[Bug 345076] Re: Kubuntu 9.04 alpha6 panel corruption

[Jonathan Thomas]

*** This bug is a duplicate of bug 343944 ***
    https://bugs.launchpad.net/bugs/343944

Well, he's not a Kubuntu developer, that's for sure. No Kubuntu
developer in their right mind would blame python-kde4, a source package
that hasn't been used for two releases for corruption issues. The
default desktop doesn't even really use it. All it is are python
bindings to the KDE api, and since I have to explain that its pretty
clear that RK is not a developer. He probably is just trying to jerk my
chain. If you ever actually contribute anything more than a few bug
reports here and there I may start to respect your judgment, but as it
stands it is pretty clear that you do not know what you are doing.

But, being the nice guy that I am, I did do some more research on the
bug. (I am also a KDE developer) Previously, the consensus between KDE
developers was that this was a graphics driver bug. (For example,
https://bugs.kde.org/show_bug.cgi?id=189059 ,
https://bugs.kde.org/show_bug.cgi?id=187991)

In reality this is a somewhat complex issue, with many factors
determining whether or not the user will actually see the issue. It
should be noted that two issues have been reported in this bug report
initially. 1) The disappearing of the Plasma elements and b) the actual
corruption in the panel. The panel corruption likely is a driver bug,
and the disappearance issue is the complex one.

Anyways, on to the issue. As it turns out, graphical Plasma elements
start to disappear when the video card runs out of pixmap space.
Normally this doesn't happen, unless something is leaking pixmaps and is
not destroying them after they are done being used. This explains why
people using different video cards see this, and why not all people
using the same video card see this. it could even be said that one
person using the same driver as another but having a card with less VRAM
could see this more often than the one who had a card with more VRAM (if
he saw it at all)

Recently such a leak was found in Qt that fits the ticket. (Documented
here: http://bugs.kde.org/show_bug.cgi?id=183191) There was a leak in
the digital clock applet that exasperated the issue further, although it
was not the core cause of the bug. (And definitely even the KDE
component of this bug was not a kde4libs issue.)

In conclusion:

- This is not, I repeat *not*, and never ever was at all a kde4libs bug as you so adamantly proclaimed.
- Not a pykde issue, though this goes without saying
- Not an issue with the python-kde4 package which has been unused since Hardy
- This is a Qt issue which is scheduled to be fixed in Qt 4.5.2
- The KDE portion of this (which affected kdebase-workspace, but was not the main bug) has already been fixed in KDE 4.3 beta2.
- It was understandable to have thought that this was a driver issue, as that had been the previous consensus
- RK's little shenanigans would have not really changed anything, and the issue would have gone away once everybody upgraded anyway. All you did was cause me unnecessary stress in an attempt to piss me off. 

You are quite lucky that I even took time to research this answer and
give you this information, though I suppose I did it for those who care
more about the bug than for those who care more about pissing me off.

Anyway, this is a duplicate of bug 343944, and you better not screw that
one up.

** This bug has been marked a duplicate of bug 343944
   Epic plasma memory leak (0.1 mb / sec)

** Bug watch added: KDE Bug Tracking System #189059
   http://bugs.kde.org/show_bug.cgi?id=189059

** Bug watch added: KDE Bug Tracking System #187991
   http://bugs.kde.org/show_bug.cgi?id=187991

** Bug watch added: KDE Bug Tracking System #183191
   http://bugs.kde.org/show_bug.cgi?id=183191

** Changed in: python-kde4 (Ubuntu)
       Status: New => Invalid

-- 
Kubuntu 9.04 alpha6 panel corruption
https://bugs.launchpad.net/bugs/345076
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