KVM VNC altgr missing

Hi, I have installed Debian 7 with cloudmin KVM, on VNC not functioning the altgr key, I cannot use the "\" key, I use the hungarian keymap.

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Does this happen regardless of whether you select the Flash or Java graphic consoles?

I tested with flash, java and tightVNC but is the same issue.

Is this specific to the hungarian keymap?

On hungarian keymap the "\" is under Q, and with altgr+Q it can activated.

Sorry, what I meant was if you are using a different keymap, does the same problem happen?