Bug 363350

Summary: Window sometimes not getting redrawn with EGL compositing enabled
Product: [Plasma] kwin Reporter: Linus Kardell <linus.kardell>
Component: eglAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: minor    
Priority: NOR    
Version: 5.6.4   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:

Description Linus Kardell 2016-05-20 22:23:40 UTC 
Windows sometimes do not seem to be redrawn properly when EGL composititing is used. For example in Firefox if you highlight some text and then click somewhere it unhighlights the text. However the the text still looks highlighted. If you scroll afterwords it seems to force it to redraw. It happens elsewhere as well. It's most noticeable when editing text as your edits do not appear on the screen immediately. It does not seem to happen with GLX compositing.

Reproducible: Always

Steps to Reproduce:
1. Enable EGL compsiting
2. Highlight text in Firefox
3. Click somewhere on the page
4. Scroll

Actual Results:  
The highlight does not seem to disappear until you scroll.

Expected Results:  
The highlight should immediately disappear when you click.

openSUSE Leap 42.1
KDE from KDE:frameworks5 BuildService repo
Intel Core-i5 3230M with Intel HD Graphics 4000
Mesa 11.0.8
Comment 1 Thomas Lübking 2016-05-21 07:37:46 UTC 
Bug in EGL/DRI2
Try DRI3 or simply use GLX, EGL is not GLES and and doesn't provide (you) systematic advantages.

*** This bug has been marked as a duplicate of bug 338150 ***