Bug 538894 - Editor exhibiting graphical anomalies when changing lines
Summary: Editor exhibiting graphical anomalies when changing lines
Status: CLOSED WONTFIX
Alias: None
Product: Platform
Classification: Eclipse Project
Component: SWT (show other bugs)
Version: 4.9   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-SWT-Inbox CLA
QA Contact:
URL:
Whiteboard: stalebug
Keywords: needinfo, triaged
Depends on:
Blocks:
 
Reported: 2018-09-10 15:41 EDT by James Rice CLA
Modified: 2021-11-20 04:57 EST (History)
2 users (show)

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Description James Rice CLA 2018-09-10 15:41:09 EDT
Upgraded from Oxygen to Photon.  After which the editor exhibits graphics "glitches" when changing lines, i.e. hitting enter or backspace (when at the beginning of a line).  The part of the editor window beneath the cursor shifts to the left such that text has moved half off the window to the left and an additional scrollbar is in the middle of the window.  Above the cursor is unchanged and the entire original scrollbar is still on the right.  After about a quarter second it corrects itself.  Tried to get a screen shot but was unsuccessful.

Running Ubuntu 16.04 in a VM.  Java 1.8.0_172 (tried with 10.0.2 also).
Comment 1 Andrey Loskutov CLA 2018-09-10 15:42:43 EDT
I assume your GTK3 is too old. Can you update to a modern Ubuntu?
Comment 2 James Rice CLA 2018-09-11 10:34:34 EDT
(In reply to Andrey Loskutov from comment #1)
> I assume your GTK3 is too old. Can you update to a modern Ubuntu?

No.  This version of our production software must run in Ubuntu 16.04.  The documentation indicates the documentation dated 5/18 indicates that Eclipse is tested against this platform.

https://www.eclipse.org/projects/project-plan.php?planurl=http://www.eclipse.org/eclipse/development/plans/eclipse_project_plan_4_8.xml#target_environments
Comment 3 James Rice CLA 2018-09-11 10:53:21 EDT
Also, I checked and the GTK 3 version is 3.18.9 which is the latest version in 16.04
Comment 4 Eric Williams CLA 2019-02-21 16:39:53 EST
Does it happen against Ubuntu 18.04?
Comment 5 Eric Williams CLA 2019-09-16 13:32:12 EDT
No recent Eclipse has Ubuntu 16.04 as a target environment any longer. Please try with an Ubuntu 18.04 installation to see if the issue reproduces.

We had an issue with editor redrawing when the "xim" GTK input module was set. Please make sure that is unset and see if the issue continues to reproduce.
Comment 6 Eclipse Genie CLA 2021-11-20 04:57:57 EST
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug.

If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.