x11-libs/libdrm slot conflict (nouveau driver)

[jpc22]

I am trying to install xf86-video-nouveau-1.0.4 on the latest stable hardened-sources (3.5.4-r1), but i get this output.

# emerge =xf86-video-nouveau-1.0.4
Calculating dependencies... done!
[ebuild U ~] x11-libs/libdrm-2.4.40 [2.4.33] VIDEO_CARDS="(-exynos)"
[ebuild N ~] x11-drivers/xf86-video-nouveau-1.0.4

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

x11-libs/libdrm:0

(x11-libs/libdrm-2.4.40::gentoo, ebuild scheduled for merge) pulled in by
>=x11-libs/libdrm-2.4.34[video_cards_nouveau] required by (x11-drivers/xf86-video-nouveau-1.0.4::gentoo, ebuild scheduled for merge)

(x11-libs/libdrm-2.4.33::gentoo, installed) pulled in by
<x11-libs/libdrm-2.4.34 required by (media-libs/mesa-8.0.4-r1::gentoo, installed)


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. You may want to try a larger value of
the --backtrack option, such as --backtrack=30, in order to see if
that will solve this conflict automatically.

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

#





Can anyone give me pointers on how to use package.mask to solve this. (i tried --backtrack=30, but it did not work.)

[eccerr0r]

It looks like nouveau 1.0.4 wants libdrm 2.4.40 and mesa does not.
Try unmasking a new version of mesa (mesa 9?) and emerging it.
Or perhaps a older version of nouveau would work too...
_________________
Core-i7-2700K@4.1GHz/8GB RAM/180GB SSD/Intel HD3000 graphics
What the heck am I advocating?

[chithanh]

Indeed. You are trying to mix stable mesa with unstable libdrm, which can cause these problems. You will have to install at least unstable media-libs/mesa, media-libs/glu and virtual/glu.

Alternatively, build mesa with nouveau disabled.

[jpc22]

thanks guys emerging unstable packages did the trick.