[Mageia-dev] Anybody having high CPU by kded4 after upgrading to 4.6.90?

Fri Jul 1 01:10:46 CEST 2011

+> The solution which worked most of the time for such issues in kde 4.6.xx was:
+> 1. open a terminal
+> 2. run killall plasma-desktop
+> 3. plasma-desktop
+>
+> the plasmoids and the desktop come back, and kded4 stops using that much CPU.
+>
+> Last time I looked what it was looking CPU at, it was caused by some run-away timer loop 
+
+> deep in kdelibs, but as those issues are quite random I haven't figured out what exactly causes this. 
+
+
+Евгений, thank you, but this is not a solution.
+
+It is not a solution because, as soon as plasma-desktop is back, kded4 takes the same 55...75% CPU.
+
+It is not a solution because, even if it were a temporary fix, it needed to be run after each and every login.
+
+Now, I know my KDE is somewhat b0rken, because akonadiserver can't start -- but I could live just fine this way in KDE 4.6.3-4.6.4, if not even better than with it.
+
+So I should report this as a bug, however I won't do it as long as I'm the only Cauldron user to experience it.
+
+OTOH, let me tell you how to crash *any* KDE4 version (have to report it upstream, works on F15 too):
+1. Folder View for the Desktop.
+2. Click on a desktop icon, F2 (rename), select the text, right-click (as a reflex to find a menu with Copy);
+3. plasma-desktop glorious crash.
+
+Here's the KDE bug that was fixed by accident in KDE 4.6.90:
+Upstream bug 235020, with duplicates 228036, 236800, 256257, 255393, 256993, 257591, 262912, 264287, 264664, 265064, 265823, 266245, 270591, 272198, 272662, 274792, 274135, 274659, 275301, 275906, 275906, 276020, 276261.
+In short: KCharSelect crashes in some circumstances.
+How to make KCharSelect crash on any version up to and including 4.6.4:
+1. Open KCharSelect and make it have the minimum horizontal size (it should display 18 characters on a row; if it doesn't, keep it at this size nevertheless);
+2. Select the "DejaVu Sans" or any other DejaVu typeface.
+3. Keep "European Alphabets" in the first drop-down list.
+4. In the second drop-down list, start to switch the code pages between the available ones, in order:
+-- Basic Latin
+-- Latin-1 Supplement
+-- Latin Extended A
+-- Latin Extended B
+-- Latin Extended Additional
+-- Latin Extended C
+-- Latin Extended D
+and so on.
+5. It should have crashed by now. If not, keep switching back and forth between the code pages until it does!
+The bug is actually triggered by unknown errors in some fonts (the DejaVu family being one of them).
+
+It's funny to use KDE4 (I was a GNOME guy, that is, until GNOME Shell was announced). Except that kded4 is not funny.
+
+Best regards,
+R-C aka beranger
+