sudo aptitude install xserver-xorg-video-openchrome-lts-quantal The following NEW packages will be installed: libgl1-mesa-dri-lts-quantal{ab} libglapi-mesa-lts-quantal{ab} libllvm3.1{a} xserver-common-lts-quantal{a} xserver-xorg-core-lts-quantal{ab} xserver-xorg-video-openchrome-lts-quantal{b} 0 packages upgraded, 6 newly installed, 0 to remove and 51 not upgraded. Need to get 12.0 MB of archives. After unpacking 38.5 MB will be used. The following packages have unmet dependencies: libglapi-mesa-lts-quantal : Conflicts: libglapi-mesa but 8.0.4-0ubuntu0.4 is installed. xserver-xorg : Conflicts: xorg-renamed-package which is a virtual package. xserver-xorg-video-openchrome-lts-quantal : Conflicts: xserver-xorg-video-openchrome but 1:0.2.904+svn1050-1 is installed. libgl1-mesa-dri-lts-quantal : Conflicts: libgl1-mesa-dri but 8.0.4-0ubuntu0.4 is installed. xserver-xorg-core-lts-quantal : Conflicts: xserver-xorg-core but 2:1.11.4-0ubuntu10.12 is installed. The following actions will resolve these dependencies: Remove the following packages: 1) trisquel 2) trisquel-desktop-common 3) xserver-xorg 4) xserver-xorg-core 5) xserver-xorg-input-all 6) xserver-xorg-input-evdev 7) xserver-xorg-input-mouse 8) xserver-xorg-input-synaptics 9) xserver-xorg-input-vmmouse 10) xserver-xorg-input-wacom 11) xserver-xorg-video-all 12) xserver-xorg-video-ati 13) xserver-xorg-video-cirrus 14) xserver-xorg-video-fbdev 15) xserver-xorg-video-intel 16) xserver-xorg-video-mach64 17) xserver-xorg-video-mga 18) xserver-xorg-video-neomagic 19) xserver-xorg-video-nouveau 20) xserver-xorg-video-openchrome 21) xserver-xorg-video-qxl 22) xserver-xorg-video-r128 23) xserver-xorg-video-radeon 24) xserver-xorg-video-s3 25) xserver-xorg-video-savage 26) xserver-xorg-video-siliconmotion 27) xserver-xorg-video-sis 28) xserver-xorg-video-sisusb 29) xserver-xorg-video-tdfx 30) xserver-xorg-video-trident 31) xserver-xorg-video-vesa 32) xserver-xorg-video-vmware Keep the following packages at their current version: 33) libgl1-mesa-dri-lts-quantal [Not Installed] 34) libglapi-mesa-lts-quantal [Not Installed] Leave the following dependencies unresolved: 35) gdm recommends xserver-xorg 36) xserver-xorg-core-lts-quantal recommends libgl1-mesa-dri-lts-quantal (>= 7.10.2-4) Accept this solution? [Y/n/q/?] y The following NEW packages will be installed: xserver-common-lts-quantal{a} xserver-xorg-core-lts-quantal{a} xserver-xorg-video-openchrome-lts-quantal The following packages will be REMOVED: trisquel{a} trisquel-desktop-common{a} xserver-xorg{a} xserver-xorg-core{a} xserver-xorg-input-all{a} xserver-xorg-input-evdev{a} xserver-xorg-input-mouse{a} xserver-xorg-input-synaptics{a} xserver-xorg-input-vmmouse{a} xserver-xorg-input-wacom{a} xserver-xorg-video-all{a} xserver-xorg-video-ati{a} xserver-xorg-video-cirrus{a} xserver-xorg-video-fbdev{a} xserver-xorg-video-intel{a} xserver-xorg-video-mach64{a} xserver-xorg-video-mga{a} xserver-xorg-video-neomagic{a} xserver-xorg-video-nouveau{a} xserver-xorg-video-openchrome{a} xserver-xorg-video-qxl{a} xserver-xorg-video-r128{a} xserver-xorg-video-radeon{a} xserver-xorg-video-s3{a} xserver-xorg-video-savage{a} xserver-xorg-video-siliconmotion{a} xserver-xorg-video-sis{a} xserver-xorg-video-sisusb{a} xserver-xorg-video-tdfx{a} xserver-xorg-video-trident{a} xserver-xorg-video-vesa{a} xserver-xorg-video-vmware{a} The following packages are RECOMMENDED but will NOT be installed: libgl1-mesa-dri-lts-quantal 0 packages upgraded, 3 newly installed, 32 to remove and 51 not upgraded. Need to get 1,789 kB of archives. After unpacking 6,222 kB will be freed. Do you want to continue? [Y/n/?] Get: 1 http://fr.archive.trisquel.info/trisquel/ toutatis-updates/main xserver-common-lts-quantal all 2:1.13.0-0ubuntu6.1~precise2 [22.1 kB] Get: 2 http://fr.archive.trisquel.info/trisquel/ toutatis-updates/main xserver-xorg-core-lts-quantal amd64 2:1.13.0-0ubuntu6.1~precise2 [1,590 kB] Get: 3 http://fr.archive.trisquel.info/trisquel/ toutatis-updates/main xserver-xorg-video-openchrome-lts-quantal amd64 1:0.3.1-0ubuntu1~precise2 [176 kB] Fetched 1,789 kB in 4s (423 kB/s) (Reading database ... 139928 files and directories currently installed.) Removing trisquel ... Removing trisquel-desktop-common ... Removing xserver-xorg ... Removing xserver-xorg-video-all ... Removing xserver-xorg-video-vmware ... Removing xserver-xorg-video-nouveau ... Removing xserver-xorg-video-intel ... Removing xserver-xorg-input-all ... Removing xserver-xorg-input-wacom ... Removing xserver-xorg-input-vmmouse ... Removing xserver-xorg-input-synaptics ... Removing xserver-xorg-input-evdev ... Removing xserver-xorg-video-qxl ... Removing xserver-xorg-video-vesa ... Removing xserver-xorg-video-trident ... Removing xserver-xorg-video-tdfx ... Removing xserver-xorg-video-sisusb ... Removing xserver-xorg-video-sis ... Removing xserver-xorg-video-siliconmotion ... Removing xserver-xorg-video-savage ... Removing xserver-xorg-video-s3 ... Removing xserver-xorg-video-ati ... Removing xserver-xorg-video-radeon ... Removing xserver-xorg-video-r128 ... Removing xserver-xorg-video-openchrome ... Removing xserver-xorg-video-neomagic ... Removing xserver-xorg-video-mga ... Removing xserver-xorg-video-mach64 ... Removing xserver-xorg-video-fbdev ... Removing xserver-xorg-video-cirrus ... Removing xserver-xorg-input-mouse ... Removing xserver-xorg-core ... Processing triggers for man-db ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place Selecting previously unselected package xserver-common-lts-quantal. (Reading database ... 139587 files and directories currently installed.) Unpacking xserver-common-lts-quantal (from .../xserver-common-lts-quantal_2%3a1.13.0-0ubuntu6.1~precise2_all.deb) ... Adding 'diversion of /usr/lib/xorg/protocol.txt to /usr/lib/xorg/protocol-precise.txt by xserver-common-lts-quantal' Selecting previously unselected package xserver-xorg-core-lts-quantal. Unpacking xserver-xorg-core-lts-quantal (from .../xserver-xorg-core-lts-quantal_2%3a1.13.0-0ubuntu6.1~precise2_amd64.deb) ... Selecting previously unselected package xserver-xorg-video-openchrome-lts-quantal. Unpacking xserver-xorg-video-openchrome-lts-quantal (from .../xserver-xorg-video-openchrome-lts-quantal_1%3a0.3.1-0ubuntu1~precise2_amd64.deb) ... Processing triggers for man-db ... Setting up xserver-common-lts-quantal (2:1.13.0-0ubuntu6.1~precise2) ... Setting up xserver-xorg-core-lts-quantal (2:1.13.0-0ubuntu6.1~precise2) ... Setting up xserver-xorg-video-openchrome-lts-quantal (1:0.3.1-0ubuntu1~precise2) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place