[blocks B ] x11-drivers/ati-drivers (is blocking x11-base/xorg-server-1.4-r2)
[blocks B ] x11-misc/xkbdata (is blocking x11-misc/xkeyboard-config-1.1)
[blocks B ] x11-drivers/xf86-video-via (is blocking x11-drivers/xf86-video-openchrome-9 999)
[blocks B ] x11-misc/xkeyboard-config (is blocking x11-misc/xkbdata-1.0.1)
Total: 39 packages (36 upgrades, 3 new, 4 blocks), Size of downloads: 26,186 kB
Portage tree and overlays:
[0] /usr/portage
[1] /usr/portage/local/layman/sabayon
!!! Error: The above package list contains packages which cannot be installed
!!! at the same time on the same system.
For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):
http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked