помогите разобраться с конфликтами

emerge world -NuDtpv
x11-drivers/xf86-input-keyboard:0

  ('ebuild', '/', 'x11-drivers/xf86-input-keyboard-1.1.1', 'merge') pulled in by
    ('ebuild', '/', 'x11-base/xorg-server-1.3.0.0-r5', 'merge')

  ('installed', '/', 'x11-drivers/xf86-input-keyboard-1.3.0', 'nomerge') pulled in by
    ('installed', '/', 'x11-base/xorg-server-1.4.0.90-r4', 'nomerge')

x11-base/xorg-server:0

  ('ebuild', '/', 'x11-base/xorg-server-1.3.0.0-r5', 'merge') pulled in by
    ('installed', '/', 'net-misc/vnc-4.1.2-r4', 'nomerge')

  ('installed', '/', 'x11-base/xorg-server-1.4.0.90-r4', 'nomerge') pulled in by
    ('installed', '/', 'x11-wm/compiz-0.7.4', 'nomerge')
    ('installed', '/', 'x11-base/xorg-x11-7.2', 'nomerge')
    ('installed', '/', 'x11-drivers/xf86-input-keyboard-1.3.0', 'nomerge')
    (and 8 more)

x11-libs/libXrender:0

  ('ebuild', '/', 'x11-libs/libXrender-0.9.2', 'merge') pulled in by
    ('ebuild', '/', 'x11-base/xorg-server-1.3.0.0-r5', 'merge')

  ('installed', '/', 'x11-libs/libXrender-0.9.4', 'nomerge') pulled in by
    ('installed', '/', 'x11-misc/transset-0.1_pre20040821', 'nomerge')
    ('installed', '/', 'x11-libs/libXcursor-1.1.9', 'nomerge')
    ('installed', '/', 'x11-libs/libXft-2.1.12', 'nomerge')
    (and 15 more)

x11-proto/renderproto:0

  ('ebuild', '/', 'x11-proto/renderproto-0.9.2', 'merge') pulled in by
    ('ebuild', '/', 'x11-base/xorg-server-1.3.0.0-r5', 'merge')

  ('installed', '/', 'x11-proto/renderproto-0.9.3', 'nomerge') pulled in by
    ('installed', '/', 'x11-libs/libXrender-0.9.4', 'nomerge')
    ('ebuild', '/', 'x11-libs/libXrender-0.9.2', 'merge')


It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously. If such a conflict exists in the
dependencies of two different packages, then those packages can not be
installed simultaneously.

For more information, see MASKED PACKAGES section in the emerge man page
or refer to the Gentoo Handbook.


!!! Ebuilds for the following packages are either all
!!! masked or don't exist:
media-fonts/sharefonts media-fonts/artwiz-fonts app-admin/system-tools-backends
                                                                                                                                                           ... done!
[ebuild     UD] x11-base/xorg-server-1.3.0.0-r5 [1.4.0.90-r4] USE="dri sdl xorg -3dfx -debug -dmx -ipv6 -kdrive -minimal -nptl -xprint (-hal%*)" INPUT_DEVICES="keyboard mouse synaptics -acecad -aiptek -calcomp -citron -digitaledge -dmc -dynapro -elo2300 -elographics -evdev -fpit -hyperpen -jamstudio -joystick -magellan -microtouch -mutouch -palmax -penmount -spaceorb -summa -tek4957 -ur98 -vmmouse -void -wacom" VIDEO_CARDS="fbdev i810 v4l vesa vga -apm -ark -chips -cirrus -cyrix -dummy -epson -fglrx -glint -i128 -i740 (-impact) -imstt -mach64 -mga -neomagic (-newport) -nsc -nv -nvidia -r128 -radeon -rendition -s3 -s3virge -savage -siliconmotion -sis -sisusb (-sunbw2) (-suncg14) (-suncg3) (-suncg6) (-sunffb) (-sunleo) (-suntcx) -tdfx -tga -trident -tseng -via -vmware -voodoo (-amd%) (-vermilion%) (-xgi%)" 0 kB [1=>0]
[ebuild     UD]  x11-drivers/xf86-input-keyboard-1.1.1 [1.3.0] USE="-debug" 0 kB
[ebuild     UD]  x11-libs/libXrender-0.9.2 [0.9.4] USE="-debug" 0 kB
[ebuild     UD]  x11-proto/renderproto-0.9.2 [0.9.3] 0 kB

Total: 4 packages (4 downgrades), Size of downloads: 0 kB
Portage tree and overlays:
 [0] /nfs/portage
 [1] /nfs/portage-layman/sabayon

решив одну проблему появилсь другая...

I: как следует читать сей вывод portage?
II: как узнать что тянет в низ эти пакеты ?