You are not logged in.
## Problem description
The SiGma Micro keyboard (USB KeyBoard) turns off when pressing Fn+F3 (volume up). After that, a physical reconnection is required. HID errors appear in dmesg.
## Steps to reproduce
1. Connect the SiGma Micro keyboard (1c4f:0202)
2. Press Fn+F3 (or another Fn combination)
3. The keyboard stops responding.
4. When reconnecting to dmesg, descriptor errors are visible.
## Information about the system
- Distribution kit: Arch Linux
- Core: 6.16.8-arch2-1
- DE: KDE Plasma on Wayland
- Keyboard Model: SiGma Micro Usb KeyBoard
## Command output
### lsusb:
Bus 001 Device 023: ID 1c4f:0202 SiGma Micro Usb KeyBoard### dmesg:
[ 0.624958] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.0001/input/input2
[ 0.675635] hid-generic 0003:1C4F:0202.0001: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[ 0.678371] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678378] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678384] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678390] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678396] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678401] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678407] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678412] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678418] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678423] hid-generic 0003:1C4F:0202.0002: unknown main item tag 0x0
[ 0.678687] hid-generic 0003:1C4F:0202.0002: unbalanced collection at end of report description
[ 0.678692] hid-generic 0003:1C4F:0202.0002: probe with driver hid-generic failed with error -22
[45451.058090] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.0004/input/input19
[45451.133458] hid-generic 0003:1C4F:0202.0004: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45451.136103] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136110] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136116] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136122] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136128] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136134] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136140] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136145] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136151] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136157] hid-generic 0003:1C4F:0202.0005: unknown main item tag 0x0
[45451.136443] hid-generic 0003:1C4F:0202.0005: unbalanced collection at end of report description
[45451.136449] hid-generic 0003:1C4F:0202.0005: probe with driver hid-generic failed with error -22
[45469.528369] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.0006/input/input20
[45469.604763] hid-generic 0003:1C4F:0202.0006: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45469.607354] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607362] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607368] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607373] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607379] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607385] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607391] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607397] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607402] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607408] hid-generic 0003:1C4F:0202.0007: unknown main item tag 0x0
[45469.607693] hid-generic 0003:1C4F:0202.0007: unbalanced collection at end of report description
[45469.607699] hid-generic 0003:1C4F:0202.0007: probe with driver hid-generic failed with error -22
[45523.146477] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.0008/input/input21
[45523.225623] hid-generic 0003:1C4F:0202.0008: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45523.228308] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228316] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228322] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228328] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228333] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228339] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228345] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228351] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228357] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228362] hid-generic 0003:1C4F:0202.0009: unknown main item tag 0x0
[45523.228652] hid-generic 0003:1C4F:0202.0009: unbalanced collection at end of report description
[45523.228658] hid-generic 0003:1C4F:0202.0009: probe with driver hid-generic failed with error -22
[45679.227926] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.000A/input/input22
[45679.302053] hid-generic 0003:1C4F:0202.000A: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45679.305140] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305148] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305154] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305160] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305165] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305171] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305177] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305183] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305188] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305194] hid-generic 0003:1C4F:0202.000B: unknown main item tag 0x0
[45679.305466] hid-generic 0003:1C4F:0202.000B: unbalanced collection at end of report description
[45679.305472] hid-generic 0003:1C4F:0202.000B: probe with driver hid-generic failed with error -22
[45699.309376] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.000C/input/input23
[45699.386362] hid-generic 0003:1C4F:0202.000C: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45699.389043] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389050] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389056] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389062] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389068] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389074] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389080] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389086] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389091] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389097] hid-generic 0003:1C4F:0202.000D: unknown main item tag 0x0
[45699.389376] hid-generic 0003:1C4F:0202.000D: unbalanced collection at end of report description
[45699.389381] hid-generic 0003:1C4F:0202.000D: probe with driver hid-generic failed with error -22
[45845.073105] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.000E/input/input24
[45845.149707] hid-generic 0003:1C4F:0202.000E: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45845.152424] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152432] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152438] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152444] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152449] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152455] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152461] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152467] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152473] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152478] hid-generic 0003:1C4F:0202.000F: unknown main item tag 0x0
[45845.152757] hid-generic 0003:1C4F:0202.000F: unbalanced collection at end of report description
[45845.152764] hid-generic 0003:1C4F:0202.000F: probe with driver hid-generic failed with error -22
[45966.400610] input: Usb KeyBoard Usb KeyBoard as /devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/0003:1C4F:0202.0010/input/input25
[45966.477654] hid-generic 0003:1C4F:0202.0010: input,hidraw0: USB HID v1.11 Keyboard [Usb KeyBoard Usb KeyBoard] on usb-0000:00:14.0-11/input0
[45966.480733] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480740] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480746] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480752] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480758] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480764] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480770] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480775] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480781] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.480787] hid-generic 0003:1C4F:0202.0011: unknown main item tag 0x0
[45966.481059] hid-generic 0003:1C4F:0202.0011: unbalanced collection at end of report description
[45966.481065] hid-generic 0003:1C4F:0202.0011: probe with driver hid-generic failed with error -22## Additional information
- The problem is reproduced in TTY and graphical environment
- The keyboard works fine before pressing Fn-combinations
- Errors appear every time you reconnect after a failure
## The alleged reason
An incorrect HID keyboard descriptor that the hid-generic driver cannot process.
Offline