Laptop display is turned on when pressing the first key

[tamirzb]

I find this issue a bit strange as I have no idea why/how this happens, but here it goes.

I am using a laptop whose lid is closed and is connected to an external display, therefore the laptop display is off. The first key I type after starting keyd causes the laptop display to turn on. As far as I can tell, this only happens when the laptop display is turned off due to the lid being closed. If I try to open the lid but manually turn off the display, this doesn't happen.

My window manager is sway (wayland) and my keyd config is fairly simple (switch between the ` and the esc keys):

[ids]
05ac:024f

[main]
esc = `
` = esc

Any idea why this happens or how can this be fixed?

[rvaiya]

If this happens immediately after starting keyd (but not otherwise), then my guess is that something in your input stack is responding to the presence of keyd's virtual keyboard (which is probably treats like any other external keyboard). You can test this theory by seeing if the problem also occurs when you plug in an external keyboard. If this is indeed the case, you will probably need to add a libinput quirk.

[tamirzb]

It doesn't happen when I plug in an external keyboard.

Also, note that this doesn't happen when I start keyd, but when I press the first key after starting keyd. Though I'm not sure at what point does keyd actually create the virtual keyboard.

[herrsimon]

So just to understand: You're saying that plugging in a physical keyboard and pressing a key keeps your screen blank, but starting keyd and pressing a key turns it on?

[tamirzb]

Yes, exactly

[rvaiya]

Does this only occur immediately after starting keyd? If you start keyd and press a key before closing your laptop lid, does a subsequent key press cause it to wake up?

It would also help if you could post the output of sudo keyd -m while replicating this behaviour (annotating the output to indicate where the problem occurs).

[tamirzb]

Yes, if I start keyd and press some keys, then close the laptop lid and press a key again I get the same behavior.

Here is the output of sudo keyd -m with annotations of what's happening:

device added: 05ac:024f (Keychron K6)
device added: 046d:c05a (Logitech USB Optical Mouse)
device added: 0000:0000 (DP-4)
device added: 0002:0006 (ImExPS/2 Generic Explorer Mouse)
device added: 093a:0274 (PIXA3854:00 093A:0274 Touchpad)
device added: 093a:0274 (PIXA3854:00 093A:0274 Mouse)
device added: 32ac:0006 (FRMW0001:00 32AC:0006 Consumer Control)
device added: 0001:0001 (AT Translated Set 2 keyboard)
Keychron K6	05ac:024f	up down
Keychron K6	05ac:024f	up up
Keychron K6	05ac:024f	enter down
***** keyd is starting
device added: 0fac:0ade (keyd virtual device)
device added: 0fac:1ade (keyd virtual pointer)
ioctl: Invalid argument
ioctl EVIOCGNAME: Invalid argument
ioctl: Inappropriate ioctl for device
ioctl EVIOCGNAME: Inappropriate ioctl for device
Keychron K6	05ac:024f	enter up
***** I press the enter key
keyd virtual device	0fac:0ade	enter down
***** The laptop display turns on
keyd virtual device	0fac:0ade	enter up

[tamirzb]

Been some time since I tried using keyd so I thought I'd give it another go. Seems like this issue doesn't happen anymore. Still not sure what caused it, but I guess some update to keyd or sway (or something else?) fixed it.