I can also confirm this. When maximizing Thundrbird from the bottom panel top shows that Xorg spikes to 50, 80, 90 percent. Switching between mail page and lightning calendar page also spikes it. Thunderbird is slow and laggy in Karmic.
uname -a Linux i600m 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux -- Xorg eats processor cycles while waiting for slow Internet https://bugs.launchpad.net/bugs/297143 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs