[Bug 948427] Re: knotify4 consumes many CPU cycles if kde sound system is used for notifications

[Bug Watch Updater]

Launchpad has imported 6 comments from the remote bug at
https://bugs.kde.org/show_bug.cgi?id=295462.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
https://help.launchpad.net/InterBugTracking.

------------------------------------------------------------------------
On 2012-03-07T11:26:40+00:00 jhoechtl wrote:

User-Agent:       Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2
Build Identifier: 

knotify4 when using phonon gstreamer backend consumes way to much CPU
cycles.

Reproducible: Always

Steps to Reproduce:
0. KDE 4.7.4 and upwards (possibly earlier versions)
1.System settings / Application and System Notifications: Player Settings: Assure, that "Use the KDE sound system" is ticked.
2.System settings / Multimedia / Phonon / Backend: Assure that GStreamer is the Phonon backend (here version 4.5.1.)
3.Open Terminal, run "top", let the system go idle. knotify4 is on top (using 2% CPU, speed dependent, of course)



3. Disabling sound notifications to "No audio output" (log out after setting) or using vlc as the phonon backend makes CPU usage go away.

Calling it a major bug as it consumes loads of CPU cycels for no good,
causing thermal heat, dying laptop batteries and makes upcoming RC6 GPU
sleep rather pointless for KDE gstreamer default installations.

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/2

------------------------------------------------------------------------
On 2012-03-08T11:10:22+00:00 Myriam Schweingruber wrote:

The problem doesn't appear for me here, using the phonon-backend-
gstreamer 4.6. Could you please upgrade and see if that still happens
for you?

Using Kubuntu 12.04 beta1, KDE 4.8.1, Qt 4.8

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/4

------------------------------------------------------------------------
On 2012-03-08T13:43:20+00:00 jhoechtl wrote:

I will have to wait until Kubuntu 12.04 is out. Or is there a way to
test gstreamer backend V 4.6 on Kubuntu 11.10?

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/5

------------------------------------------------------------------------
On 2012-03-08T15:48:05+00:00 Myriam Schweingruber wrote:

(In reply to comment #2)
> I will have to wait until Kubuntu 12.04 is out. Or is there a way to test
> gstreamer backend V 4.6 on Kubuntu 11.10?

Keep an eye on https://launchpad.net/~kubuntu-ppa/+archive/backports,
they should backport it these days.

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/6

------------------------------------------------------------------------
On 2012-05-13T18:58:52+00:00 jhoechtl wrote:

This bug does not persist any more with KDE 4.8.2 (as of Kubuntu 12.04)

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/7

------------------------------------------------------------------------
On 2012-05-16T08:22:25+00:00 Myriam Schweingruber wrote:

Thank you for the feedback, closing then.

Reply at: https://bugs.launchpad.net/kde-runtime/+bug/948427/comments/8


** Changed in: kde-runtime
       Status: Unknown => Fix Released

** Changed in: kde-runtime
   Importance: Unknown => High

-- 
You received this bug notification because you are a member of Kubuntu
Bugs, which is subscribed to kde-runtime in Ubuntu.
https://bugs.launchpad.net/bugs/948427

Title:
  knotify4 consumes  many CPU cycles if kde sound system is used for
  notifications

To manage notifications about this bug go to:
https://bugs.launchpad.net/kde-runtime/+bug/948427/+subscriptions