[Bug 1536081] Re: libsdl2:i386 isn't installable on 64-bit systems with newer graphics stack

[LocutusOfBorg]

trusty machine:
# dpkg --add-architecture i386
# apt-get update

add my ppa:
https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/locutusofborg-ppa/

$ apt-get install libsdl2-2.0-0 libsdl2-2.0-0:i386 libegl1-mesa-lts-xenial:i386 libegl1-mesa-lts-xenial
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libsdl2-2.0-0 is already the newest version.
libsdl2-2.0-0:i386 is already the newest version.
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:
 libegl1-mesa : Conflicts: libegl1-x11
                Conflicts: libegl1-x11:i386
 libegl1-mesa:i386 : Conflicts: libegl1-x11
                     Conflicts: libegl1-x11:i386
 libegl1-mesa-lts-xenial : Conflicts: libegl1-mesa
                           Conflicts: libegl1-mesa:i386
                           Conflicts: libegl1-x11
                           Conflicts: libegl1-x11:i386
 libegl1-mesa-lts-xenial:i386 : Conflicts: libegl1-mesa
                                Conflicts: libegl1-mesa:i386
                                Conflicts: libegl1-x11
                                Conflicts: libegl1-x11:i386
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.


if we can solve this, I think I can sponsor it

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https://bugs.launchpad.net/bugs/1536081

Title:
  libsdl2:i386 isn't installable on 64-bit systems with newer graphics
  stack

Status in libsdl2 package in Ubuntu:
  Fix Released
Status in libsdl2 source package in Trusty:
  Incomplete

Bug description:
  Basically, I need libsdl2:i386 for witcher2, but I can't because when
  I try to install it this happens

  Reading package lists... Done
  Building dependency tree       
  Reading state information... 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:
   libsdl2-2.0-0:i386 : Depends: libwayland-egl1-mesa:i386 (>= 10.0.2) or
                                 libwayland-egl1:i386
  E: Unable to correct problems, you have held broken packages

  I am on nvidia drivers, so obviously I cant use mesa.

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