Ghosting with "Use transparency from system theme" enabled on an external monitor

[Dan Watkins]

Steps to Reproduce:

1) Open gnome-terminal on an external monitor (or move an existing session there)
2) Open a second tab
3) Produce some output on the current tab
4) Switch to the other tab

Expected Behaviour:

  No ghosting.

Actual Behaviour:

  The previous content is temporarily present behind the new content.

Workarounds:

  Disable "Use transparency from system theme" in Profile Preferences.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-terminal 3.24.2-0ubuntu4
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Nov 20 12:14:28 2017
InstallationDate: Installed on 2017-10-23 (27 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)

[Dan Watkins (oddbloke)]

Upon further inspection, this isn't actually a tab-switching issue. Hit Return a bunch of times, and then Ctrl-L; your prompts will ghost temporarily. Furthermore, my blinking cursor also ghosts from time to time.

[Egmont Koblinger (egmont-gmail)]

Maybe related to bug 1726262?

[Dan Watkins (oddbloke)]

On Fri, Nov 24, 2017 at 10:23:18AM -0000, Egmont Koblinger wrote:
> Maybe related to bug 1726262?

It certainly sounds similar and, indeed, I can reproduce that on my
external monitor.