Public bug reported:
In Ubuntu 14.04 and earlier, gnome-terminal's transparent background
option works well with gnome-session-flashback and a non-compositing
window manager. I actually use xmonad, but metacity --no-composite shows
the same behavior: instead of real transparency, the portion of the
desktop background corresponding to the terminal window's relative
position is drawn as the background, and is updated when the window
moves.
The attached screenshot demonstrates what this looks like in 14.04 with
metacity.
In Ubuntu 16.04, this no longer works: a solid black background is
displayed instead. However, if I downgrade gnome-terminal to the trusty
packages, it works as before.
To reproduce:
1. execute sudo apt-get install gnome-session-flashback
2. log in with 'GNOME Flashback (Metacity)' session
3. start gnome-terminal and set background to transparent
4. execute metacity --no-composite --replace
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gnome-terminal 3.18.3-1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44
Uname: Linux 4.4.0-64-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: GNOME-Flashback:GNOME
Date: Tue Mar 7 14:52:53 2017
InstallationDate: Installed on 2017-02-19 (16 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-terminal (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
** Attachment added: "Screenshot_ubutest-legacy-bios_2017-03-07_14:50:53.png"
https://bugs.launchpad.net/bugs/1670875/+attachment/4833193/+files/Screenshot_ubutest-legacy-bios_2017-03-07_14%3A50%3A53.png
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https://bugs.launchpad.net/bugs/1670875
Title:
"Fake" transparency, w/ Flashback session and non-compositing WM, no
longer works
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