** Description changed: - As a result of the LTS enablement work in 12.04.2, we now have a - situation where for the first time, a library dependency of a - substantial number of packages in main is satisfied by two different - real packages (libgl1-mesa-glx-lts-quantal Provides: libgl1-mesa-glx), - and there isn't one right "default" answer to the question of which - package should be installed (users who installed 12.04 have one option; - users who installed 12.04.2 have a different one). + [Test Case] + * Install precise 12.04.2 from the amd64 LTS cd + * Attempt to install steam, or wine1.4 + * Good behavior: libgl1-mesa-glx-lts-quantal and libgl1-mesa-dri-lts-quantal should be installed + * Broken behavior: Fails to find a correct resolution because it tries to pull in libgl1-mesa-glx:i386, or even worse it resolves it by uninstalling all the xserver-xorg-lts-quantal packages. + + [Regression Potential] + * I don't expect new bugs to pop up, since this is really a multiarch issue that only pops up because of the enablement stack. The conflict resolution is adjusted to prefer installing packages that we already have for other architectures when Multiarch: same is specified. + + [Original bug report] + As a result of the LTS enablement work in 12.04.2, we now have a situation where for the first time, a library dependency of a substantial number of packages in main is satisfied by two different real packages (libgl1-mesa-glx-lts-quantal Provides: libgl1-mesa-glx), and there isn't one right "default" answer to the question of which package should be installed (users who installed 12.04 have one option; users who installed 12.04.2 have a different one). This interacts quite badly with apt's resolver when cross-installing a multiarch-capable package that also has a dependency on one of these libraries. For example, the steam:i386 package has the following dependencies: - Depends: libc6, libgl1-mesa-dri, libgl1-mesa-glx, xterm | gnome- + Depends: libc6, libgl1-mesa-dri, libgl1-mesa-glx, xterm | gnome- terminal, zenity Since libgl1-mesa-dri and libgl1-mesa-glx are both real packages, apt tries to pull these in by name. However, the libgl1-mesa-glx-lts- quantal:amd64 and libgl1-mesa-dri-lts-quantal:amd64 packages already installed have a Conflicts/Provides on libgl1-mesa-glx and libgl1-mesa- dri respectively, and the conflicts relationship crosses architectures. It's reported that when installing via software-center, this conflict may even result in removal of the X server. I can't reproduce this myself (since steam64 has now been withdrawn from the software center until the problem can be addressed), but apt is certainly not able to find a solution to this problem on its own: sudo apt-get -o Debug::pkgProblemResolver=1 install steam Reading package lists... Done - Building dependency tree + Building dependency tree Reading state information... Done Starting Starting 2 Investigating (0) libgl1-mesa-dri-lts-quantal [ amd64 ] < 9.0-0ubuntu1~precise4 > ( libs ) Broken libgl1-mesa-dri-lts-quantal:amd64 Conflicts on libgl1-mesa-dri [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:i386 2 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 - Added libgl1-mesa-dri:i386 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring - Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:i386 + Considering libgl1-mesa-dri:i386 2 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 + Added libgl1-mesa-dri:i386 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring + Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:i386 Investigating (0) libgnome-desktop-3-2 [ amd64 ] < 3.4.2-0ubuntu0.1 > ( libs ) Broken libgnome-desktop-3-2:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to libgnome-desktop-3-2:amd64 30 - Added libgl1-mesa-glx:amd64 to the remove list + Considering libgl1-mesa-glx:amd64 14 as a solution to libgnome-desktop-3-2:amd64 30 + Added libgl1-mesa-glx:amd64 to the remove list Broken libgnome-desktop-3-2:amd64 Depends on libgl1 [ amd64 ] < none > ( none ) - Considering libgl1-mesa-swx11:amd64 0 as a solution to libgnome-desktop-3-2:amd64 30 - Added libgl1-mesa-swx11:amd64 to the remove list - Fixing libgnome-desktop-3-2:amd64 via keep of libgl1-mesa-glx:amd64 - Fixing libgnome-desktop-3-2:amd64 via keep of libgl1-mesa-swx11:amd64 + Considering libgl1-mesa-swx11:amd64 0 as a solution to libgnome-desktop-3-2:amd64 30 + Added libgl1-mesa-swx11:amd64 to the remove list + Fixing libgnome-desktop-3-2:amd64 via keep of libgl1-mesa-glx:amd64 + Fixing libgnome-desktop-3-2:amd64 via keep of libgl1-mesa-swx11:amd64 Investigating (0) gnome-session-bin [ amd64 ] < 3.2.1-0ubuntu8 > ( gnome ) Broken gnome-session-bin:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to gnome-session-bin:amd64 17 - Added libgl1-mesa-glx:amd64 to the remove list + Considering libgl1-mesa-glx:amd64 14 as a solution to gnome-session-bin:amd64 17 + Added libgl1-mesa-glx:amd64 to the remove list Broken gnome-session-bin:amd64 Depends on libgl1 [ amd64 ] < none > ( none ) - Considering libgl1-mesa-swx11:amd64 0 as a solution to gnome-session-bin:amd64 17 - Added libgl1-mesa-swx11:amd64 to the remove list - Fixing gnome-session-bin:amd64 via keep of libgl1-mesa-glx:amd64 - Fixing gnome-session-bin:amd64 via keep of libgl1-mesa-swx11:amd64 + Considering libgl1-mesa-swx11:amd64 0 as a solution to gnome-session-bin:amd64 17 + Added libgl1-mesa-swx11:amd64 to the remove list + Fixing gnome-session-bin:amd64 via keep of libgl1-mesa-glx:amd64 + Fixing gnome-session-bin:amd64 via keep of libgl1-mesa-swx11:amd64 Investigating (0) x11-utils [ amd64 ] < 7.6+4ubuntu0.1 > ( x11 ) Broken x11-utils:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to x11-utils:amd64 16 - Added libgl1-mesa-glx:amd64 to the remove list + Considering libgl1-mesa-glx:amd64 14 as a solution to x11-utils:amd64 16 + Added libgl1-mesa-glx:amd64 to the remove list Broken x11-utils:amd64 Depends on libgl1 [ amd64 ] < none > ( none ) - Considering libgl1-mesa-swx11:amd64 0 as a solution to x11-utils:amd64 16 - Added libgl1-mesa-swx11:amd64 to the remove list - Fixing x11-utils:amd64 via keep of libgl1-mesa-glx:amd64 - Fixing x11-utils:amd64 via keep of libgl1-mesa-swx11:amd64 + Considering libgl1-mesa-swx11:amd64 0 as a solution to x11-utils:amd64 16 + Added libgl1-mesa-swx11:amd64 to the remove list + Fixing x11-utils:amd64 via keep of libgl1-mesa-glx:amd64 + Fixing x11-utils:amd64 via keep of libgl1-mesa-swx11:amd64 Investigating (0) libnux-2.0-0 [ amd64 ] < 2.14.1-0ubuntu1 > ( libs ) Broken libnux-2.0-0:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 - Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 + Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 + Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 Investigating (0) libglapi-mesa-lts-quantal [ amd64 ] < 9.0-0ubuntu1~precise4 > ( libs ) Broken libglapi-mesa-lts-quantal:amd64 Conflicts on libglapi-mesa [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libglapi-mesa:amd64 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 - Added libglapi-mesa:amd64 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring + Considering libglapi-mesa:amd64 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 + Added libglapi-mesa:amd64 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring Broken libglapi-mesa-lts-quantal:amd64 Conflicts on libglapi-mesa [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libglapi-mesa:i386 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 - Added libglapi-mesa:i386 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring - Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:amd64 - Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:i386 + Considering libglapi-mesa:i386 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 + Added libglapi-mesa:i386 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring + Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:amd64 + Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:i386 Investigating (0) libqt4-opengl [ amd64 ] < 4:4.8.1-0ubuntu4.3 -> 4:4.8.1-0ubuntu4.4 > ( libs ) Broken libqt4-opengl:amd64 Depends on libqtcore4 [ amd64 ] < 4:4.8.1-0ubuntu4.3 -> 4:4.8.1-0ubuntu4.4 > ( libs ) (= 4:4.8.1-0ubuntu4.4) - Considering libqtcore4:amd64 93 as a solution to libqt4-opengl:amd64 4 - Holding Back libqt4-opengl:amd64 rather than change libqtcore4:amd64 + Considering libqtcore4:amd64 93 as a solution to libqt4-opengl:amd64 4 + Holding Back libqt4-opengl:amd64 rather than change libqtcore4:amd64 Investigating (0) libgl1-mesa-glx [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) Broken libgl1-mesa-glx:i386 Depends on libglapi-mesa [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) (= 8.0.4-0ubuntu0.3) - Considering libglapi-mesa:i386 0 as a solution to libgl1-mesa-glx:i386 1 - Holding Back libgl1-mesa-glx:i386 rather than change libglapi-mesa:i386 + Considering libglapi-mesa:i386 0 as a solution to libgl1-mesa-glx:i386 1 + Holding Back libgl1-mesa-glx:i386 rather than change libglapi-mesa:i386 Investigating (0) xserver-xorg-lts-quantal [ amd64 ] < 1:7.7+1ubuntu4~precise1 > ( x11 ) Broken xserver-xorg-lts-quantal:amd64 Conflicts on libgl1-mesa-dri [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) (>= 0~) - Considering libgl1-mesa-dri:amd64 1 as a solution to xserver-xorg-lts-quantal:amd64 0 - Removing xserver-xorg-lts-quantal:amd64 rather than change libgl1-mesa-dri:amd64 + Considering libgl1-mesa-dri:amd64 1 as a solution to xserver-xorg-lts-quantal:amd64 0 + Removing xserver-xorg-lts-quantal:amd64 rather than change libgl1-mesa-dri:amd64 Investigating (1) steam [ i386 ] < none -> 1.0.0.27ubuntu1 > ( games ) Broken steam:i386 Depends on libgl1-mesa-dri [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Re-Instated libgl1-mesa-dri:i386 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Re-Instated libgl1-mesa-dri:i386 Broken steam:i386 Depends on libgl1-mesa-glx [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Re-Instated libglapi-mesa:i386 - Re-Instated libgl1-mesa-glx:i386 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Re-Instated libglapi-mesa:i386 + Re-Instated libgl1-mesa-glx:i386 Investigating (1) libgl1-mesa-dri-lts-quantal [ amd64 ] < 9.0-0ubuntu1~precise4 > ( libs ) Broken libgl1-mesa-dri-lts-quantal:amd64 Conflicts on libgl1-mesa-dri [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:amd64 1 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 - Added libgl1-mesa-dri:amd64 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring + Considering libgl1-mesa-dri:amd64 1 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 + Added libgl1-mesa-dri:amd64 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring Broken libgl1-mesa-dri-lts-quantal:amd64 Conflicts on libgl1-mesa-dri [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:i386 2 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 - Added libgl1-mesa-dri:i386 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring - Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:amd64 - Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:i386 + Considering libgl1-mesa-dri:i386 2 as a solution to libgl1-mesa-dri-lts-quantal:amd64 33 + Added libgl1-mesa-dri:i386 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libgl1-mesa-dri but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libgl1-mesa-dri but that is not InstVer, ignoring + Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:amd64 + Fixing libgl1-mesa-dri-lts-quantal:amd64 via keep of libgl1-mesa-dri:i386 Investigating (1) libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) Broken libgl1-mesa-glx:amd64 Depends on libglapi-mesa [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) (= 8.0.4-0ubuntu0.3) - Considering libglapi-mesa:amd64 0 as a solution to libgl1-mesa-glx:amd64 14 - Holding Back libgl1-mesa-glx:amd64 rather than change libglapi-mesa:amd64 + Considering libglapi-mesa:amd64 0 as a solution to libgl1-mesa-glx:amd64 14 + Holding Back libgl1-mesa-glx:amd64 rather than change libglapi-mesa:amd64 Investigating (1) libnux-2.0-0 [ amd64 ] < 2.14.1-0ubuntu1 > ( libs ) Broken libnux-2.0-0:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 - Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 + Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 + Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 Investigating (1) libglapi-mesa-lts-quantal [ amd64 ] < 9.0-0ubuntu1~precise4 > ( libs ) Broken libglapi-mesa-lts-quantal:amd64 Conflicts on libglapi-mesa [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libglapi-mesa:amd64 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 - Added libglapi-mesa:amd64 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring + Considering libglapi-mesa:amd64 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 + Added libglapi-mesa:amd64 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring Broken libglapi-mesa-lts-quantal:amd64 Conflicts on libglapi-mesa [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libglapi-mesa:i386 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 - Added libglapi-mesa:i386 to the remove list - Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring - Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring - Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:amd64 - Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:i386 - Try to Re-Instate (1) libqt4-opengl:amd64 + Considering libglapi-mesa:i386 0 as a solution to libglapi-mesa-lts-quantal:amd64 5 + Added libglapi-mesa:i386 to the remove list + Conflicts//Breaks against version 8.0.4-0ubuntu0.2 for libglapi-mesa but that is not InstVer, ignoring + Conflicts//Breaks against version 8.0.2-0ubuntu3 for libglapi-mesa but that is not InstVer, ignoring + Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:amd64 + Fixing libglapi-mesa-lts-quantal:amd64 via keep of libglapi-mesa:i386 + Try to Re-Instate (1) libqt4-opengl:amd64 Investigating (1) libgl1-mesa-glx [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) Broken libgl1-mesa-glx:i386 Depends on libglapi-mesa [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) (= 8.0.4-0ubuntu0.3) - Considering libglapi-mesa:i386 0 as a solution to libgl1-mesa-glx:i386 1 - Holding Back libgl1-mesa-glx:i386 rather than change libglapi-mesa:i386 + Considering libglapi-mesa:i386 0 as a solution to libgl1-mesa-glx:i386 1 + Holding Back libgl1-mesa-glx:i386 rather than change libglapi-mesa:i386 Investigating (1) xorg [ amd64 ] < 1:7.6+12ubuntu2 > ( x11 ) Broken xorg:amd64 Depends on xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) (>= 1:7.6+12ubuntu2) - Considering xserver-xorg:amd64 3 as a solution to xorg:amd64 1 - Try Installing xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) before changing xorg:amd64 + Considering xserver-xorg:amd64 3 as a solution to xorg:amd64 1 + Try Installing xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) before changing xorg:amd64 Broken xorg:amd64 Depends on xserver-xorg-renamed [ amd64 ] < none > ( none ) - Considering xserver-xorg-lts-quantal:amd64 0 as a solution to xorg:amd64 1 - Added xserver-xorg-lts-quantal:amd64 to the remove list - Fixing xorg:amd64 via keep of xserver-xorg-lts-quantal:amd64 + Considering xserver-xorg-lts-quantal:amd64 0 as a solution to xorg:amd64 1 + Added xserver-xorg-lts-quantal:amd64 to the remove list + Fixing xorg:amd64 via keep of xserver-xorg-lts-quantal:amd64 Investigating (1) xserver-xorg-lts-quantal [ amd64 ] < 1:7.7+1ubuntu4~precise1 > ( x11 ) Broken xserver-xorg-lts-quantal:amd64 Depends on xserver-xorg-core-lts-quantal [ amd64 ] < 2:1.13.0-0ubuntu6.1~precise2 > ( x11 ) (>= 2:1.11) - Considering xserver-xorg-core-lts-quantal:amd64 54 as a solution to xserver-xorg-lts-quantal:amd64 0 - Removing xserver-xorg-lts-quantal:amd64 rather than change xserver-xorg-core-lts-quantal:amd64 + Considering xserver-xorg-core-lts-quantal:amd64 54 as a solution to xserver-xorg-lts-quantal:amd64 0 + Removing xserver-xorg-lts-quantal:amd64 rather than change xserver-xorg-core-lts-quantal:amd64 Investigating (2) steam [ i386 ] < none -> 1.0.0.27ubuntu1 > ( games ) Broken steam:i386 Depends on libgl1-mesa-dri [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri-lts-quantal:i386 0 as a solution to steam:i386 9999 - Re-Instated libdrm-nouveau2:i386 - Re-Instated libglapi-mesa-lts-quantal:i386 - Re-Instated libllvm3.1:i386 - Re-Instated libgl1-mesa-dri-lts-quantal:i386 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri-lts-quantal:i386 0 as a solution to steam:i386 9999 + Re-Instated libdrm-nouveau2:i386 + Re-Instated libglapi-mesa-lts-quantal:i386 + Re-Instated libllvm3.1:i386 + Re-Instated libgl1-mesa-dri-lts-quantal:i386 Broken steam:i386 Depends on libgl1-mesa-glx [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx-lts-quantal:i386 0 as a solution to steam:i386 9999 - Re-Instated libgl1-mesa-glx-lts-quantal:i386 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx-lts-quantal:i386 0 as a solution to steam:i386 9999 + Re-Instated libgl1-mesa-glx-lts-quantal:i386 Investigating (2) libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) Broken libgl1-mesa-glx:amd64 Depends on libglapi-mesa [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) (= 8.0.4-0ubuntu0.3) - Considering libglapi-mesa:amd64 0 as a solution to libgl1-mesa-glx:amd64 14 - Holding Back libgl1-mesa-glx:amd64 rather than change libglapi-mesa:amd64 + Considering libglapi-mesa:amd64 0 as a solution to libgl1-mesa-glx:amd64 14 + Holding Back libgl1-mesa-glx:amd64 rather than change libglapi-mesa:amd64 Investigating (2) libnux-2.0-0 [ amd64 ] < 2.14.1-0ubuntu1 > ( libs ) Broken libnux-2.0-0:amd64 Depends on libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 - Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 + Considering libgl1-mesa-glx:amd64 14 as a solution to libnux-2.0-0:amd64 12 + Try Installing libgl1-mesa-glx [ amd64 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) before changing libnux-2.0-0:amd64 Investigating (2) xorg [ amd64 ] < 1:7.6+12ubuntu2 > ( x11 ) Broken xorg:amd64 Depends on xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) (>= 1:7.6+12ubuntu2) - Considering xserver-xorg:amd64 3 as a solution to xorg:amd64 1 - Try Installing xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) before changing xorg:amd64 + Considering xserver-xorg:amd64 3 as a solution to xorg:amd64 1 + Try Installing xserver-xorg [ amd64 ] < none -> 1:7.6+12ubuntu2 > ( x11 ) before changing xorg:amd64 Investigating (3) steam [ i386 ] < none -> 1.0.0.27ubuntu1 > ( games ) Broken steam:i386 Depends on libgl1-mesa-dri [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 - Considering libgl1-mesa-dri-lts-quantal:i386 0 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri:i386 2 as a solution to steam:i386 9999 + Considering libgl1-mesa-dri-lts-quantal:i386 0 as a solution to steam:i386 9999 Broken steam:i386 Depends on libgl1-mesa-glx [ i386 ] < none -> 8.0.4-0ubuntu0.3 > ( libs ) - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 - Considering libgl1-mesa-glx-lts-quantal:i386 0 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx:i386 1 as a solution to steam:i386 9999 + Considering libgl1-mesa-glx-lts-quantal:i386 0 as a solution to steam:i386 9999 Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: - steam:i386 : Depends: libgl1-mesa-dri:i386 - Depends: libgl1-mesa-glx:i386 + steam:i386 : Depends: libgl1-mesa-dri:i386 + Depends: libgl1-mesa-glx:i386 E: Unable to correct problems, you have held broken packages. Getting a correct result requires the following: $ sudo apt-get install libgl1-mesa-dri-lts-quantal:i386 libglapi-mesa- lts-quantal:i386 libgl1-mesa-glx-lts-quantal:i386 steam Since we don't have enough information to say with certainty that all Conflicts from packages of a different architecture can be ignored, it seems we need apt's resolver to be smarter, and possibly give priority to implementors of virtual packages that are already installed for a different architecture when trying to satisfy dependencies.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1130419 Title: apt resolver doesn't do sensible things when satisfying a cross- dependency on a virtual package (steam, wine) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1130419/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
