Bug 179449 - Moving widgets around in "Show Dashboard" significantly slower than on normal desktop
Summary: Moving widgets around in "Show Dashboard" significantly slower than on normal...
Status: RESOLVED FIXED
Alias: None
Product: plasma4
Classification: Plasma
Component: general (show other bugs)
Version: unspecified
Platform: Compiled Sources Unspecified
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2009-01-03 04:16 UTC by Wong CS
Modified: 2009-12-06 19:52 UTC (History)
3 users (show)

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Latest Commit:
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Description Wong CS 2009-01-03 04:16:12 UTC
Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

When I click on "Show Dashboard" and grab on one of the widgets' handle to move it around, it's orders of magnitude slower than if I minimized/closed all windows and move the widgets using the view instead.

I'm using KDE 4.2 beta 2 in Kubuntu 8.10 (packages provided by Kubuntu). I think the issue should be pretty easy to simulate.

Thanks!
Comment 1 Wong CS 2009-01-07 07:05:37 UTC
As per Aaron's advice (http://aseigo.blogspot.com/2009/01/bugskdeorg.html):

[wongcs@phrenic:~]$ kde4-config --version                                                                                                      (01-07 13:48)
Qt: 4.4.3
KDE: 4.1.85 (KDE 4.1.85 (KDE 4.2 Beta2))
kde4-config: 1.0
Comment 2 Aaron J. Seigo 2009-01-07 07:44:08 UTC
thanks =)

btw, the reason for this, at least with desktop effects, is probably multiple: it's a second view on the same part of the scene, so it's painting twice (once on each scene) and while it is painting it is also blending with the other windows behind it, too.

on my machine it's slower when desktop effects are on, and faaast when desktop effects are off.

so .. some optimizations for the desktop effects scenario are probably needed.
Comment 3 FiNeX 2009-04-26 01:05:57 UTC
On current trunk (r959285), Qt 4.5.0, xorg 1.6.1 and nvidia drivers 180.44, moving plasmoid on dashboard is fast like the "normal" view.