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[Tholl1989 <MariaJCore@xxxxxxxxx>]

** Summary changed:

- Unsolvable LTSEnablementStack Mesa package dependency
+ Package resolver can't find *-lts-utopic package dependencies, aborts

** Description changed:

  [Description]
- On 14.04.2 aptitude/APT determinates non-LTSEnablementStack Mesa packages instead of *lts-utopic pendants as dependencies. This leads to unsolvable conflicts with the already installed *lts-utopic packages.
+ On Ubuntu 14.04.2 with updated kernel and X stack (LTS Enablement Stacks) package resolver fails to find *-lts-utopic package dependencies, aborts.
  
- 
- [Test Case]
- [a] libgles2-mesa (10.1.3-0ubuntu0.3) instead of libgles2-mesa-lts-utopic (10.3.2-0ubuntu1~trusty2)
- $ sudo aptitude install qtbase5-dev
- The following NEW packages will be installed:
-   libglapi-mesa{a} libgles2-mesa{ab} libgles2-mesa-dev{a} libglu1-mesa-dev{a} libqt5concurrent5{a} libqt5opengl5-dev{a} qt5-qmake{a} 
-   qtbase5-dev qtbase5-dev-tools{a} 
- 0 packages upgraded, 9 newly installed, 0 to remove and 0 not upgraded.
- Need to get 4,439 kB of archives. After unpacking 27.9 MB will be used.
- The following packages have unmet dependencies:
-  xserver-xorg-lts-utopic : Conflicts: libglapi-mesa (>= 0~) but 10.1.3-0ubuntu0.3 is to be installed.
-                            Conflicts: libgles2-mesa (>= 0~) but 10.1.3-0ubuntu0.3 is to be installed.
-  libgles2-mesa : Conflicts: libgles2 which is a virtual package.
-  libglapi-mesa-lts-utopic : Conflicts: libglapi-mesa but 10.1.3-0ubuntu0.3 is to be installed.
-  libgles2-mesa-lts-utopic : Conflicts: libgles2 which is a virtual package.
-                             Conflicts: libgles2-mesa but 10.1.3-0ubuntu0.3 is to be installed.
- 
- libglapi-mesa conflicts due to libgles2-mesa having a dependency on
- libglapi-mesa (= 10.1.3-0ubuntu0.3).
- 
- [b] libgl1-mesa-dev (10.1.3-0ubuntu0.3) instead of libgl1-mesa-lts-utopic (10.3.2-0ubuntu1~trusty2)
- $ sudo aptitude install freeglut3-dev
- The following NEW packages will be installed:
-   freeglut3{a} freeglut3-dev libdrm-dev{a} libgl1-mesa-dev{a} libgl1-mesa-dri{a} libgl1-mesa-glx{ab} libglapi-mesa{a} libglu1-mesa-dev{a} 
-   libice-dev{a} libllvm3.4{a} libpthread-stubs0-dev{a} libsm-dev{a} libx11-dev{a} libx11-doc{a} libx11-xcb-dev{a} libxau-dev{a} 
-   libxcb-dri2-0-dev{a} libxcb-dri3-dev{a} libxcb-glx0-dev{a} libxcb-present-dev{a} libxcb-randr0-dev{a} libxcb-render0-dev{a} 
-   libxcb-shape0-dev{a} libxcb-sync-dev{a} libxcb-xfixes0-dev{a} libxcb1-dev{a} libxdamage-dev{a} libxdmcp-dev{a} libxext-dev{a} 
-   libxfixes-dev{a} libxshmfence-dev{a} libxt-dev{a} libxxf86vm-dev{a} mesa-common-dev{a} x11proto-core-dev{a} x11proto-damage-dev{a} 
-   x11proto-dri2-dev{a} x11proto-fixes-dev{a} x11proto-gl-dev{a} x11proto-input-dev{a} x11proto-kb-dev{a} x11proto-xext-dev{a} 
-   x11proto-xf86vidmode-dev{a} xorg-sgml-doctools{a} xtrans-dev{a} 
- 0 packages upgraded, 45 newly installed, 0 to remove and 68 not upgraded.
- Need to get 16.6 MB of archives. After unpacking 88.2 MB will be used.
- The following packages have unmet dependencies:
-  libgl1-mesa-dri-lts-utopic : Conflicts: libgl1-mesa-dri but 10.1.3-0ubuntu0.3 is to be installed.
-  libgl1-mesa-glx-lts-utopic : Conflicts: libgl1 which is a virtual package.
-                               Conflicts: libgl1-mesa-glx but 10.1.3-0ubuntu0.3 is to be installed.
-  xserver-xorg-lts-utopic : Conflicts: libgl1-mesa-dri (>= 0~) but 10.1.3-0ubuntu0.3 is to be installed.
-                            Conflicts: libgl1-mesa-glx (>= 0~) but 10.1.3-0ubuntu0.3 is to be installed.
-                            Conflicts: libglapi-mesa (>= 0~) but 10.1.3-0ubuntu0.3 is to be installed.
-  libgl1-mesa-glx : Conflicts: libgl1 which is a virtual package.
-  libglapi-mesa-lts-utopic : Conflicts: libglapi-mesa but 10.1.3-0ubuntu0.3 is to be installed.
+ [Test case]
+ $ sudo apt-get -o debug::pkgproblemresolver=true install qtbase5-dev
+ (Log attached as apt.log)
  
  [Workaround]
- [a]
- $ sudo aptitude install qtbase5-dev libgles2-mesa-lts-utopic
+ Manually resolve:
+ $ sudo apt-get install qtbase5-dev libgles2-mesa-dev-lts-utopic
  
- [b]
- $ sudo aptitude install -s freeglut3-dev libgl1-mesa-dev-lts-utopic
+ Possible catch all solution:
+ $ sudo apt-get install .*-dev-lts-utopic
+ 
+ [Speculation]
+ Control file of libgles2-mesa-dev-lts-utopic do look right:
+ http://debian-handbook.info/browse/stable/sect.package-meta-information.html
+ 
+ Guess APT just get overwhelmend by the possibilies and aborts before
+ finding the right one.
+ 
+ Is there some SAT-solver, which could conform? Aptitude's resolver fails, too.
+ Could control files be tweaked to make resolving easier?
+ 
+ [Possible affected packages]
+ Possible all packages which have dependencies on *-mesa-dev for which there's an updated version in the LTS Enablement Stacks.
+ Roughly:
+ $ apt-cache rdepends .*-mesa-dev

** Attachment added: "apt.log"
   https://bugs.launchpad.net/ubuntu/+source/mesa-lts-utopic/+bug/1429529/+attachment/4338325/+files/apt.log

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https://bugs.launchpad.net/bugs/1429529

Title:
  Package resolver can't find *-lts-utopic package dependencies, aborts

Status in mesa package in Ubuntu:
  Confirmed
Status in mesa-lts-utopic package in Ubuntu:
  Confirmed

Bug description:
  [Description]
  On Ubuntu 14.04.2 with updated kernel and X stack (LTS Enablement Stacks) package resolver fails to find *-lts-utopic package dependencies, aborts.

  [Test case]
  $ sudo apt-get -o debug::pkgproblemresolver=true install qtbase5-dev
  (Log attached as apt.log)

  [Workaround]
  Manually resolve:
  $ sudo apt-get install qtbase5-dev libgles2-mesa-dev-lts-utopic

  Possible catch all solution:
  $ sudo apt-get install .*-dev-lts-utopic

  [Speculation]
  Control file of libgles2-mesa-dev-lts-utopic 10.3.2-0ubuntu1~trusty2 does look right imho:
  http://debian-handbook.info/browse/stable/sect.package-meta-information.html

  Guess APT just get overwhelmed by the possibilies and aborts before
  finding the right one.

  Is there some SAT-solver, which could conform? Aptitude's resolver fails, too.
  Could control files be tweaked to make resolving easier?

  [Possible affected packages]
  Possible all packages which have dependencies on *-mesa-dev for which there's an updated version in the LTS Enablement Stacks.
  Roughly:
  $ apt-cache rdepends .*-mesa-dev

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