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I cannot find the compose key sequence for double acute vowels like ő, and I need them a lot when typing in Hungarian.

I don't want to switch to a Hungarian keyboard layout as I type in Dvorak and having to switch to qwerty/qwertz every now and then would not be easy.

The keys seem to be listed here, but I can't find a way to type them.

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up vote 1 down vote accepted

On my system ő is <compose> <=> <o>:

    $ grep "Multi.*DOUBLE ACUTE" /usr/share/X11/locale/en_US.UTF-8/Compose
    <Multi_key> <equal> <O>                 : "Ő"   U0150 # LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
    <Multi_key> <equal> <o>                 : "ő"   U0151 # LATIN SMALL LETTER O WITH DOUBLE ACUTE
    <Multi_key> <equal> <U>                 : "Ű"   U0170 # LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
    <Multi_key> <equal> <u>                 : "ű"   U0171 # LATIN SMALL LETTER U WITH DOUBLE ACUTE
    <Multi_key> <equal> <Cyrillic_U>        : "Ӳ"   U04F2 # CYRILLIC CAPITAL LETTER U WITH DOUBLE ACUTE
    <Multi_key> <equal> <Cyrillic_u>        : "ӳ"   U04F3 # CYRILLIC SMALL LETTER U WITH DOUBLE ACUTE

Make sure you have the basics of XCompose working before trying the more advanced ones or creating your own.

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Thanks, in's working - I just didn't know how to look up the combination. Also, it turns out that Compose+=+e is the euro sign (€), which is also much useful, esp. in Europe. – Attila O. Nov 30 '11 at 0:18

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