[SOLVED] XF86 Keys Crash X/I3

waffle0007 · 2023-12-05 00:07:29

Upon pressing any of the XF86* keys on my laptop, I3 seems to no longer respond to shortcuts, nor do other things like text selection with mouse work. These keys are not mapped by any software, nor can I find anything relevant in my Xorg log. Here is an excerpt from Xev

KeyPress event, serial 34, synthetic NO, window 0x1000001,
    root 0x55c, subw 0x0, time 6976342, (-9,410), root:(720,450),
    state 0x0, keycode 232 (keysym 0x1008ff03, XF86MonBrightnessDown), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 34, synthetic NO, window 0x1000001,
    root 0x55c, subw 0x0, time 6976438, (-9,410), root:(720,450),
    state 0x0, keycode 232 (keysym 0x1008ff03, XF86MonBrightnessDown), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 34, synthetic NO, window 0x1000001,
    root 0x55c, subw 0x0, time 6978998, (-9,410), root:(720,450),
    state 0x0, keycode 133 (keysym 0xffeb, Super_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

FocusOut event, serial 34, synthetic NO, window 0x1000001,
    mode NotifyGrab, detail NotifyAncestor

FocusIn event, serial 34, synthetic NO, window 0x1000001,
    mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 34, synthetic NO, window 0x0,
    keys:  100 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           32  0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

KeyRelease event, serial 34, synthetic NO, window 0x1000001,
    root 0x55c, subw 0x0, time 6979830, (-9,410), root:(720,450),
    state 0x40, keycode 133 (keysym 0xffeb, Super_L), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

After the `XF86MonBrightnessDown` key-release event, things are broken. The following data is from pressing `Super_L + F`, which should launch Firefox, although it does nothing. Please let me know if I can provide any further info.

Last edited by waffle0007 (2023-12-08 20:55:16)

seth · 2023-12-05 07:56:32

I'm gonna say the key somehow™ crashes your shortcut dameon.

1. do you bind them in i3 directly or eg. xbindkeys
2. does the i3 process actually survive pressing that key (you could switch to a different TTY and test "ps aux | grep i3")

waffle0007 · 2023-12-05 21:28:26

Sorry, "crash" may be a bit of an exaggeration; i3 is still running upon triggering the XF86 keys. As far as I'm aware, the keys are not bound by anything. I don't reference them in my i3 config, and don't have xbindkeys installed, although the behaviour is the same when I do try to map them through i3.

seth · 2023-12-06 07:39:51

How do you know i3 is still running (is it maybe sigstop'd) by

I3 seems to no longer respond to shortcuts

and unless you inspected the process list?

The following data is from pressing `Super_L + F`, which should launch Firefox

The shortcut /is/ intercepted (the xev pattern is that of a passive grab), so what doesn't work is to run FF, but it's currently not clear whether the failure is to spawn the process (journal? coredumps?) or the window (b/c i3 isn't mapping it)

=> Check the process tree after pressing such key, look out for FF processes and the state of I3

waffle0007 · 2023-12-07 07:26:15

From another tty, i3 appears to be still running after triggering the problematic keys

jack      8172  0.1  0.2 279188 21936 tty1     T    00:18   0:00 /usr/bin/i3
jack      8176  0.0  0.0   3144   640 tty1     T    00:18   0:00 dbus-launch --exit-with-session /usr/bin/i3
jack      9010  0.0  0.0   8632  6016 pts/0    S+   00:19   0:00 rg i3

Here is Xorg log. There's nothing relevant in dmesg, but let me know if I can provide additional logs. Thanks :^)

seth · 2023-12-07 07:57:34

Do you know what the "T" means?

pkill -SIGCONT i3

dbus-launch --exit-with-session /usr/bin/i3

Why is that there? Don't dbus-launch anything!
How do you start the session? xinit/startx? => [edit: last] link below, and post your xinitrc.

Last edited by seth (2023-12-07 07:57:48)

waffle0007 · 2023-12-08 20:51:10

I did not know what the T means in `ps` output... thank you for pointing that out. My current xinitrc after removing dbus-launch is

#!/bin/sh
/home/jack/.config/fehbg &
exec /usr/bin/i3

and I launch X via `.zshrc`:

if [ "$(tty)" = "/dev/tty1" ]; then
  exec startx
fi

seth · 2023-12-08 20:53:50

My current xinitrc

seth wrote:

last link below

Pay attention to the paragraph that tells you what to at least include there.

Then report back if the process still stops.

waffle0007 · 2023-12-08 20:55:01

I should have tested before posting my previous message. Removing `dbus-launch ...` fixed the problem! Thank you so much for your help

seth · 2023-12-08 20:57:22

Still fix your xinitc, though - otherwise you're running a degraded session.

Arch Linux

#1 2023-12-05 00:07:29

[SOLVED] XF86 Keys Crash X/I3

#2 2023-12-05 07:56:32

Re: [SOLVED] XF86 Keys Crash X/I3

#3 2023-12-05 21:28:26

Re: [SOLVED] XF86 Keys Crash X/I3

#4 2023-12-06 07:39:51

Re: [SOLVED] XF86 Keys Crash X/I3

#5 2023-12-07 07:26:15

Re: [SOLVED] XF86 Keys Crash X/I3

#6 2023-12-07 07:57:34

Re: [SOLVED] XF86 Keys Crash X/I3

#7 2023-12-08 20:51:10

Re: [SOLVED] XF86 Keys Crash X/I3

#8 2023-12-08 20:53:50

Re: [SOLVED] XF86 Keys Crash X/I3

#9 2023-12-08 20:55:01

Re: [SOLVED] XF86 Keys Crash X/I3

#10 2023-12-08 20:57:22

Re: [SOLVED] XF86 Keys Crash X/I3

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