Red Hat Bugzilla – Bug 1265478
Keyboard scroll lock key only works during plymouth loading screen
Last modified: 2017-08-08 08:15:41 EDT
Description of problem:
When booting Fedora 22, the scroll lock key works. This is most important because this key also functions as the LED backlight toggle. When the plymouth boot screen has finished, the scroll lock button no longer works.
Does not work after boot when using Wayland or X11.
Version-Release number of selected component (if applicable):
Cooler Master CMStorm Devastator
Steps to Reproduce:
1. Turn on computer
2. Wait for plymouth boot screen
3. Press the scroll lock key constantly
4. Watch backlight LEDs turn on and off with each press
5. Wait for after boot screen
6. Press scroll lock key again
7. Watch as the LEDs do not turn on
Backlight LEDs do not turn on
Backlight LEDs to turn on
Output from dmesg regarding the device:
[ 2.867056] usb 5-2: New USB device found, idVendor=258a, idProduct=0001
[ 2.867058] usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.867059] usb 5-2: Product: USB KEYBOARD
[ 2.867060] usb 5-2: Manufacturer: SINO WEALTH
[ 2.875353] input: SINO WEALTH USB KEYBOARD as /devices/pci0000:00/0000:00:12.0/usb5/5-2/5-2:1.0/0003:258A:0001.0003/input/input6
[ 2.926182] hid-generic 0003:258A:0001.0003: input,hidraw2: USB HID v1.10 Keyboard [SINO WEALTH USB KEYBOARD] on usb-0000:00:12.0-2/input0
[ 2.938207] input: SINO WEALTH USB KEYBOARD as /devices/pci0000:00/0000:00:12.0/usb5/5-2/5-2:1.1/0003:258A:0001.0004/input/input7
[ 2.989311] hid-generic 0003:258A:0001.0004: input,hiddev0,hidraw3: USB HID v1.10 Device [SINO WEALTH USB KEYBOARD] on usb-0000:00:12.0-2/input1
This is a keyboard.
Fedora 22 - Gnome - 64 Bit - Updated ~15 minutes ago
not sure what could be in libinput that stops this from working. If you boot to a VT does it still work?
Just checked, and it looks like when booting to a VT, it does work.
For X11, you can use xset led 3 to turn on the backlight. I do not see a way to change this in wayland at the moment.
Update: xset led 3 no longer works on X11, so I have no backlight anymore :(
Is there anything I can do to further diagnose this?
run evemu-record against the various keyboard devices, check if there's anything showing up when you press that key. if so, then it's a userspace problem.
Yeah it looks like a user space problem as far as I can tell.
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