compositor-x11: Use XKB detectable autorepeat if possible

If we have XCB XKB support, use XKB's detectable autorepeat, which
generates repeat sequences as a series of
press-press-press-[...]-release events, rather than
press-release-press-release-[...].

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
1 file changed