Eclipse flickering on new line

Question

I'm using Ubuntu 16.04 and Eclipse Neon. Everything looks OK but when I press enter, the new line flickering. Switching to the GTK2 solved the problem but I have some other issue in GTK2 such as scroll bar coloring and button coloring in the Dark theme.

Since I don't have any problem in GTK3 and the flickering is the only problem I have, how can I fix it in GTK3?

Here you can see how it flickers in GTK3

EDIT

Recently I tried Eclipse Oxygen 4.7.2 on Ubuntu GNOME, but the problem still exists. It Seems it's not the Unity problem.

Perigee

You should open a bug ticket inside the Eclipse bugzilla – Avionics

@Avionics This bug reported before: bugs.eclipse.org/bugs/show_bug.cgi?id=492371#c17 and only switching to the GTK2 can solve this problem but as I said on my question switching to the GTK2 can cause other Issues. – Perigee

It's annoying, but does it really impact your ability to function optimally? – Beryllium

@LeoWilson IMHO, If it's annoying then it can create less concentration. – Perigee

Try to start eclipse with option like "--disable-gpu" For eclipse it may be '-Dprism.order=j2d' (not tested). EDIT I had a similar problem with Visual Studio Code. I found the solution: github.com/Microsoft/vscode/issues/25934 – Dad

@Hermann77 didn't solve the problem – Perigee

Answer 1

update 2018/DEC/09

if you experience a background flickering in the eclipse editor on each move of the mouse pointer:

you can tell Eclipe which gtk-version to use:

#Gtk3 forced:
export SWT_GTK3=1
eclipse

#Gtk2 forced:
export SWT_GTK3=0
eclipse

for Eclipse Oxygen 3 (Version: 4.7.3, March 2018, Build id: 20180308-1800):

put

export SWT_GTK3=0

inside your ~/.profile (and restart x-server)

worked for me on Ubuntu 17.10 with Plasma and xorg and xserver-xorg-video-amdgpu: 1.4.0-1

Sickener

tell Eclipse which gtk-version to use: #Gtk3 forced: export SWT_GTK3=1 eclipse #Gtk2 forced: export SWT_GTK3=0 eclipse – Sickener

Or just run SWT_GTK3=0 eclipse – Unpleasant

Answer 2

First check the value of GTK_IM_MODULE in your environment by executing

echo $GTK_IM_MODULE

In my case the output was “xim”. But Eclipse expect it to be “ibus”. So enter the following command in a terminal session to set it to the value.

export GTK_IM_MODULE="ibus"

use below scripts for run it:

#!/bin/bash
export SWT_GTK3=0
export UBUNTU_MENUPROXY=0
export GTK_IM_MODULE="ibus"
cd [Eclipse Directory]
./eclipse -showlocation

don't forget make it run able:

chmod +x eclipse.sh

Bertram

GTK_IM_MODULE was ibus for me. Still has the problem. – Perigee

Worked for me. Also some discussion here: subhadipsblog.wordpress.com/2019/01/25/… – Papandreou

Answer 3

I had the same issue and here is what worked for me.

Create a bash script file (e.g. eclipse_gtk2.sh) containing the following commands.

#!/bin/bash
export SWT_GTK3=0
export UBUNTU_MENUPROXY=0
cd <path to eclipse directory where the excutable is found>
./eclipse -showlocation

Make eclipse_gtk2.sh executable

chmode +x eclipse_gtk2.sh

then simply run the file ./eclipse_gtk2.sh

Hope it also works for you.

Cheers

Johns

Thanks, but I already mentioned on my question that with switching to the GTK2 I have some other issues. I took screenshot: i.sstatic.net/URIdZ.png – Perigee

That is because you are using the dark theme. Unfortunately the Dark theme does not look good with GTK2. Try using the classic or gtk theme instead. Although I prefer the dark theme, I chose to have a better editing performance over a dark interface. – Johns

Voted up for you but I think it's time for me to moving to the non unity desktop. It seems there is no way to make it work properly on GTK3 and unity. I use Eclipse for more than 11 hours a day. to be frank I can not do that with non dark theme. – Perigee

In that case you can install Eclipse Color Theme from the Market place and make the code editing area dark. Choose Classic or GTK for the GUI and then choose a different color scheme for the syntax highlight. Not perfect, but somewhere in between. – Johns

Thanks, I made my own dark highlighting but in non dark theme top, bottom, scrolls, tabs, ... will be white and it cause too much distraction. – Perigee