kscreen spams my systemlog

Bug #1579735 reported by Maria Schmidt on 2016-05-09
14
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Kubuntu PPA
Undecided
Unassigned
kscreen (Ubuntu)
High
Unassigned

Bug Description

Dear Maintainers,

kscreen spams my systemlog with reapeating a few lines over and over again:

09.05.16 13:41 PC-name org.kde.KScreen[1466] kscreen.xcb.helper: #011Output: 67
09.05.16 13:41 PC-name org.kde.KScreen[1466] kscreen.xcb.helper: #011Property: Backlight
09.05.16 13:41 PC-name org.kde.KScreen[1466] kscreen.xcb.helper: #011State (newValue, Deleted): 0
09.05.16 13:41 PC-name org.kde.KScreen[1466] kscreen.xcb.helper: RRNotify_OutputProperty (ignored)

Thanks - Maria

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: kscreen 4:5.5.5-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Mon May 9 13:36:36 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-05-02 (6 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: kscreen
UpgradeStatus: No upgrade log present (probably fresh install)

Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in kscreen (Ubuntu):
status: New → Confirmed
7oby (tobias-hain) wrote :

Same here - although I have KDE 5.6.x backports enabled (PPA) and launchpad is not supposed to track bugs against PPAs:
http://www.kubuntu.org/news/plasma-5-6-4-available-in-16-04-backports/

There is an upstream Bug for this and meaning while marked as fixed:
https://bugs.kde.org/show_bug.cgi?id=361688

Upstream is against kscreen 5.6.x while Xenial includes 5.5.5-0ubuntu1. However on my backported 5.6.5-0ubuntu1~ubuntu16.04~ppa1 I do see the same output as the thread author:

Jul 24 12:00:38 thinktank org.kde.KScreen[2990]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored)
Jul 24 12:00:38 thinktank org.kde.KScreen[2990]: kscreen.xcb.helper: #011Output: 67
Jul 24 12:00:38 thinktank org.kde.KScreen[2990]: kscreen.xcb.helper: #011Property: Backlight
Jul 24 12:00:38 thinktank org.kde.KScreen[2990]: kscreen.xcb.helper: #011State (newValue, Deleted): 0

Therefore it's not unlikely that the upstream fix fixes this Xenial Xerus bug as well.

Who said launchpad isn't designed to track ppa's bugs?

affects: kscreen (Ubuntu) → kubuntu-ppa
Changed in kscreen (Ubuntu):
status: New → Confirmed
Changed in kscreen (Ubuntu):
importance: Undecided → High
Alex Ivkin (sogetthis) wrote :

After getting really annoyed at this bug, and it not being fixed I've found a workaround.
Pipe all KScreen stdout and stderr to null.

Edit /usr/share/dbus-1/services/org.kde.kscreen.service
To say

[D-BUS Service]
Name=org.kde.KScreen
Exec=/bin/sh -c '/usr/lib/x86_64-linux-gnu/libexec/kf5/kscreen_backend_launcher>/dev/null 2>/dev/null'

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