On 22.06.20 18:51, MERLIN Philippe wrote:
For the first time, I'm going to be ranting. I have been using Debian Linux for over 15 years and I appreciate the quality of this system, the speed of correction by software maintainers in the event of a major bug. On May 31 I opened a Debian Bug # 961913 entitled "Kmail: the access and reading of the received messages is often very slow" on the advice of Martin Steigerwald I opened on June 1 also a Bug on bugs.kde. org # 422336 The analysis of this Bug was completed by Martin Steigerwald and Marc Mezzarola who found that the fault was akonadi_maildir. This bug is really penalizing it happened during the migration of Kmail from 4: 19.08: 3-1 to 4: 20.04: 1-1 if we have to read a dozen messages reading often takes more than a minute between each reading messages especially if we decide to transfer them to the trash. This version 4: 20.04: 1-1 is also that of the Debian testing version and I am surprised that there are no more reports on this Bug, are very few people using Kmail and Pop3? Another surprise and regret to date I do not have the impression that a developer has addressed the problem for the fixed. Philippe Merlin
I am sorry for the inconveniences you are suffering and my reply will not solve your problem, but is only to answer on your questions if others are using Kmail. No, I myself suffered everything related to akonadi so much in the past, that I finally did a fresh KDE install without installing the task-kde-desktop but instead installing the needed KDE Plasma components with --no-install-recommends step by step manually in order to avoid to draw in konqueror and any akonadi related apps. Like this I became a very satisfied KDE Plasma user for long time now!
The trouble resides in task-kde-desktops, which draws in the package kde-standard, and kde-standard then installs the akonadi related packages, which in my experience caused all the problems with the inappropriate responsiveness of the graphical desktop KDE. While before suffering many times my older hardware to spontaneously stopping to respond nicely to my GUI actions, I never observed these problems again since I avoid the mentioned KDE apps! KDE Plasma on my old hardware now runs like a a charm. No need for LxQt or a like, KDE Plasma is doing it the same, I intensively tested and compared it.
So, I am sharing your rant. Some "standard" KDE apps do not keep up with the performance of KDE Plasma and I am surprised that they are a kind of a Debian recommendation by becoming installed by the task-kde-desktop package. In order to provide constructive criticism I collected a list of packages for suggesting them to maybe in the future become a new kde-minimum-install package (leaving out the akonadi tree of programs, for instance). If someone would have the authorization and knowledge to work on such package, please contact me, I am motivated to help polishing the Debian KDE experience!
Marco.