I did an Opensuse 12.1 -> 12.2 update and KDE 4.8.5 -> 4.9.5 over the weekend.
I can't say that Kmail was dead but it was extremely slow. Having experienced many problems starting with KDE 4.4 I decided to run the system monitor to see what was happening.
Virtuoso was off the charts active. I let it run for 8 hours (overnight). The next morning, everything had calmed down and response time was somewhat back to normal. One online update to bring in required patches and another overnight run and for the most part life is good.
I don't pretend to understand Akonadi,Nepomuk, Virtuoso or their interactions. I just know from all the various posts these three in someway have a huge impact on KDE. Turning off file indexing and/or email indexing seems to help, but patience in letting them (which ever one is responsible) run their course has lead to a normal existence again.
I would also say the making sure you have all the correct versions is critical. One thing I did stumble on within Opensuse repositories was making sure that when using KDE beyon 4.8 (considered the stale release for Opensuse 12.2 in my case) that you also have the Qt 4.x.x repository available, because KDE > 4.9 needs all of the latest Qt. That maybe obvious to most but it wasn't to me and it did resolve many of the issues I was having.
It seems that Kmail, Kontact etc works when there are variations of versions, but there are always problems that can't be resolved given the lack of data posted for most of our problems. So simply making sure that you are pulling all KDE from the repository that hold the version you want to run and have the most up-to-date Qt repository helps.
On Thursday, February 07, 2013 05:25:55 PM Werner Joss wrote:
> well, I just did an update kde 4.9.5 -> 4.10, kubuntu 12.04, and now my
> kmail is dead - it just sits there with spinning wheels on inbox + other
> folder. no mail retrieve, nothing.
> needless to say, no setup changes before, server (imap) is ok, I can see my
> mails perfectly in trojita (which I'm using to write this to the list). any
> advice ?
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