Comment 15 for bug 1395547

*Note*: the below is copy & paste from https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1395547 as per request by Thaddaeus Tintenfisch (thad-fisch) on 2014-12-13. Let me know if I should copy other things from there or if having a reference to that is enough / acceptable.

Just upgraded to Xubuntu 14.10, had issues with fglrx (see http://askubuntu.com/questions/552795/xubuntu-14-10-upgrade-issues-with-fglrx), went back to radeon drivers. Now it looks to be OK, however after locking the screen using xflock4 and unlocking, I get these three processes using a lot of CPU (this is on 4-core Phenom II X4 N950):

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 1572 root 20 0 262892 56672 26480 R 89.7 1.4 6:48.70 Xorg
 5025 usr 20 0 312116 11336 4632 R 36.9 0.3 0:17.42 xfce4-volumed
 5036 usr 20 0 327328 10556 5760 S 31.5 0.3 0:13.38 xfsettingsd

Additional information:

- Killing and restarting xfsettingsd and xfce4-volumed resolves the issue until next sleep cycle
- When running only xfce4-volumed, but not xfsettingsd, the issue does not appear
- This can be reproduced always. ATI Radeon Mobility HD 5650 video card
- The CPU usage does not seem to go down after a while
- If I got it correctly, it looks like some other processes are also going to high CPU usage after killing xfce4-volumed. I think I saw xfce4-xkb-plugin going to 95% CPU usage
- The issue happens before unlock, i.e. locking then pressing a key to get a login dialog, then switching to vty1 and doing a top yields the above

Not sure what else I should check / post that can be useful for troubleshooting, let me know.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xfce4-settings 4.11.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: XFCE
Date: Sun Nov 23 18:34:02 2014
InstallationDate: Installed on 2014-04-24 (213 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: xfce4-settings
UpgradeStatus: Upgraded to utopic on 2014-11-22 (0 days ago)