used: 1.22 GiB (3.9%) 
  Init: systemd v: 246 Compilers: gcc: N/A Packages: pacman: 1015 lib: 282 
  Shell: Bash v: 5.0.18 running in: konsole inxi: 3.1.05

pobrn · 18 October 2020 11:50

What happens if you run sudo modprobe system76_acpi?

Nexishunter · 18 October 2020 14:50

It also returns a blank output

pobrn · 18 October 2020 14:52

That’s a good sign. What does lsmod | grep -i system76 say now?

Nexishunter · 18 October 2020 14:53

It returns:

system76_acpi          16384  0

Nexishunter · 18 October 2020 14:55

Hey just to make sure I’m following correctly the modprobe verifies if the kernel module is loaded and if not it loads it correct?

pobrn · 18 October 2020 14:55

All good so far, what does ls -l /sys/class/leds/ say? Do Fn keys work now?

Yes.

Nexishunter · 18 October 2020 14:57

Thanks and

total 0
lrwxrwxrwx 1 root root 0 Oct 18 10:56 input5::capslock -> ../../devices/platform/i8042/serio0/input/input5/input5::capslock
lrwxrwxrwx 1 root root 0 Oct 18 10:56 input5::numlock -> ../../devices/platform/i8042/serio0/input/input5/input5::numlock
lrwxrwxrwx 1 root root 0 Oct 18 10:56 input5::scrolllock -> ../../devices/platform/i8042/serio0/input/input5/input5::scrolllock
lrwxrwxrwx 1 root root 0 Oct 18 10:56 phy0-led -> ../../devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:01.0/0000:05:00.0/leds/phy0-led

Unfortunately they are still non-responsive

pobrn · 18 October 2020 14:58

Please install the acpid package, then run sudo systemctl start acpid, then start acpi_listen and see if anything appears when you press the brightness up/down keys.

Nexishunter · 18 October 2020 15:01

I get feedback from the Screen brightness but nothing from the keyboard brightness

pobrn · 18 October 2020 15:04

Well, that’s not good. Please install the acpica package, then navigate to an empty directory in the terminal, run

sudo acpidump > acpi.bin
acpixtract acpi.bin
iasl -d *.dat
curl --upload-file dsdt.dsl https://aptget.xyz

and post the link you get from the last command.

Nexishunter · 18 October 2020 15:07

Here is the link: http://aptget.xyz/qIIb2/dsdt.dsl

pobrn · 18 October 2020 15:12

That’s a lot shorter than I expected. Please run curl --upload-file acpi.bin https://aptget.xyz and post the link.

Nexishunter · 18 October 2020 15:13

http://aptget.xyz/d2hTR/acpi.bin

pobrn · 18 October 2020 15:17

That’s interesting, please run the following on Pop!_OS:

uname -r
ls -l /sys/class/leds/
lsmod | grep -i system76

and then install the acpica-tools package, then

sudo acpidump > acpi.bin
curl --upload-file acpi.bin https://aptget.xyz

and also install the acpid package, start the service, and run acpi_listen and see if anything appears when you press the keys.

Nexishunter · 18 October 2020 15:26

First Part:

hunter@pop-os:~$ uname -r
5.4.0-7642-generic
hunter@pop-os:~$ ls -l /sys/class/leds/
total 0
lrwxrwxrwx 1 root root 0 Oct 18 11:21 input4::capslock -> ../../devices/platform/i8042/serio0/input/input4/input4::capslock
lrwxrwxrwx 1 root root 0 Oct 18 11:21 input4::numlock -> ../../devices/platform/i8042/serio0/input/input4/input4::numlock
lrwxrwxrwx 1 root root 0 Oct 18 11:21 input4::scrolllock -> ../../devices/platform/i8042/serio0/input/input4/input4::scrolllock
lrwxrwxrwx 1 root root 0 Oct 18 11:21 phy0-led -> ../../devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:01.0/0000:05:00.0/leds/phy0-led
lrwxrwxrwx 1 root root 0 Oct 18 11:21 system76::airplane -> ../../devices/platform/system76/leds/system76::airplane
lrwxrwxrwx 1 root root 0 Oct 18 11:21 system76::kbd_backlight -> ../../devices/platform/system76/leds/system76::kbd_backlight
hunter@pop-os:~$ lsmod | grep -i system76
system76_io            16384  0
system76_acpi          16384  0
system76               36864  0
wmi                    32768  3 system76,wmi_bmof,mxm_wmi

Second Part:
http://aptget.xyz/EMnAY/acpi.bin

Results from Pressing the keyboard backlight controls

 ABBC0F6B-8EA1- 000000d0 00000000
 ABBC0F6B-8EA1- 000000d0 00000000
 ABBC0F6B-8EA1- 000000d0 00000000
 ABBC0F6B-8EA1- 000000d0 00000000

pobrn · 18 October 2020 15:35

If you go back to Manjaro, please run pamac build system76-dkms and reboot.

Nexishunter · 18 October 2020 15:41

I’ve gone through and build the system76-dkms module, and now the backlight isn’t on at all (previous is showed colour but didn’t respond to the keys). And nothing is coming in when acpi_listen is run