5

I use archlinux and compton.

I read this in the wiki:

Exclude all windows with no name from compton using the following options:

$ compton <other arguments> --focus-exclude "! name~="

But this does not work. It gives me that error message:

Pattern "! name~=" pos 8: Invalid pattern type.

I use two programs I want on the exclude list. One is 'dmenu' and one 'i3lock' and want to exclude it. I executed xwininfo to get the id:

xwininfo: Window id: 0x3e00003 "i3lock"

  Absolute upper-left X:  0
  Absolute upper-left Y:  0
  Relative upper-left X:  0
  Relative upper-left Y:  0
  Width: 3840
  Height: 1080
  Depth: 24
  Visual: 0x23
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: yes
  Corners:  +0+0  -0+0  -0-0  +0-0
  -geometry 3840x1080+0+0

Unfortunately the id changes so I can't use it. And using "class_g = 'i3lock'", doesn't work either.

any ideas?

I also tried the other example about dmenu in the archwiki, but this doesn't work for me either. But nevertheless i3lock is even more important to me.

Thank you.

3
+25

You have to use xprop -id 0x3e00003 to get all atoms of that window. For dmenu it will be:

WM_CLASS(STRING) = "dmenu", "Dmenu"

The following CONDITION matches this atom:

"class_g *?= 'dmenu'"

You can use multiple conditions:

"class_g *?= 'dmenu' && class_g *?= 'i3lock'"

However I didn't find the wm class or any other atom of i3lock. It seems that i3lock doesn't get a windowid. So I would suggest to write a little wrapper script around i3lock:

#!/bin/sh
killall compton
i3lock -n <other arguments>
compton -b <other arguments>
2
  • What does this wrapper script? – linuxNewbie Mar 30 '17 at 7:21
  • If you run the wrapper script instead of i3lock, it will stop compton, run i3lock and start compton again after you unlock your screen. Since i3lock is not a managed window, ewmh tools do not work. compton uses ewmh (atoms) to find informations about windows. – ctx Mar 30 '17 at 9:48

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