multihead bspwm: polybar not adjusting on monitor add/remove

boojum · 2020-06-30 11:44:26

I recently added polybar to my bspwm multihead setup, and I'm experiencing problems while hotplugging a monitor. polybar transfers to plugged in external monitor, but with weird margins and desktops numbering starting from 6 instead of 1. By the same token, it vanishes from the laptop display, leaving a weird margin in its stead.

Could someone help me figuring this out? I'm not looking for anything fancy here:

single monitor: one instance of polybar showing desktops 1 through 0
on plugging-in external monitor: one instance per monitor, external numbering 1-5, laptop remaining desktops
on removing external monitor: back to one instance with 1 to 0 desktops

I'm using a simple script to cover monitor hot-plugging:

#!/bin/bash

displaynum=`ls /tmp/.X11-unix/* | sed s#/tmp/.X11-unix/X##`
display=":$displaynum.0"
export DISPLAY=":$displaynum.0"

export XAUTHORITY=$(ps -C Xorg -f --no-header | sed -n 's/.*-auth //; s/ -[^ ].*//; p')


connect() {
  n_desktops=5

  xrandr --output HDMI-1 --mode 1920x1080 --above eDP-1 --primary

  for desktop in $(bspc query -D -m eDP-1 | sed "$n_desktops"q); do
    bspc desktop $desktop --to-monitor HDMI-1
  done

  bspc desktop Desktop --remove > /dev/null
  bspc wm --reorder-monitors eDP-1 HDMI-1
}

disconnect() {
  bspc monitor HDMI-1 -a Desktop > /dev/null

  for desktop in $(bspc query -D -m HDMI-1); do
    if ! [[ $desktop = "Desktop" ]]; then
      bspc desktop $desktop --to-monitor eDP-1
    fi
  done

  bspc desktop Desktop --remove > /dev/null

  bspc wm --reorder-monitors HDMI-1 eDP-1

  bspc monitor HDMI-1 --remove > /dev/null
  xrandr --output HDMI-1 --off
}

if [ $(cat /sys/class/drm/card0-HDMI-A-1/status) == "connected" ] ; then
  connect
elif [ $(cat /sys/class/drm/card0-HDMI-A-1/status) == "disconnected" ] ; then
  disconnect
else
  exit
fi

bspwm config:

#!/usr/bin/env zsh

bspc monitor eDP-1 -d 1 2 3 4 5 6 7 8 9 0

$XDG_CONFIG_HOME/polybar/start.sh

bspc config border_width                2
bspc config window_gap                  8
bspc config top_padding                 10
bspc config left_padding                10
bspc config right_padding               10
bspc config bottom_padding              10

bspc config normal_border_color         "#272822"
bspc config focused_border_color        "#fd971f"
bspc config active_border_color         "#fd971f"

for side in top right bottom left; do
  bspc config ${side}_monocle_padding -10;
done

bspc config split_ratio                 0.50
bspc config borderless_monocle          true
bspc config gapless_monocle             true
bspc config single_monocle              false
bspc config focus_follows_pointer       true
bspc config ignore_ewmh_focus           false
bspc config center_pseudo_tiled         true
bspc config honor_size_hints            false

bspc config remove_disabled_monitors    true
bspc config remove_unplugged_monitors   true
#bspc config merge_overlapping_monitors  true

bspc rule -a Dialog state=floating centre=true
bspc rule -a mpv state=floating centre=true
bspc rule -a Pinentry-gtk-2 state=floating centre=true
bspc rule -a feh state=floating centre=true
bspc rule -a Zathura state=tiled
bspc rule -a chromium private=on
bspc rule -a Anki state=floating

And the script used to start the polybar:

for m in $(xrandr --query | grep " connected" | cut -d" " -f1); do
  MONITOR=$m polybar --reload $m &
done

For the completeness sake, here's the actual polybar config (nothing more that trimmed down default):

[colors]
;background = ${xrdb:color0:#222}
background = #222
background-alt = #444
;foreground = ${xrdb:color7:#222}
foreground = #dfdfdf
foreground-alt = #555
primary = #ffb52a
secondary = #e60053
alert = #bd2c40

[bar/eDP-1]
monitor = eDP-1
width = 100%
height = 27
radius = 6.0
fixed-center = false

background = ${colors.background}
foreground = ${colors.foreground}

line-size = 3
line-color = #f00

border-size = 4
border-color = #00000000

padding-left = 0
padding-right = 2

module-margin-left = 1
module-margin-right = 2

font-0 = fixed:pixelsize=10;1
font-1 = unifont:fontformat=truetype:size=8:antialias=false;0
font-2 = siji:pixelsize=10;1

modules-left = bspwm

wm-restack = bspwm


[bar/HDMI-1]
monitor = HDMI-1
width = 100%
height = 27
radius = 6.0
fixed-center = false

background = ${colors.background}
foreground = ${colors.foreground}

line-size = 3
line-color = #f00

border-size = 4
border-color = #00000000

padding-left = 0
padding-right = 2

module-margin-left = 1

font-0 = fixed:pixelsize=10;1
font-1 = unifont:fontformat=truetype:size=8:antialias=false;0
font-2 = siji:pixelsize=10;1

modules-left = bspwm


[module/bspwm]
type = internal/bspwm

label-focused = %name%
label-focused-background = ${colors.background-alt}
label-focused-underline= ${colors.primary}
label-focused-padding = 2

label-occupied = %name%
label-occupied-padding = 2

label-urgent = %name%!
label-urgent-background = ${colors.alert}
label-urgent-padding = 2

label-empty = %name%
label-empty-foreground = ${colors.foreground-alt}
label-empty-padding = 2

; Only show workspaces on the same output as the bar
pin-workspaces = true

[settings]
screenchange-reload = true

[global/wm]
margin-top = 5
margin-bottom = 5

I'm kind off stumped as to what am I doing wrong here, and would appreciate help and suggestions!

Last edited by boojum (2020-06-30 11:44:55)

Arch Linux

#1 2020-06-30 11:44:26

multihead bspwm: polybar not adjusting on monitor add/remove

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