Mir cursor is missing/invisible until the client sets it multiple times

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This is possibly going to be a duplicate of bug 1216515. We should perhaps look into that first.

Status changed to 'Confirmed' because the bug affects multiple users.

Confirmed in Xmir. I've even gone to the trouble of printing the cursor in ASCII as it is sent to Mir, but Mir (demo servers) displays no cursor.

Perhaps this is related to https://bugs.launchpad.net/mir/+bug/1496849 "Mouse cursor disappears upon entering the surface area of a nested client"?

It may be related but this one and bug 1418071 show the cursor goes missing even without using nesting.

Although a nested server is a client and will probably suffer from the same bug, I don't think the problem is specific to nesting.

Found a workaround that solves the issue in Xmir: Just ask Mir to set the cursor three times. Then it will finally appear on screen.

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 0.17.0

This bug was fixed in the package mir - 0.17.0+15.10.20151008.2-0ubuntu1

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mir (0.17.0+15.10.20151008.2-0ubuntu1) wily; urgency=medium

  [ Alexandros Frantzis ]
  * New upstream release 0.17.0 (https://launchpad.net/mir/+milestone/0.17.0)
    - ABI summary: Only servers and graphics drivers need rebuilding;
      . Mirclient ABI unchanged at 9
      . Mirserver ABI bumped to 35
      . Mircommon ABI unchanged at 5
      . Mirplatform ABI bumped to 11
      . Mirprotobuf ABI bumped to 3
      . Mirplatformgraphics ABI bumped to 6
      . Mirclientplatform ABI unchanged at 3
    - Enhancements:
      . Introduce libmircookie, a simple mechanism for a group of cooperating
        processes to hand out and verify difficult-to-forge timestamps to
        untrusted 3rd parties.
      . More refactorings to support renderers other than GL.
      . Add MirBlob to the client API - a tool for serializing and
        deserializing data.
      . Introduce a libinput based input platform, not yet used by default.
      . Provide a mechanism for the shell to send events on surface
        construction.
      . Provide mir::shell::DisplayConfigurationController allowing shells
        to correctly change the display configuration, notifying clients
        as appropriate.
      . New DSO versioning guide.
      . Send events pertaining to the output a surface is currently on (dpi,
        form factor, scale) to clients.
    - Bug fixes:
      . [enhancement] XMir specific documentation should live in its own
        subsection (LP: #1200114)
      . Nested servers need cursor support (LP: #1289072)
      . Mir cursor is missing/invisible until the client sets it multiple
        times (LP: #1308133)
      . [regression] Fullscreen software surfaces (like Xmir -sw) can crash
        the Mir server (LP: #1493721)
      . [usc] Mir gives up and shuts down due to input with multimonitor qtmir
        (std::exception::what: Failure sending input event) (LP: #1496069)
      . Mouse cursor disappears upon entering the surface area of a nested
        client (LP: #1496849)
      . [android] input is not dispatched when attaching an external monitor
        (LP: #1498045)
      . [android] input coordinates are scaled incorrectly when an external
        display is connected (LP: #1498540)
      . [android] std::exception::what: error during hwc set() when unplugging
        external monitor (LP: #1498550)
      . tests do not compile without precompiled headers (LP: #1498829)
      . [android] std::exception::what: Failed to monitor fd: Operation not
        permitted when unplugging external display in a nested configuration
        (LP: #1499042)
      . Mir suddenly no longer builds since 'mesa (11.0.0-1ubuntu1) wily':
        /usr/include/EGL/eglplatform.h:100:35: fatal error:
        android/native_window.h: No such file or directory (LP: #1499134)
      . [android] various crashes when unplugging external display on a
        nested configuration (LP: #1501927)
      . Cursor becomes visible by itself when an external monitor is connected
        (LP: #1502200)
      . mesa FTBFS due to missing Requires in mirclient (LP: #1503450)

  [ CI Trai...