Cursor disapears after CTRL+C

[Barnold]

When using gedit on the 32 or 64 bit version of Ubuntu 14.10 pressing CTRL+C to copy text will cause the mouse cursor to disapear until gedit is restarted or the document is saved. Copying and pasting using right click does not cause the issue. I've experienced this issue on multiple computers with vastly different hardware. One computer is using proprietary nVidia drivers and the others are not.

1)lsb_release -rd
Description: Ubuntu 14.10
Release: 14.10

2)apt-cache policy gedit
gedit:
  Installed: 3.10.4-0ubuntu6
  Candidate: 3.10.4-0ubuntu6
  Version table:
 *** 3.10.4-0ubuntu6 0
        500 http://us.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
        100 /var/lib/dpkg/status

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Peter Roos (roospeteristvan)]

Actually, pressing CTRL alone is enough to trigger the bug.

[Sebastien Bacher (seb128)]

Thank you for your bug report, I can't confirm the issue though

[Peter Roos (roospeteristvan)]

How to trigger the bug:

1. Open gedit.
2. Click inside the editing area.
3. Press CTRL.
4. Move the cursor inside the editing area. In this case, the cursor is gone, or sometimes blinks for a fraction of a second. If you move the cursor outside of the editing area, it will be okay again. Moving it back will make it buggy again.

Workaround: open one the menus (like File), and the cursor will behave as expected.

[Peter Roos (roospeteristvan)]

These guys are a bit ahead of us: http://askubuntu.com/questions/456739/cant-get-mouse-back-in-gedit-after-shift-key-is-pressed
Sebastien Bacher (seb128), please confirm that you have not overlooked this bug.

[Sebastien Bacher (seb128)]

I've looked at this bug, and not over ;-) (it's not on top of any todolist/not something I plan to work on though)

[Peter Roos (roospeteristvan)]

Thanks. I switched 'Keyboard Input Method System' from IBus to none, as suggested in the askubuntu question above.
I did some research about it, and as I use English and Hungarian input sources, I think that I don't need IBus at all. Should I worry about nasty side effects? The bug disappeared after reboot, and I can type well, so for now, it's an alright workaround.

[Sebastien Bacher (seb128)]

disabling ibus shouldn't have side effects in your case no

[Adam Matejko (adam-matejko)]

Installed ibus-gtk (ibus-gtk3 is already installed) and now everything is working properly.

[Peter Roos (roospeteristvan)]

I was affected by this bug at the end of 2014. Now I'm running Ubuntu 15.10 64bit, and can't reproduce the bug. I suggest marking this bug as 'invalid'.