http://bugs.winehq.org/show_bug.cgi?id=6971
--- Comment #365 from Manuel Soukup linuxuser-sky@gmx.de 2010-07-03 12:45:07 --- It seem like Ubuntu 10.04 does not ship X 1.8:
" X Server 1.8 with its HAL replacement and new configuration system can be found in Fedora 13 and openSUSE 11.3 once released. Distributions shipping soon like Ubuntu 10.04 LTS are sticking to using X Server 1.7.x, but X Server 1.8 (or ideally X Server 1.9 / X.Org 7.6) will be picked up by the release of Ubuntu 10.10 later in the year " Form Phornix (http://www.phoronix.com/scan.php?page=article&item=xorg_server_18&nu...)
Also this Post is backing up that Lucid will ship the older X (http://www.phoronix.com/scan.php?page=news_item&px=ODA5OA)
But as Ubuntu changed their homepage layout and they go more for normal user without tech specs anymore i could not verify what features lucid has.