I can't press W+SHIFT+SPACE at the same time

justanormalarchlinuxuser · 2025-02-14 17:23:09

STATUS: DOUBTS REMAINED
Hello, I recently started in arch linux and I have had this problem since I installed it, I am someone who plays games and these keys are very important in games, I recently noticed that my system for some reason when I press W+SHIFT+SPACE does not work, I have done an evtest in case you need it to help me

Properties:
Testing ... (interrupt to exit)
Event: time 1739500642.743864, type 4 (EV_MSC), code 4 (MSC_SCAN), value 70028
Event: time 1739500642.743864, type 1 (EV_KEY), code 28 (KEY_ENTER), value 0
Event: time 1739500642.743864, -------------- SYN_REPORT ------------
Event: time 1739500649.640050, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7001a
Event: time 1739500649.640050, type 1 (EV_KEY), code 17 (KEY_W), value 1
Event: time 1739500649.640050, -------------- SYN_REPORT ------------
wEvent: time 1739500649.893934, type 1 (EV_KEY), code 17 (KEY_W), value 2
Event: time 1739500649.893934, -------------- SYN_REPORT ------------
Event: time 1739500649.927966, type 1 (EV_KEY), code 17 (KEY_W), value 2
Event: time 1739500649.927966, -------------- SYN_REPORT ------------
Event: time 1739500649.944041, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e1
Event: time 1739500649.944041, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT), value 1
Event: time 1739500649.944041, -------------- SYN_REPORT ------------
Event: time 1739500650.197930, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT), value 2
Event: time 1739500650.197930, -------------- SYN_REPORT ------------
Event: time 1739500650.200109, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e1
Event: time 1739500650.200109, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT), value 0
Event: time 1739500650.200109, -------------- SYN_REPORT ------------
wwwwwwwwwwwEvent: time 1739500650.664035, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e1
Event: time 1739500650.664035, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT), value 1
Event: time 1739500650.664035, -------------- SYN_REPORT ------------
wEvent: time 1739500650.696098, type 4 (EV_MSC), code 4 (MSC_SCAN), value 700e1
Event: time 1739500650.696098, type 1 (EV_KEY), code 42 (KEY_LEFTSHIFT), value 0
Event: time 1739500650.696098, -------------- SYN_REPORT ------------
Event: time 1739500650.712076, type 4 (EV_MSC), code 4 (MSC_SCAN), value 7001a
Event: time 1739500650.712076, type 1 (EV_KEY), code 17 (KEY_W), value 0
Event: time 1739500650.712076, -------------- SYN_REPORT ------------

just ignore the enter key I did it unintentionally, if you notice there is "w" or "wwwwww" in some parts, it is not an error that copy and paste, that just happens, the truth is I don't know what happens, with other keys they do work, I press S+SHIFT+SPACE i go and it works with A and D but not with W specifically, idk what to do :(

Last edited by justanormalarchlinuxuser (2025-02-16 20:29:14)

seth · 2025-02-14 20:49:28

Please use [code][/code] tags. Edit your post in this regard.

Does this work on any other OS (live distro like grml, windows, whatever)?
Does it work w/ a different keyboard?

https://en.wikipedia.org/wiki/Key_rollover

justanormalarchlinuxuser · 2025-02-14 21:26:50

Blank

Last edited by justanormalarchlinuxuser (2025-02-14 23:31:39)

justanormalarchlinuxuser · 2025-02-14 23:31:25

seth wrote:

Please use [code][/code] tags. Edit your post in this regard.
Does this work on any other OS (live distro like grml, windows, whatever)?
Does it work w/ a different keyboard?
https://en.wikipedia.org/wiki/Key_rollover

Idk how to use those commands sorry
Before I switched to Arch, Debian and Windows allowed me to use those combinations
Nope, it doesn't leave me with other keyboards, on top of that I tried 3 different keyboards

mytArch · 2025-02-15 06:51:20

use the tags like html tags e.g. "["code]Testing ... (interrupt to exit) ... "["/code] (without the quotes) to get

Testing ... (interrupt to exit) ...

Last edited by mytArch (2025-02-15 06:52:29)

seth · 2025-02-15 08:47:22

Not "before", *now*. Things work and then they're broken - that's life.

Your evtest logs shows you pressing w, then shift, then releasing shift, then pressing shift, then releasing w.
There's no record of the space key *at all*, not even while shift wa released.

You can also test the LTS kernel, but there's no weird-ass NKRO restriction in the kernel, let alone distro specific.

Pot. causes in likely order:
- broken keyboard
- lousy keyboard
- interference from another input device (webcams and bt headphones pose as keyboard and may genereate spurious input, try "libinput debug-events" whether there's noise)
- layer 8 (too many energy drinks make your fingers judder…)
- something else
- bug/regression in the 6.13 kernel/some module

justanormalarchlinuxuser · 2025-02-15 18:43:54

mytArch wrote:

use the tags like html tags e.g. "["code]Testing ... (interrupt to exit) ... "["/code] (without the quotes) to get
Testing ... (interrupt to exit) ... 

Ok, thanks

justanormalarchlinuxuser · 2025-02-15 18:44:55

seth wrote:

Not "before", *now*. Things work and then they're broken - that's life.
Your evtest logs shows you pressing w, then shift, then releasing shift, then pressing shift, then releasing w.
There's no record of the space key *at all*, not even while shift wa released.
You can also test the LTS kernel, but there's no weird-ass NKRO restriction in the kernel, let alone distro specific.
Pot. causes in likely order:
- broken keyboard
- lousy keyboard
- interference from another input device (webcams and bt headphones pose as keyboard and may genereate spurious input, try "libinput debug-events" whether there's noise)
- layer 8 (too many energy drinks make your fingers judder…)
- something else
- bug/regression in the 6.13 kernel/some module

Well, I'll try the LTS kernel and see if it's the current kernel problem
Oh and i tried the "libinput debug-events", and also press the same key combination but the WWWW continue to be placed

-event2   DEVICE_ADDED                Power Button                      seat0 default group1  cap:k
-event7   DEVICE_ADDED                Video Bus                         seat0 default group2  cap:k
-event1   DEVICE_ADDED                Power Button                      seat0 default group3  cap:k
-event0   DEVICE_ADDED                Sleep Button                      seat0 default group4  cap:k
-event3   DEVICE_ADDED                PixArt Dell MS116 USB Optical Mouse seat0 default group5  cap:p left scroll-nat scroll-button
-event4   DEVICE_ADDED                Dell KB216 Wired Keyboard         seat0 default group6  cap:k
-event5   DEVICE_ADDED                Dell KB216 Wired Keyboard System Control seat0 default group6  cap:k
-event6   DEVICE_ADDED                Dell KB216 Wired Keyboard Consumer Control seat0 default group6  cap:k
-event4   KEYBOARD_KEY                +0.000s   *** (-1) pressed
 event4   KEYBOARD_KEY                +0.240s   *** (-1) pressed
W event4   KEYBOARD_KEY                +0.512s  *** (-1) released
 event4   KEYBOARD_KEY                +0.736s   *** (-1) pressed
 event4   KEYBOARD_KEY                +0.768s   *** (-1) released
 event4   KEYBOARD_KEY                +0.816s   *** (-1) released

I use the Dell KB216 Wired Keyboard btw

Edit: In lts it doesn't work either, it's the 6.12.13-1-lts kernel

Last edited by justanormalarchlinuxuser (2025-02-15 19:10:17)

seth · 2025-02-15 21:40:59

I use the Dell KB216 Wired Keyboard btw

You suggested other rkeyboard were affected? Have you tried the *current* behavior of some live distro?

On a formal note, please avoid bloating the thread with pointless full-quotes, we can all still see the previous posts.

justanormalarchlinuxuser · 2025-02-16 02:35:20

no, in other distros it doesn't work, now I feel embarrassed because I think it's my keyboard, that which I tried with others and that combination didn't work either, I tried Debian Live and the same, sorry if this was a confusion :s

seth · 2025-02-16 08:41:40

seth almost wrote:

You suggested other keyboards were affected?

Is this not the case?
Does the order of presses matter (shift+w+space instead of w+shift+space)?

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

justanormalarchlinuxuser · 2025-02-16 20:25:15

Well, I don't really know if my keyboards are wrong or the kernel, they are membrane and I think I should try mechanical keyboards to see if that happens, in any case I will update the status of this post

justanormalarchlinuxuser · 2025-02-16 20:25:48

blank, i made a mistake

Last edited by justanormalarchlinuxuser (2025-02-16 20:26:57)

Arch Linux

#1 2025-02-14 17:23:09

I can't press W+SHIFT+SPACE at the same time

#2 2025-02-14 20:49:28

Re: I can't press W+SHIFT+SPACE at the same time

#3 2025-02-14 21:26:50

Re: I can't press W+SHIFT+SPACE at the same time

#4 2025-02-14 23:31:25

Re: I can't press W+SHIFT+SPACE at the same time

#5 2025-02-15 06:51:20

Re: I can't press W+SHIFT+SPACE at the same time

#6 2025-02-15 08:47:22

Re: I can't press W+SHIFT+SPACE at the same time

#7 2025-02-15 18:43:54

Re: I can't press W+SHIFT+SPACE at the same time

#8 2025-02-15 18:44:55

Re: I can't press W+SHIFT+SPACE at the same time

#9 2025-02-15 21:40:59

Re: I can't press W+SHIFT+SPACE at the same time

#10 2025-02-16 02:35:20

Re: I can't press W+SHIFT+SPACE at the same time

#11 2025-02-16 08:41:40

Re: I can't press W+SHIFT+SPACE at the same time

#12 2025-02-16 20:25:15

Re: I can't press W+SHIFT+SPACE at the same time

#13 2025-02-16 20:25:48

Re: I can't press W+SHIFT+SPACE at the same time

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