link from ubuntu launchpad bug #1177137 to official kde bug tracking system. Reproducible: Always Steps to Reproduce: 1. suspend 2. resume 3. goto 1. Actual Results: memory usage increase from 40-50mb to 1.5g Setting the severity to major since KDE becomes really slow and start swapping due to the amount of memory used by kded4.
Please check if disabling "Power Management" from "System Settings > Startup and Shutdown > Service Manager" helps resolving the issue. This looks like a duplicate of bug 271934. For more information, please see http://kdepepo.wordpress.com/2011/05/11/troubleshooting-kded4-bugs/
It does it as well on my new laptop but way more slowly than on my old one. Both HP. HP ProBook 6460b (recent) 1st boot 2419 fortierv 20 0 1306m 42m 25m S 0,0 0,5 0:02.21 kded4 suspend 2419 fortierv 20 0 1306m 42m 25m S 0,0 0,5 0:02.98 kded4 2419 fortierv 20 0 1307m 43m 25m S 0,0 0,6 0:04.87 kded4 reboot 2428 fortierv 20 0 1306m 42m 25m S 0,0 0,5 0:01.82 kded4 suspend 2428 fortierv 20 0 1394m 44m 27m S 0,0 0,6 0:05.03 kded4 HP EliteBook 8530p (old) 2513 megalout 20 0 1562m 407m 26m S 0,0 10,6 0:26.09 kded4 2513 megalout 20 0 1756m 561m 26m S 0,0 14,6 0:30.85 kded4 2513 megalout 20 0 1975m 731m 28m S 0,0 19,0 0:44.23 kded4 Disabling power management logout/login 25085 megalout 20 0 1107m 35m 22m S 0,3 0,9 0:00.61 kded4 cannot suspend anymore due to power mgm being disabled 25085 megalout 20 0 1107m 36m 22m S 0,0 0,9 0:01.15 kded4
and yes disabling power mgm does solve the problem at the detriment of not being able to suspend/resume anymore.
Thanks for the update. *** This bug has been marked as a duplicate of bug 271934 ***