calculate begar # emerge =x11-drivers/xf86-video-intel-2.9.1 Calculating dependencies... done! [ebuild UD ] x11-libs/libdrm-2.4.20-r1 [2.4.27] [ebuild UD ] x11-drivers/xf86-video-intel-2.9.1 [2.17.0-r3] USE="-debug%" !!! 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-2.4.20-r1::gentoo, ebuild scheduled for merge) pulled in by =x11-libs/libdrm-2.4.24[video_cards_nouveau] required by (x11-drivers/xf86-video-nouveau-0.0.16_pre20111109::gentoo, installed) (and 4 more with the same problems) 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. !!! The following installed packages are masked: - net-wireless/rtl8192se-firmware-2.6.0019.1207.2010::gentoo (masked by: package.mask) /usr/portage/profiles/package.mask: # Pacho Ramos (06 Mar 2012) # It spams dmesg, use kernel >= 3.0 driver instead. # See bug #367483, removal in a month. - sys-fs/ntfsprogs-2.0.0-r1::gentoo (masked by: package.mask) /usr/portage/profiles/package.mask: # Samuli Suominen (11 Mar 2012) # Replaced by USE="ntfsprogs" in sys-fs/ntfs3g # Removal in 30 days wrt bug 384865 For more information, see the MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook