I think a virtual package ("Provides") might be the right answer here.
That is mir-platform-graphics-android8 (and mesa etc) would then
"Provide" a virtual "mir-server-graphics-8". And libmirserverN would
depend on virtual package "mir-server-graphics-8" that is only supplied
by installing one or more driver packages.[https://www.debian.org/doc/debian-policy/ch-relationships.html] -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1528304 Title: Mir graphics drivers don't automatically upgrade when libmir* is manually upgraded, resulting in broken system Status in Mir: Triaged Status in mir package in Ubuntu: Triaged Bug description: While investigating bug #1528279 I've noticed there's some missing dependency somewhere, I'm able to get a broken device by upgrading unity-system-compositor (which pulls in libmir*). Only after upgrading mir-graphics-drivers-android did my system come back to normal. Excerpt from apt history.log: Start-Date: 2015-12-21 17:59:29 Commandline: apt install unity-system-compositor Install: libmirserver36:armhf (0.18.0+15.04.20151216.1-0ubuntu1, automatic) Upgrade: libmircookie1:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1), libmirplatform11:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1), libmirclient9:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1), unity-system-compositor:armhf (0.2.0+15.04.20151008.1-0ubuntu1, 0.2.0+15.04.20151216.1-0ubuntu1), libmircommon5:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1), libmirprotobuf3:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1) End-Date: 2015-12-21 17:59:34 → Broken Start-Date: 2015-12-21 18:28:00 Commandline: apt install mir-graphics-drivers-android Install: libinput10:armhf (1.1.0-1ubuntu2~vivid1, automatic), mir-platform-input-evdev4:armhf (0.18.0+15.04.20151216.1-0ubuntu1, automatic), mir-platform-graphics-android7:armhf (0.18.0+15.04.20151216.1-0ubuntu1, automatic) Upgrade: mir-graphics-drivers-android:armhf (0.17.1+15.04.20151105.1-0ubuntu1, 0.18.0+15.04.20151216.1-0ubuntu1) End-Date: 2015-12-21 18:28:02 → Fixed ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: mir-graphics-drivers-android 0.18.0+15.04.20151216.1-0ubuntu1 [origin: LP-PPA-ci-train-ppa-service-stable-phone-overlay] Uname: Linux 3.4.67 armv7l ApportVersion: 2.17.2-0ubuntu1.3touch1 Architecture: armhf Date: Mon Dec 21 18:30:50 2015 InstallationDate: Installed on 2015-12-18 (3 days ago) InstallationMedia: Ubuntu 15.04 - armhf (20151218-161516) SourcePackage: mir UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1528304/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
