Comment 5 for bug 671763

So do I.
The bug appears for me in gnome and openbox.I don't use KDE.
Can you post dpkg -l| grep ibus. This is mine

ii ibus 1.3.7-1ubuntu3 New input method framework using dbus
ii ibus-anthy 1.2.1-1 anthy engine for IBus
ii ibus-gtk 1.3.7-1ubuntu3 New input method framework using dbus
ii ibus-pinyin 1.3.10-1 pinyin engine for ibus
ii ibus-pinyin-db-android 1.3.10-1 pinyin engine for ibus, android database
ii ibus-table 1.3.0.20100621-1 table engine for IBus
ii libibus2 1.3.7-1ubuntu3 New input method framework using dbus
ii libusb-0.1-4 2:0.1.12-15ubuntu2 userspace USB programming library
ii libusb-1.0-0 2:1.0.8-2 userspace USB programming library
ii libusbmuxd1 1.0.4-1 USB multiplexor daemon for iPhone and iPod Touch devices - library
ii python-ibus 1.3.7-1ubuntu3 New input method framework using dbus

I have also observed that python takes almost half my cpu time and I am almost sure this is linked with ibus.

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
18648 alain 20 0 769m 185m 32m R 43.7 6.1 39:51.65 firefox-bin
 1697 alain 20 0 243m 12m 4624 R 43.4 0.4 540:26.86 python
 1067 root 20 0 142m 45m 5520 S 3.3 1.5 31:44.88 Xorg