I can confirm the exact same behavior on Ubuntu 14.04 with a Spanish keyboard. I'm not sure whether it's systematic or intermittent, since I think I rarely search for such characters, and I hadn't observed this until now.
I've observed a similar but INTERMITTENT behavior on both Chrome and Firefox with some particular webpages with javascript, where hitting the Alt Gr key resulted in loosing the focus from the input field being edited. I always thought that was a bug in the javascript code of those web pages. Now I dubt this is may be the same issue than in Gedit and be a general problem in Ubuntu. If it is, then it is intermittent and apparently random (but when it starts happening it will keep happening until, I don't know, a reboot or something). Please reconsider importance (whether or not this is gedit only) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gedit in Ubuntu. https://bugs.launchpad.net/bugs/1301784 Title: cannot search text beginning with Alt(-gr) special character Status in “gedit” package in Ubuntu: Confirmed Bug description: background: gedit 3.4.1-0ubuntu1 ubuntu 12.04 1. Open text file with Gedit 2. Hit CTRL-F to search 3. try to give i.e. "@deco" with finnish keyboard where the character '@' comes from key combination AltGr + 2 expected: can enter text starting with special characters to search with into the search box result: search box closes when pressing Alt -> and typing the text that was intended for the search box ends up in the document itself. workaround: copy-paste the search string into search box To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1301784/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

