terminator separator is transparent

Bug #1768264 reported by Brian Murray on 2018-05-01
This bug affects 8 people
Affects Status Importance Assigned to Milestone
terminator (Ubuntu)

Bug Description

I'm quite certain the separator between terminal used to be white, however it is now transparent so I end up seeing part of my wallpaper or whatever window is behind terminator. This ends up being quite strange and has become a distraction as it is something I can never unsee.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: terminator 1.91-1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue May 1 07:32:26 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-01-16 (1930 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130116)
PackageArchitecture: all
SourcePackage: terminator
UpgradeStatus: No upgrade log present (probably fresh install)

Related branches

Brian Murray (brian-murray) wrote :
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in terminator (Ubuntu):
status: New → Confirmed
Egmont Koblinger (egmont-gmail) wrote :

I can confirm this with Ubuntu's default Ambiance theme. (Not with GTK+'s default Adwaita, though.)

Stephen Boddy (stephen-j-boddy) wrote :

This is typically because of how the theme is drawn.

If you look here: https://bazaar.launchpad.net/~gnome-terminator/terminator/gtk3/files/head:/terminatorlib/themes/

You can see the overrides in place to make Terminator play nice with some themes that do funky things.

But your particular problem /should/ have been fixed by:

That should select the background color of your theme, and ensure that the pane handle is drawn with it.

Try attaching a screenshot and let me know what gtk3 theme you use. That might give me more of a clue.

Changed in terminator (Ubuntu):
status: Confirmed → Incomplete
Stephen Boddy (stephen-j-boddy) wrote :

Ah. I didn't see Egmont's follow up comment. More info from you Brian would still be useful.

@Egmont: I assume you too are already on 18.04 LTS like Brian?

Egmont Koblinger (egmont-gmail) wrote :

Yup, I'm on 18.04 too.

I haven't noticed this bug before, although I use Ambiance, and I fire up terminator every once in a while. So probably it's a regression in 18.04, probably it looked okay in 17.10.

Brian Murray (brian-murray) wrote :

I'm also using Ambiance and I've attached a screenshot but don't think it represents what I actually see in the separator.

Changed in terminator (Ubuntu):
status: Incomplete → New
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in terminator (Ubuntu):
status: New → Confirmed
Bryce Harrington (bryce) wrote :

I see this as well on 18.04 when using Ambiance or Radiance themes.

I found these bug reports which seem roughly similar for different software:


Matteo Natalicchio (luponata) wrote :

Got this bug after upgrading from 16.04 LTS to 18.04 LTS

Same problem here on 18.04. Tried most things on the config side, but without success.

Laurent Dumont (baconpackets) wrote :

Experiencing the same issue as everyone else with:
Ubuntu : 18.04.1
Terminator : 1.91-1

Rodrigo Yoshida (rodrigoymy) wrote :

Same here, Ubuntu 18.4 with Terminator 1.91
This bug is actually quite annoying depending on the window you have behind Terminator.

This bug is present in a fresh install of Ubuntu 18.04.2. As a workaround I changed line 446 in terminator.py to:

        css = """
            .terminator-terminal-window {
                background-color: white}

Which seems to work. Changing .pane-separator didn't work. In fact, changing the pane separator size in settings didn't work at all - it is always fixed at 1 pixel and transparent.

Bryce Harrington (bryce) on 2019-07-24
Changed in terminator (Ubuntu):
importance: Undecided → High
Bryce Harrington (bryce) wrote :

Confirmed that the suggested css workaround does indeed fix the problem. Test case:

$ cat > /tmp/config <<EOF
      parent = ""
      type = Window
      parent = window0
      type = HPaned
      parent = child0
      type = Terminal
      parent = child0
      type = Terminal
### Broken behavior:
$ terminator --no-dbus --config /tmp/config --layout test

### Fixed behavior:
$ sed -i 's/background-color: alpha(@theme_bg_color,0); }/background-color: white; }/' /usr/share/terminator/terminatorlib/terminator.py
$ terminator --no-dbus --config /tmp/config --layout test

Changed in terminator (Ubuntu):
status: Confirmed → Triaged
Bryce Harrington (bryce) wrote :

The line in question was introduced by rev1672, or probably 1637.1.4 more specifically. "Fix the colours to use public ones, and make Adwaita hover fix consistent." from 2016-12-08.

             .terminator-terminal-window {
- background-color: rgba(0,0,0,0); }
+ background-color: alpha(@theme_bg_color,0); }

I'm curious why it added alpha(...) when the patch didn't do that for other window elements, e.g.:

             .pane-separator {
- background-color: @bg_color; }
+ background-color: @theme_bg_color; }

I notice if instead of changing it to white, I just change it to the theme_bg_color it looks great. I.e., change the sed line from the test case in my previous comment to:

$ sed -i 's/background-color: alpha(@theme_bg_color,0); }/background-color: @theme_bg_color; }/' /usr/share/terminator/terminatorlib/terminator.py

I think removing the "alpha(...)" is the right fix for this bug, unless anyone knows different?

Bryce Harrington (bryce) wrote :
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Duplicates of this bug

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.