Mir

Double-buffered surfaces may lag or freeze if event driven and not constantly redrawing

Bug #1395581 reported by Daniel van Vugt on 2014-11-24
14
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Fix Released
High
Daniel van Vugt
mir (Ubuntu)
Undecided
Unassigned
qtmir (Ubuntu)
Undecided
Unassigned

Bug Description

Double-buffered surfaces may lag or freeze if event driven and not constantly redrawing. This is buffers_ready_for_compositor returning zero when it should be non-zero.

Related branches

Daniel van Vugt (vanvugt) wrote :

The fix for this bug, while trivial, is now blocked by Android bug 1391261.

Changed in mir:
milestone: 0.10.0 → 0.11.0
Changed in mir:
milestone: 0.11.0 → 0.12.0
PS Jenkins bot (ps-jenkins) wrote :

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 0.12.0

Changed in mir:
status: In Progress → Fix Committed
Daniel van Vugt (vanvugt) wrote :

Merged into lp:mir/0.11 at revision 2284.

Changed in mir:
milestone: 0.12.0 → 0.11.0
Launchpad Janitor (janitor) wrote :
Download full text (3.2 KiB)

This bug was fixed in the package mir - 0.11.0+15.04.20150209.1-0ubuntu1

---------------
mir (0.11.0+15.04.20150209.1-0ubuntu1) vivid; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.11.0 (https://launchpad.net/mir/+milestone/0.11.0)
    - Enhancements:
      . Lots more major plumbing in the Android code, on the path to
        supporting external displays.
      . Add support for clang 3.6.
      . Major redesign of server classes in mir::shell,scene and friends
        (still in progress).
      . Added client API for creating dialogs and tooltips.
      . Added new surface states: mir_surface_state_hidden and
        mir_surface_state_horizmaximized.
      . Performance: Use optimally efficient fragment shading when possible.
      . Performance: (Desktop) Composite using double buffering instead of
        triple to reduce visible lag.
      . mir_proving_server: Can now resize windows from any edge or corner
        using the existing Alt+middlebuttondrag.
      . mir_proving_server: Added some demo custom shaders (negative and
        high contrast modes: Super+N/C).
      . mir_proving_server: Can now close clients politely via Alt+F4.
      . Added MirPointerInputEvent (part of the new input API, the old
        MirMotionEvent is still supported also for now).
    - ABI summary: Servers need rebuilding, but clients do not;
      . Mirclient ABI unchanged at 8
      . Mircommon ABI unchanged at 3
      . Mirplatform ABI bumped to 6
      . Mirserver ABI bumped to 29
    - Bug fixes:
      . [regression] mir_demo_server exits immediately with boost
        bad_any_cast exception (LP: #1414630)
      . need way to position menus and tooltips (relative positioning to
        parent) (LP: #1324101)
      . GLibMainLoopTest failure seen in CI (LP: #1413748)
      . Clang builds fail in CI (LP: #1416317)
      . segfault in mir::compositor::GLProgramFamily::Shader::init()
        (LP: #1416482)
      . GLRenderer: The default fragment shader is sub-optimal for alpha=1.0
        (LP: #1350674)
      . mesa::DisplayBuffer::post_update is triple buffered - more laggy than
        it needs to be (LP: #1350725)
      . Cannot connect to nested server when started from a differen vt
        (LP: #1379266)
      . [testfail] AsioMainLoopAlarmTest fails in CI (LP: #1392256)
      . Compositor report inconsistently reports frame time during bypass,
        and render time otherwise (LP: #1408906)
      . [regression] mir_demo_client_fingerpaint doesn't paint anything any
        more (with the mouse) (LP: #1413139)
      . Hardware cursor is always slightly ahead of the composited image
        (LP: #1274408)
      . integration tests are outputting (too many) DisplayServer log
        messages (LP: #1408231)
      . [regression] deploy-and-test.sh doesn't work any more (unless you
        have umockdev installed already) (LP: #1413479)
      . Color Inverse on display. Toggle Negative Image (LP: #1400580)
      . mir-ubuntu-vivid-armhf-ci fails consistently (LP: #1407863)
      . Double-buffered surfaces may lag or freeze if event driven and not
        constantly redrawing (LP: #1395581)
      . Pointer motion and crossing events...

Read more...

Changed in mir (Ubuntu):
status: New → Fix Released
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package qtmir - 0.4.4+15.04.20150209-0ubuntu1

---------------
qtmir (0.4.4+15.04.20150209-0ubuntu1) vivid; urgency=medium

  [ Daniel van Vugt ]
  * QtMir changes required to support the Mir branch of the same name.
    Landing soon. (LP: #1395581)

  [ Alan Griffiths ]
  * Port to the msh::Shell API in Mir

  [ Robert Carr ]
  * Bump build-dep to mir 0.11.
 -- Ubuntu daily release <email address hidden> Mon, 09 Feb 2015 16:29:08 +0000

Changed in qtmir (Ubuntu):
status: New → Fix Released
Changed in mir:
status: Fix Committed → Fix Released
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