Hi everyone!
I'd like to ask for a little help here.
I'm fighting with Macbook Air 6,1 (late 2013) for a week now, and I'm kind of stuck.
Everything is working (wifi, camera, suspend/resume) but keyboard backlight. Actually, it works
when I'm writing 0-255 to /sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness, but...
I can't change keyboard's brightness with F5-F6 keys.
I can change screen's brightness with F1-F2, I can change volume with F11-F12, but F5 and F6
just don't work and don't change keyboard's brigthness. All I can see on a screen when I'm pressing F5-F6 is an icon
of keyboard's backlight, but it won't change.
I saw a lot of recipes on internet about writing scripts with "echo > /sys/devices/.../smc::kbd_backlight/brightness",
but it turned out, that other distributions (Fedora, Ubuntu, OpenSUSE) works without those scripts "out of the box".
Could anyone please tell me where to start looking? I have no idea which piece of software handles Fn-keys? Is it udev, systemd, xorg?
Why Fedora, Ubuntu and OpenSUSE work? I kind of think that I'm missing one single string somewhere in some config, but I don't know where...
Thank in advance,
I use:
- Debian buster/sid with latest updates
- Gnome 3 desktop install (tried with xorg and with wayland)
- linux-image-4.17.0-3-amd64-4.17.17-1
- lspci:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:15.0 DMA controller: Intel Corporation 8 Series Low Power Sub-System DMA (rev 04)
00:15.4 Serial bus controller [0c80]: Intel Corporation 8 Series SPI Controller #1 (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1c.5 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev e4)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
02:00.0 Multimedia controller: Broadcom Limited 720p FaceTime HD Camera
03:00.0 Network controller: Broadcom Limited BCM4360 802.11ac Wireless Network Adapter (rev 03)
04:00.0 SATA controller: Marvell Technology Group Ltd. 88SS9183 PCIe SSD Controller (rev 14)
05:00.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
06:00.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
06:03.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
06:04.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
06:05.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
06:06.0 PCI bridge: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
07:00.0 System peripheral: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge 4C 2012] (rev 03)
- lsmod |grep apple
hid_apple 16384 0
applesmc 24576 0
input_polldev 16384 1 applesmc
apple_bl 16384 0
- xinput:
cat /tmp/111
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:15 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:15 id=7 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ xwayland-keyboard:15 id=8 [slave keyboard (3)]
- ls -1 /sys/class/leds/
input10::capslock
input10::compose
input10::kana
input10::numlock
input10::scrolllock
smc::kbd_backlight