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xen-devel
Re: [Xen-devel] [RFC] keymap support for PVFB
Gerd Hoffmann <kraxel@xxxxxxx> writes:
> Hi,
>
>> In the longer run, I'd like to replace LibVNCServer by code from QEMU
>> alltogether. In the short run, working keymaps are quite welcome.
>
> Hmm, so this works by telling the vnc server side which keymap the
> client is using I guess?
Exactly. Not ideal, but better than nothing.
> I've tried to tackle the same issue by hacking the vnc client side to
> send us keysyms no matter what the local keyboard mapping is. So I can
> have any keyboard map loaded on the host, qemu-dm/vncfb sees us keysyms
> nevertheless and passes the correct scancodes to the guest OS.
You mean scan codes, don't you? Key symbols are the XK_a and so
forth.
Passing scan codes in addition to key symbols makes sense. sdlfb
works that way; it gets both from SDL, then maps the scan code to the
vkbd protocol's key encoding (Linux input layer key codes).
Would you mind sharing your code when it's ready?
> Problem with that is that I don't have keysyms to send for keys which
> are not present on a us keyboard. That affects the 102th/105th key on
> i18n keyboards ("<>|" key on a german keyboard), and I think japanese
> keyboards have a few more keys which are just dead ...
sdlfb.c maps 105 keys.
For additional keys, have a user of the keyboard in question find the
scan code with xev.
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