The only 'support' available for KeePassX on Linux is through the KeePassX forum and in my experience the chances of getting a usefull answer there are pretty slim, so I can understand why someone would try here. That said, I've had no real problems with Auto-Type. It just works. Using KeePassX, that is. KeePass2 needs the .NET replacement Mono and the Auto-Type function doesn't work at all through that.
okay thanks, i figured out that the problems from some website are due to other sequences so it works now for all sites... but the shortcut doesn't work maybe i forget something, i just set in keepassX the global shortcut anything else i have to do?
Nothing else I can think of. I changed the default (wasn't that Ctrl+Alt+A?) to Ctrl+Alt+\ and used Ctrl+Alt+Z on another computer that had a keyboard with no \ key near the left Ctrl key and it all worked immediately.
There is an option below the global shortcut box which has to be set (the one about selecting the window based on the title of the item - I'm not sure what the English text is as I'm using a non-English version). Is that set by default? Can't remember.
Of course if the title of the item is very different from the title of the browser window, Auto-Type may not work. I have several entries in my database that required the Auto-Type-Window to be set manually.