Waybar crashes when all monitors are disabled in Wayland/sway

[oniGino]

Either on sleep or wake waybar crashes

running Gentoo
sway-1.7-r2
waybar-0.9.13

Aug 31 10:07:19 GreySoap systemd-coredump[21541]: [🡕] Process 59504 (waybar) of user 1000 dumped core.

                                                  Module linux-vdso.so.1 with build-id 5e87319bd29b89d4eea13c3ff14785367a33075d
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                                                  Stack trace of thread 59517:
                                                  #0  0x0000000000000000 n/a (n/a + 0x0)
                                                  #1  0x00007f8f79ffa548 n/a (n/a + 0x0)
                                                  #2  0x00007f8f9c5a835c read (libc.so.6 + 0xf935c)

                                                  Stack trace of thread 59504:
                                                  #0  0x00007f8f9c532fda n/a (libc.so.6 + 0x83fda)
                                                  #1  0x00007f8f9c537e63 n/a (libc.so.6 + 0x88e63)
                                                  #2  0x00007f8f9c861fa3 _ZNSt6thread4joinEv (libstdc++.so.6 + 0xd4fa3)
                                                  #3  0x000055b2f5a867ee n/a (waybar + 0x667ee)
                                                  #4  0x000055b2f5ab043b n/a (waybar + 0x9043b)
                                                  #5  0x000055b2f5ab0589 n/a (waybar + 0x90589)
                                                  #6  0x000055b2f5a96519 n/a (waybar + 0x76519)
                                                  #7  0x000055b2f5a9d82f n/a (waybar + 0x7d82f)
                                                  #8  0x000055b2f5aaa3f8 n/a (waybar + 0x8a3f8)
                                                  #9  0x00007f8f9cd9257d n/a (libglibmm-2.4.so.1 + 0x7957d)
                                                  #10 0x00007f8f9cc05b59 g_main_context_dispatch (libglib-2.0.so.0 + 0xf7b59)
                                                  #11 0x00007f8f9cc0601b n/a (libglib-2.0.so.0 + 0xf801b)
                                                  #12 0x00007f8f9cc061d7 g_main_context_iteration (libglib-2.0.so.0 + 0xf81d7)
                                                  #13 0x00007f8f9cf178bd g_application_run (libgio-2.0.so.0 + 0x16a8bd)
                                                  #14 0x000055b2f5aa288a n/a (waybar + 0x8288a)
                                                  #15 0x000055b2f5a90f54 main (waybar + 0x70f54)
                                                  #16 0x00007f8f9c4d834a n/a (libc.so.6 + 0x2934a)
                                                  #17 0x00007f8f9c4d83fc __libc_start_main (libc.so.6 + 0x293fc)
                                                  #18 0x000055b2f5a71691 n/a (waybar + 0x51691)

                                                  Stack trace of thread 59506:
                                                  #0  0x00007f8f9c5ac31f __poll (libc.so.6 + 0xfd31f)
                                                  #1  0x00007f8f9cc05fc5 n/a (libglib-2.0.so.0 + 0xf7fc5)
                                                  #2  0x00007f8f9cc061d7 g_main_context_iteration (libglib-2.0.so.0 + 0xf81d7)
                                                  #3  0x00007f8f9cc08321 n/a (libglib-2.0.so.0 + 0xfa321)
                                                  #4  0x00007f8f9cc401ba n/a (libglib-2.0.so.0 + 0x1321ba)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59509:
                                                  #0  0x00007f8f9c5ac31f __poll (libc.so.6 + 0xfd31f)
                                                  #1  0x00007f8f9cc05fc5 n/a (libglib-2.0.so.0 + 0xf7fc5)
                                                  #2  0x00007f8f9cc061d7 g_main_context_iteration (libglib-2.0.so.0 + 0xf81d7)
                                                  #3  0x00007f8f971c7aed n/a (libdconfsettings.so + 0x9aed)
                                                  #4  0x00007f8f9cc401ba n/a (libglib-2.0.so.0 + 0x1321ba)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59514:
                                                  #0  0x00007f8f9c532fda n/a (libc.so.6 + 0x83fda)
                                                  #1  0x00007f8f9c535d62 pthread_cond_clockwait (libc.so.6 + 0x86d62)
                                                  #2  0x000055b2f5a8912e n/a (waybar + 0x6912e)
                                                  #3  0x000055b2f5a88b12 n/a (waybar + 0x68b12)
                                                  #4  0x00007f8f9c861f40 n/a (libstdc++.so.6 + 0xd4f40)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59510:
                                                  #0  0x00007f8f9c5b9f76 recv (libc.so.6 + 0x10af76)
                                                  #1  0x000055b2f5ac2953 n/a (waybar + 0xa2953)
                                                  #2  0x000055b2f5af0d6f n/a (waybar + 0xd0d6f)
                                                  #3  0x000055b2f5a88b12 n/a (waybar + 0x68b12)
                                                  #4  0x00007f8f9c861f40 n/a (libstdc++.so.6 + 0xd4f40)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59511:
                                                  #0  0x00007f8f9c5b9f76 recv (libc.so.6 + 0x10af76)
                                                  #1  0x000055b2f5ac2953 n/a (waybar + 0xa2953)
                                                  #2  0x000055b2f5ad64bf n/a (waybar + 0xb64bf)
                                                  #3  0x000055b2f5a88b12 n/a (waybar + 0x68b12)
                                                  #4  0x00007f8f9c861f40 n/a (libstdc++.so.6 + 0xd4f40)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59513:
                                                  #0  0x00007f8f9c532fda n/a (libc.so.6 + 0x83fda)
                                                  #1  0x00007f8f9c535d62 pthread_cond_clockwait (libc.so.6 + 0x86d62)
                                                  #2  0x000055b2f5a8912e n/a (waybar + 0x6912e)
                                                  #3  0x000055b2f5a88b12 n/a (waybar + 0x68b12)
                                                  #4  0x00007f8f9c861f40 n/a (libstdc++.so.6 + 0xd4f40)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59505:
                                                  #0  0x00007f8f9c4ed51a __sigtimedwait (libc.so.6 + 0x3e51a)
                                                  #1  0x00007f8f9c4ecb4c sigwait (libc.so.6 + 0x3db4c)
                                                  #2  0x000055b2f5a90c97 n/a (waybar + 0x70c97)
                                                  #3  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #4  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59512:
                                                  #0  0x00007f8f9c5ac31f __poll (libc.so.6 + 0xfd31f)
                                                  #1  0x00007f8f9ca8d8be n/a (libpulse.so.0 + 0x528be)
                                                  #2  0x00007f8f9ca7cb91 pa_mainloop_poll (libpulse.so.0 + 0x41b91)
                                                  #3  0x00007f8f9ca8dcb9 n/a (libpulse.so.0 + 0x52cb9)
                                                  #4  0x00007f8f9bbea930 n/a (libpulsecommon-16.1.so + 0x94930)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)

                                                  Stack trace of thread 59508:
                                                  #0  0x00007f8f9c5ac31f __poll (libc.so.6 + 0xfd31f)
                                                  #1  0x00007f8f9cc05fc5 n/a (libglib-2.0.so.0 + 0xf7fc5)
                                                  #2  0x00007f8f9cc06479 g_main_loop_run (libglib-2.0.so.0 + 0xf8479)
                                                  #3  0x00007f8f9cf5d376 n/a (libgio-2.0.so.0 + 0x1b0376)
                                                  #4  0x00007f8f9cc401ba n/a (libglib-2.0.so.0 + 0x1321ba)
                                                  #5  0x00007f8f9c5363da n/a (libc.so.6 + 0x873da)
                                                  #6  0x00007f8f9c5b912c n/a (libc.so.6 + 0x10a12c)
                                                  ELF object binary architecture: AMD x86-64
Aug 31 10:07:19 GreySoap systemd[1]: systemd-coredump@7-21517-0.service: Deactivated successfully.
Aug 31 10:07:19 GreySoap sway[6349]: 71:56:11.331 [ERROR] [sway/ipc-server.c:208] IPC Client socket error, removing client
Aug 31 10:07:19 GreySoap sway[6349]: 71:56:11.331 [ERROR] [sway/ipc-server.c:208] IPC Client socket error, removing client

I can't tell if its happening on sleep or on wake

[oniGino]

[2022-09-25 19:41:39.502] [debug] network: default route deleted wlan0/if3 metric 1024
[2022-09-25 19:41:39.550] [debug] Output removed: Sharp Corporation 0x1484

(waybar:78793): GLib-GIO-WARNING **: 19:41:39.597: Invalid id 2 passed to g_bus_unwatch_name()
Segmentation fault (core dumped)

here is waybar -log debug output

[oniGino]

This seems very similar to #1168

[primalmotion]

I have the same issue on Hyprland.

[oniGino]

Here is the root of my issue, it is a bug in waybar but I think its solvable if I can get a maintainer to look at this 🙏🏾

in my sway config i had the following

bindswitch --reload --locked lid:on output eDP-1 disable
bindswitch --reload --locked lid:off output eDP-1 enable

This if referenced from swaywm/sway#4224

Basically when i close my lid I want my workspaces moved to my larger docked monitor and this is a hack for that.
When lid is closed and undocked sway has no enabled monitors (outputs) and waybar crashes if no outputs exist

so please make waybar not crash when the list of outputs is empty

As a work around I think swaywm/sway#5553 might work but comes with its own set of issues
This bug can hopefully just be solved here.... sadly I've had no maintainer feedback yet.

[primalmotion]

I think my problem with Hyprland is more or less the same. I described the issue and what I have here hyprwm/Hyprland#804 (comment) . It talks about Hyprland crashing, but basically Waybar seems to crash for the same reasons.

[vinylen]

This happens for me as well. Is there any workaround for this?

[kwibus]

What i do as work as workaround is to only disable laptop screen when there is another active screen.

config:

bindswitch --reload --locked lid:on exec sway-disable-if.sh  $laptop                                                                                                                        
bindswitch --reload --locked lid:off output $laptop enable

sway-disable-if.sh

display=${1:-eDP-1}
nActive=$(swaymsg -t get_outputs -r | jq '.[]| select(.active==true).name' |wc -l )
if [ "$nActive" -gt 1 ]
then 
  sway output "$display" disable
fi

• This might still break when you disconnect seconde screen later. while lid is still closed.
• script assumes you have only 1 laptop screen named eDP-1
• you have jq, swaymsg and wc installed