Bug 397621 - Black stripe on the right side of the monitor.
Summary: Black stripe on the right side of the monitor.
Status: RESOLVED DUPLICATE of bug 397823
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-08-19 14:08 UTC by Unknown
Modified: 2018-08-24 09:34 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
When starting the wayland session the workspace appears like this (1.05 MB, image/png)
2018-08-19 14:08 UTC, Unknown
Details
Lowering the resolution makes the black stripe disappear (1016.28 KB, image/png)
2018-08-19 14:09 UTC, Unknown
Details
After setting back the resolution to 1080p the default panel displays correctly but the wallpaper doesn't (948.56 KB, image/png)
2018-08-19 14:09 UTC, Unknown
Details

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Description Unknown 2018-08-19 14:08:06 UTC
Created attachment 114496 [details]
When starting the wayland session the workspace appears like this

Hi guys, i'm not sure if this is the right section or not, i'm having a hard time distinguishing the various kde components. (I'm not sure if it's a kwin/kscreen/plasma-workspace issue. 

After upgrading to KDE Plasma 5.13.4 on my Plasma (Wayland session) a black vertical stripe appeared on the right side of the monitor. It seems that the workspace has the wrong aspect Ratio (44 cm x 30 cm) but i can drag windows over it and they are visualized correctly. If i lower the resolution and set it back to 1920x1080 the default panel fills the monitor width how it's supposed to, but the wallpaper doesn't change size even if a select a different image.

I will attach some screenshots to better understand the issue.
Comment 1 Unknown 2018-08-19 14:09:01 UTC
Created attachment 114497 [details]
Lowering the resolution makes the black stripe disappear
Comment 2 Unknown 2018-08-19 14:09:43 UTC
Created attachment 114498 [details]
After setting back the resolution to 1080p the default panel displays correctly but the wallpaper doesn't
Comment 3 Unknown 2018-08-19 14:10:40 UTC
How to reproduce the issue:
I'm not sure. It only happens with this specific monitor (Dell s2415h) with my HP 23xi secondary monitor i don't have this issue.
Comment 4 Unknown 2018-08-19 15:30:29 UTC
I temporarily fixed the issue rollbacking to 5.13.3-1 the following packages:
-kscreen
-kwin
-plasma-wayland-session
-plasma-workspace

I will try to update them one by one to localize the problem as soon as i can.
Comment 5 Patrick Silva 2018-08-23 18:51:20 UTC
duplicate of bug 397628?
Comment 6 David Edmundson 2018-08-24 09:34:05 UTC
I think Ken's one is different as it's exactly 1/4 and we know he's scaling. That's a Qt issue I think we've sorted.

This can't be scaling, it's off by only a small amount. It does match the other report you linked though.

*** This bug has been marked as a duplicate of bug 397823 ***