Mir

[regression] Dragging windows by the titlebar is incredibly slow and laggy

Bug #1454128 reported by Daniel van Vugt
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Fix Released
Medium
Alan Griffiths
mir (Ubuntu)
Fix Released
Undecided
Unassigned
Vivid
New
Undecided
Unassigned

Bug Description

[regression] Dragging windows by the titlebar is incredibly slow and laggy.

Test case:
1. mir_demo_server
2. mir_demo_client_...
3. Drag the client by the titlebar

Expected: Window moves in response to the mouse.
Observed: Titlebar turns dark grey, window hardly moves, only very slowly.

Strangely Alt+drag is still fast so the slowness is related to the titlebar changing colour.

I've bisected the problem and it was introduced in:
------------------------------------------------------------
revno: 2563 [merge]
author: Alan Griffiths <email address hidden>
committer: Tarmac
branch nick: development-branch
timestamp: Mon 2015-05-11 17:14:31 +0000
message:
  examples: repaint the titlebar to give an indicate the (in)active status of a surface.

  Approved by Kevin DuBois, PS Jenkins bot.
------------------------------------------------------------

Also worth noting I have my mouse configured for 1000Hz instead of the default 125Hz (usbhid.mousepoll kernel parameter). But of course it should still be responsive.

Tags: regression

Related branches

Changed in mir:
status: New → Triaged
Changed in mir:
status: Triaged → Confirmed
assignee: nobody → Alan Griffiths (alan-griffiths)
Changed in mir:
status: Confirmed → In Progress
Changed in mir:
milestone: none → 0.14.0
Revision history for this message
PS Jenkins bot (ps-jenkins) wrote :

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 0.14.0

Changed in mir:
status: In Progress → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package mir - 0.14.0+15.10.20150722-0ubuntu1

---------------
mir (0.14.0+15.10.20150722-0ubuntu1) wily; urgency=medium

  [ Andreas Pokorny ]
  * Fix missing ABI renaming in Mirplatform
  * Bump Mirserver platform graphics to 3
  * Fix mirprotobuf ABI break

  [ CI Train Bot ]
  * New rebuild forced.

 -- CI Train Bot <email address hidden> Wed, 22 Jul 2015 18:01:49 +0000

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