Can confirm, this issue still exists in plasma 6

Can confirm on wayland, master

Actually could you provide the output of `xmodmap -pke`? KDE cannot handle keys not defined in the keyboard mapping, and I think that is causing the issue.

I don't see F24 here, however I don't see F13-F23 either but I can map those to shortcuts anyway.
Those keycodes could be defined as XF86Whatever but I am not sure about that.

$ xmodmap -pke
keycode   8 =
keycode   9 = Escape NoSymbol Escape
keycode  10 = 1 exclam 1 exclam
keycode  11 = 2 at 2 quotedbl
keycode  12 = 3 numbersign 3 numerosign
keycode  13 = 4 dollar 4 semicolon
keycode  14 = 5 percent 5 percent
keycode  15 = 6 asciicircum 6 colon
keycode  16 = 7 ampersand 7 question
keycode  17 = 8 asterisk 8 asterisk U20BD
keycode  18 = 9 parenleft 9 parenleft
keycode  19 = 0 parenright 0 parenright
keycode  20 = minus underscore minus underscore
keycode  21 = equal plus equal plus
keycode  22 = BackSpace BackSpace BackSpace BackSpace NoSymbol NoSymbol Terminate_Server NoSymbol NoSymbol Terminate_Server
keycode  23 = Tab ISO_Left_Tab Tab ISO_Left_Tab
keycode  24 = q Q Cyrillic_shorti Cyrillic_SHORTI
keycode  25 = w W Cyrillic_tse Cyrillic_TSE
keycode  26 = e E Cyrillic_u Cyrillic_U
keycode  27 = r R Cyrillic_ka Cyrillic_KA
keycode  28 = t T Cyrillic_ie Cyrillic_IE
keycode  29 = y Y Cyrillic_en Cyrillic_EN
keycode  30 = u U Cyrillic_ghe Cyrillic_GHE
keycode  31 = i I Cyrillic_sha Cyrillic_SHA
keycode  32 = o O Cyrillic_shcha Cyrillic_SHCHA
keycode  33 = p P Cyrillic_ze Cyrillic_ZE
keycode  34 = bracketleft braceleft Cyrillic_ha Cyrillic_HA
keycode  35 = bracketright braceright Cyrillic_hardsign Cyrillic_HARDSIGN
keycode  36 = Return NoSymbol Return
keycode  37 = Control_L NoSymbol Control_L
keycode  38 = a A Cyrillic_ef Cyrillic_EF
keycode  39 = s S Cyrillic_yeru Cyrillic_YERU
keycode  40 = d D Cyrillic_ve Cyrillic_VE
keycode  41 = f F Cyrillic_a Cyrillic_A
keycode  42 = g G Cyrillic_pe Cyrillic_PE
keycode  43 = h H Cyrillic_er Cyrillic_ER
keycode  44 = j J Cyrillic_o Cyrillic_O
keycode  45 = k K Cyrillic_el Cyrillic_EL
keycode  46 = l L Cyrillic_de Cyrillic_DE
keycode  47 = semicolon colon Cyrillic_zhe Cyrillic_ZHE
keycode  48 = apostrophe quotedbl Cyrillic_e Cyrillic_E
keycode  49 = grave asciitilde Cyrillic_io Cyrillic_IO
keycode  50 = Shift_L NoSymbol Shift_L
keycode  51 = backslash bar backslash slash
keycode  52 = z Z Cyrillic_ya Cyrillic_YA
keycode  53 = x X Cyrillic_che Cyrillic_CHE
keycode  54 = c C Cyrillic_es Cyrillic_ES
keycode  55 = v V Cyrillic_em Cyrillic_EM
keycode  56 = b B Cyrillic_i Cyrillic_I
keycode  57 = n N Cyrillic_te Cyrillic_TE
keycode  58 = m M Cyrillic_softsign Cyrillic_SOFTSIGN
keycode  59 = comma less Cyrillic_be Cyrillic_BE
keycode  60 = period greater Cyrillic_yu Cyrillic_YU
keycode  61 = slash question period comma
keycode  62 = Shift_R NoSymbol Shift_R
keycode  63 = KP_Multiply KP_Multiply KP_Multiply KP_Multiply KP_Multiply KP_Multiply XF86ClearGrab KP_Multiply KP_Multiply XF86ClearGrab
keycode  64 = Alt_L Meta_L Alt_L Meta_L
keycode  65 = space NoSymbol space
keycode  66 = ISO_Next_Group Caps_Lock ISO_Next_Group Caps_Lock
keycode  67 = F1 F1 F1 F1 F1 F1 XF86Switch_VT_1 F1 F1 XF86Switch_VT_1
keycode  68 = F2 F2 F2 F2 F2 F2 XF86Switch_VT_2 F2 F2 XF86Switch_VT_2
keycode  69 = F3 F3 F3 F3 F3 F3 XF86Switch_VT_3 F3 F3 XF86Switch_VT_3
keycode  70 = F4 F4 F4 F4 F4 F4 XF86Switch_VT_4 F4 F4 XF86Switch_VT_4
keycode  71 = F5 F5 F5 F5 F5 F5 XF86Switch_VT_5 F5 F5 XF86Switch_VT_5
keycode  72 = F6 F6 F6 F6 F6 F6 XF86Switch_VT_6 F6 F6 XF86Switch_VT_6
keycode  73 = F7 F7 F7 F7 F7 F7 XF86Switch_VT_7 F7 F7 XF86Switch_VT_7
keycode  74 = F8 F8 F8 F8 F8 F8 XF86Switch_VT_8 F8 F8 XF86Switch_VT_8
keycode  75 = F9 F9 F9 F9 F9 F9 XF86Switch_VT_9 F9 F9 XF86Switch_VT_9
keycode  76 = F10 F10 F10 F10 F10 F10 XF86Switch_VT_10 F10 F10 XF86Switch_VT_10
keycode  77 = Num_Lock NoSymbol Num_Lock
keycode  78 = Scroll_Lock NoSymbol Scroll_Lock
keycode  79 = KP_Home KP_7 KP_Home KP_7
keycode  80 = KP_Up KP_8 KP_Up KP_8
keycode  81 = KP_Prior KP_9 KP_Prior KP_9
keycode  82 = KP_Subtract KP_Subtract KP_Subtract KP_Subtract KP_Subtract KP_Subtract XF86Prev_VMode KP_Subtract KP_Subtract XF86Prev_VMode
keycode  83 = KP_Left KP_4 KP_Left KP_4
keycode  84 = KP_Begin KP_5 KP_Begin KP_5
keycode  85 = KP_Right KP_6 KP_Right KP_6
keycode  86 = KP_Add KP_Add KP_Add KP_Add KP_Add KP_Add XF86Next_VMode KP_Add KP_Add XF86Next_VMode
keycode  87 = KP_End KP_1 KP_End KP_1
keycode  88 = KP_Down KP_2 KP_Down KP_2
keycode  89 = KP_Next KP_3 KP_Next KP_3
keycode  90 = KP_Insert KP_0 KP_Insert KP_0
keycode  91 = KP_Delete KP_Decimal KP_Delete KP_Separator
keycode  92 = ISO_Level3_Shift NoSymbol ISO_Level3_Shift
keycode  93 =
keycode  94 = less greater slash bar bar brokenbar
keycode  95 = F11 F11 F11 F11 F11 F11 XF86Switch_VT_11 F11 F11 XF86Switch_VT_11
keycode  96 = F12 F12 F12 F12 F12 F12 XF86Switch_VT_12 F12 F12 XF86Switch_VT_12
keycode  97 =
keycode  98 = Katakana NoSymbol Katakana
keycode  99 = Hiragana NoSymbol Hiragana
keycode 100 = Henkan_Mode NoSymbol Henkan_Mode
keycode 101 = Hiragana_Katakana NoSymbol Hiragana_Katakana
keycode 102 = Muhenkan NoSymbol Muhenkan
keycode 103 =
keycode 104 = KP_Enter NoSymbol KP_Enter
keycode 105 = Control_R NoSymbol Control_R
keycode 106 = KP_Divide KP_Divide KP_Divide KP_Divide KP_Divide KP_Divide XF86Ungrab KP_Divide KP_Divide XF86Ungrab
keycode 107 = Print Sys_Req Print Sys_Req
keycode 108 = Alt_R Meta_R Alt_R Meta_R
keycode 109 = Linefeed NoSymbol Linefeed
keycode 110 = Home NoSymbol Home
keycode 111 = Up NoSymbol Up
keycode 112 = Prior NoSymbol Prior
keycode 113 = Left NoSymbol Left
keycode 114 = Right NoSymbol Right
keycode 115 = End NoSymbol End
keycode 116 = Down NoSymbol Down
keycode 117 = Next NoSymbol Next
keycode 118 = Insert NoSymbol Insert
keycode 119 = Delete NoSymbol Delete
keycode 120 =
keycode 121 = XF86AudioMute NoSymbol XF86AudioMute
keycode 122 = XF86AudioLowerVolume NoSymbol XF86AudioLowerVolume
keycode 123 = XF86AudioRaiseVolume NoSymbol XF86AudioRaiseVolume
keycode 124 = XF86PowerOff NoSymbol XF86PowerOff
keycode 125 = KP_Equal NoSymbol KP_Equal
keycode 126 = plusminus NoSymbol plusminus
keycode 127 = Pause Break Pause Break
keycode 128 = XF86LaunchA NoSymbol XF86LaunchA
keycode 129 = KP_Decimal KP_Decimal KP_Decimal KP_Decimal
keycode 130 = Hangul NoSymbol Hangul
keycode 131 = Hangul_Hanja NoSymbol Hangul_Hanja
keycode 132 =
keycode 133 = Super_L NoSymbol Super_L
keycode 134 = Super_R NoSymbol Super_R
keycode 135 = Multi_key Multi_key Multi_key Multi_key
keycode 136 = Cancel NoSymbol Cancel
keycode 137 = Redo NoSymbol Redo
keycode 138 = SunProps NoSymbol SunProps
keycode 139 = Undo NoSymbol Undo
keycode 140 = SunFront NoSymbol SunFront
keycode 141 = XF86Copy NoSymbol XF86Copy
keycode 142 = XF86Open NoSymbol XF86Open
keycode 143 = XF86Paste NoSymbol XF86Paste
keycode 144 = Find NoSymbol Find
keycode 145 = XF86Cut NoSymbol XF86Cut
keycode 146 = Help NoSymbol Help
keycode 147 = XF86MenuKB NoSymbol XF86MenuKB
keycode 148 = XF86Calculator NoSymbol XF86Calculator
keycode 149 =
keycode 150 = XF86Sleep NoSymbol XF86Sleep
keycode 151 = XF86WakeUp NoSymbol XF86WakeUp
keycode 152 = XF86Explorer NoSymbol XF86Explorer
keycode 153 = XF86Send NoSymbol XF86Send
keycode 154 =
keycode 155 = XF86Xfer NoSymbol XF86Xfer
keycode 156 = XF86Launch1 NoSymbol XF86Launch1
keycode 157 = XF86Launch2 NoSymbol XF86Launch2
keycode 158 = XF86WWW NoSymbol XF86WWW
keycode 159 = XF86DOS NoSymbol XF86DOS
keycode 160 = XF86ScreenSaver NoSymbol XF86ScreenSaver
keycode 161 = XF86RotateWindows NoSymbol XF86RotateWindows
keycode 162 = XF86TaskPane NoSymbol XF86TaskPane
keycode 163 = XF86Mail NoSymbol XF86Mail
keycode 164 = XF86Favorites NoSymbol XF86Favorites
keycode 165 = XF86MyComputer NoSymbol XF86MyComputer
keycode 166 = XF86Back NoSymbol XF86Back
keycode 167 = XF86Forward NoSymbol XF86Forward
keycode 168 =
keycode 169 = XF86Eject NoSymbol XF86Eject
keycode 170 = XF86Eject NoSymbol XF86Eject
keycode 171 = XF86AudioNext NoSymbol XF86AudioNext
keycode 172 = XF86AudioPlay XF86AudioPause XF86AudioPlay XF86AudioPause
keycode 173 = XF86AudioPrev NoSymbol XF86AudioPrev
keycode 174 = XF86AudioStop XF86Eject XF86AudioStop XF86Eject
keycode 175 = XF86AudioRecord NoSymbol XF86AudioRecord
keycode 176 = XF86AudioRewind NoSymbol XF86AudioRewind
keycode 177 = XF86Phone NoSymbol XF86Phone
keycode 178 =
keycode 179 = XF86Tools NoSymbol XF86Tools
keycode 180 = XF86HomePage NoSymbol XF86HomePage
keycode 181 = XF86Reload NoSymbol XF86Reload
keycode 182 = XF86Close NoSymbol XF86Close
keycode 183 =
keycode 184 =
keycode 185 = XF86ScrollUp NoSymbol XF86ScrollUp
keycode 186 = XF86ScrollDown NoSymbol XF86ScrollDown
keycode 187 = parenleft NoSymbol parenleft
keycode 188 = parenright NoSymbol parenright
keycode 189 = XF86New NoSymbol XF86New
keycode 190 = Redo NoSymbol Redo
keycode 191 = XF86Tools NoSymbol XF86Tools
keycode 192 = XF86Launch5 NoSymbol XF86Launch5
keycode 193 = XF86Launch6 NoSymbol XF86Launch6
keycode 194 = XF86Launch7 NoSymbol XF86Launch7
keycode 195 = XF86Launch8 NoSymbol XF86Launch8
keycode 196 = XF86Launch9 NoSymbol XF86Launch9
keycode 197 =
keycode 198 = XF86AudioMicMute NoSymbol XF86AudioMicMute
keycode 199 = XF86TouchpadToggle NoSymbol XF86TouchpadToggle
keycode 200 = XF86TouchpadOn NoSymbol XF86TouchpadOn
keycode 201 = XF86TouchpadOff NoSymbol XF86TouchpadOff
keycode 202 =
keycode 203 = ISO_Level5_Shift NoSymbol ISO_Level5_Shift
keycode 204 = NoSymbol Alt_L NoSymbol Alt_L
keycode 205 = NoSymbol Meta_L NoSymbol Meta_L
keycode 206 = NoSymbol Super_L NoSymbol Super_L
keycode 207 = NoSymbol Hyper_L NoSymbol Hyper_L
keycode 208 = XF86AudioPlay NoSymbol XF86AudioPlay
keycode 209 = XF86AudioPause NoSymbol XF86AudioPause
keycode 210 = XF86Launch3 NoSymbol XF86Launch3
keycode 211 = XF86Launch4 NoSymbol XF86Launch4
keycode 212 = XF86LaunchB NoSymbol XF86LaunchB
keycode 213 = XF86Suspend NoSymbol XF86Suspend
keycode 214 = XF86Close NoSymbol XF86Close
keycode 215 = XF86AudioPlay NoSymbol XF86AudioPlay
keycode 216 = XF86AudioForward NoSymbol XF86AudioForward
keycode 217 =
keycode 218 = Print NoSymbol Print
keycode 219 =
keycode 220 = XF86WebCam NoSymbol XF86WebCam
keycode 221 = XF86AudioPreset NoSymbol XF86AudioPreset
keycode 222 =
keycode 223 = XF86Mail NoSymbol XF86Mail
keycode 224 = XF86Messenger NoSymbol XF86Messenger
keycode 225 = XF86Search NoSymbol XF86Search
keycode 226 = XF86Go NoSymbol XF86Go
keycode 227 = XF86Finance NoSymbol XF86Finance
keycode 228 = XF86Game NoSymbol XF86Game
keycode 229 = XF86Shop NoSymbol XF86Shop
keycode 230 =
keycode 231 = Cancel NoSymbol Cancel
keycode 232 = XF86MonBrightnessDown NoSymbol XF86MonBrightnessDown
keycode 233 = XF86MonBrightnessUp NoSymbol XF86MonBrightnessUp
keycode 234 = XF86AudioMedia NoSymbol XF86AudioMedia
keycode 235 = XF86Display NoSymbol XF86Display
keycode 236 = XF86KbdLightOnOff NoSymbol XF86KbdLightOnOff
keycode 237 = XF86KbdBrightnessDown NoSymbol XF86KbdBrightnessDown
keycode 238 = XF86KbdBrightnessUp NoSymbol XF86KbdBrightnessUp
keycode 239 = XF86Send NoSymbol XF86Send
keycode 240 = XF86Reply NoSymbol XF86Reply
keycode 241 = XF86MailForward NoSymbol XF86MailForward
keycode 242 = XF86Save NoSymbol XF86Save
keycode 243 = XF86Documents NoSymbol XF86Documents
keycode 244 = XF86Battery NoSymbol XF86Battery
keycode 245 = XF86Bluetooth NoSymbol XF86Bluetooth
keycode 246 = XF86WLAN NoSymbol XF86WLAN
keycode 247 = XF86UWB NoSymbol XF86UWB
keycode 248 =
keycode 249 = XF86Next_VMode NoSymbol XF86Next_VMode
keycode 250 = XF86Prev_VMode NoSymbol XF86Prev_VMode
keycode 251 = XF86MonBrightnessCycle NoSymbol XF86MonBrightnessCycle
keycode 252 = XF86BrightnessAuto NoSymbol XF86BrightnessAuto
keycode 253 = XF86DisplayOff NoSymbol XF86DisplayOff
keycode 254 = XF86WWAN NoSymbol XF86WWAN
keycode 255 = XF86RFKill NoSymbol XF86RFKill

(In reply to gudvinr+kde from comment #4)
> I don't see F24 here, however I don't see F13-F23 either but I can map those
> to shortcuts anyway.

I think those gets mapped to XF86 keys. So I think that F19 also wouldn't work for you, because its keycode is unmapped.

But that doesn't explain F24 not working on Wayland then

I'll take a (In reply to gudvinr+kde from comment #6)
> But that doesn't explain F24 not working on Wayland then

I'll take a deeper look. Might be the same issue as 475574. But I am afraid the earliest version you can expect to see a patch would be 6.1, since 6.0 is already just around the corner.

If that would be the only issue Wayland has, I could swallow it and redefine QMK configuration. It's not urgent by any means.
That's actually what I did when I first had this issue on X11 so it didn't really bother for a long time. Although less issues is always better.

(In reply to fanzhuyifan from comment #5)
> I think those gets mapped to XF86 keys. So I think that F19 also wouldn't
> work for you, because its keycode is unmapped.

Indeed. With remapping it begins to work:
$ xmodmap -e "keycode 197 = F19"
$ xmodmap -e "keycode 202 = F24"

I want to talk about how your F keys goes to 24. Forget about the bug. 😲

(In reply to etoven from comment #10)
> I want to talk about how your F keys goes to 24. Forget about the bug. 😲

You don't need keyboard that has F* keys to go to 24. Keyboard doesn't really know what key is pressed in same sense that OS does.
Keyboard sends scancodes which might be translated as any key in OS.

In most notebook keyboards Fn toggles F* row between F1-F12 keys and "action" keys like brightness control, volume control, etc.
To simplify, these "action keys" have same scancodes that F13-F24 would have if you had them present. And you can remap scancodes to be registered by OS as F13-F24 keys yourself, if you want to.

But in my case, I use QMK keyboard that sends scancodes for F13-F24 to avoid using same scancodes that my main keyboard.

(In reply to etoven from comment #10)
> I want to talk about how your F keys goes to 24. Forget about the bug. 😲

in my case I can just rebind the keys in software, so added fn+Fkeys to f13-24.

I believe the issue that I'm having is related to this one, where I have a key on my keyboard that has a picture of a calculator on it. I believe it was sending keycode 148 = XF86Calculator NoSymbol XF86Calculator when pressed. It used to launch kcalc, but now does nothing and I can't reassign it. Pressing that key to try and assign a shortcut to it does nothing.

(In reply to Dashon from comment #13)
> I believe the issue that I'm having is related to this one, where I have a
> key on my keyboard that has a picture of a calculator on it. I believe it
> was sending keycode 148 = XF86Calculator NoSymbol XF86Calculator when
> pressed. It used to launch kcalc, but now does nothing and I can't reassign
> it. Pressing that key to try and assign a shortcut to it does nothing.

That is BUG 478936.

(In reply to Dashon from comment #13)
> I believe the issue that I'm having is related to this one, where I have a
> key on my keyboard that has a picture of a calculator on it. I believe it
> was sending keycode 148 = XF86Calculator NoSymbol XF86Calculator when
> pressed. It used to launch kcalc, but now does nothing and I can't reassign
> it. Pressing that key to try and assign a shortcut to it does nothing.

There was another bug about that, should be fixed when you upgrade to qt 6.7 but you need to rebind the key in settings.
https://bugs.kde.org/show_bug.cgi?id=478936

(In reply to qlum from comment #15)
> (In reply to Dashon from comment #13)
> > I believe the issue that I'm having is related to this one, where I have a
> > key on my keyboard that has a picture of a calculator on it. I believe it
> > was sending keycode 148 = XF86Calculator NoSymbol XF86Calculator when
> > pressed. It used to launch kcalc, but now does nothing and I can't reassign
> > it. Pressing that key to try and assign a shortcut to it does nothing.
> 
> There was another bug about that, should be fixed when you upgrade to qt 6.7
> but you need to rebind the key in settings.
> https://bugs.kde.org/show_bug.cgi?id=478936

No need to rebind if you just want to use the default calculator key for kcalc.

(In reply to qlum from comment #15)
> (In reply to Dashon from comment #13)
> > I believe the issue that I'm having is related to this one, where I have a
> > key on my keyboard that has a picture of a calculator on it. I believe it
> > was sending keycode 148 = XF86Calculator NoSymbol XF86Calculator when
> > pressed. It used to launch kcalc, but now does nothing and I can't reassign
> > it. Pressing that key to try and assign a shortcut to it does nothing.
> 
> There was another bug about that, should be fixed when you upgrade to qt 6.7
> but you need to rebind the key in settings.
> https://bugs.kde.org/show_bug.cgi?id=478936

Okay, thanks for the info.

So the issue here is that XKB doesn't map the keycode to any keysym?

(In reply to Nicolas Fella from comment #18)
> So the issue here is that XKB doesn't map the keycode to any keysym?

That is controlled by the user configurable keymap. When a keycode is unmapped, currently we cannot handle it in shortcuts.

(In reply to fanzhuyifan from comment #19)
> That is controlled by the user configurable keymap. When a keycode is
> unmapped, currently we cannot handle it in shortcuts.

Is that any different on Wayland? I can live with that on X11 but I don't think that manual remapping is correct (as in user friendly) way to do things moving forward.

(In reply to gudvinr+kde from comment #20)
> (In reply to fanzhuyifan from comment #19)
> > That is controlled by the user configurable keymap. When a keycode is
> > unmapped, currently we cannot handle it in shortcuts.
> 
> Is that any different on Wayland? I can live with that on X11 but I don't
> think that manual remapping is correct (as in user friendly) way to do
> things moving forward.

Unfortunately, given the current codebase, we also rely on that on wayland.
Currently all shortcuts are stored using QKeySequence. We use the keymap to convert keycodes to keysyms, and then convert the keysyms into Qt keys. If we want to support platform native keycodes, that would need a pretty significant change throughout the code base.