I have installed the package from -proposed and can confirm that it fixes the bug. However, on my system the LxDesign theme (which was mentioned in comment 5 to test for) didn't have an animated progress bar in the stable version, so I used Lubuntu-default theme for the test:
The Lubuntu-default showed a CPU usage of up to 20% for lxapnel/Xorg and it with the proposed package it fell down to 1-5% while the Simple-Green showed up to 5% of CPU for both the stable and proposed version. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776776 Title: CPU increase when using lxtask + 11.04 gtk theme To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-artwork/+bug/776776/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs