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[Bug 1385786] [NEW] Resizing X frame is slow in Xubuntu when compositing is enabled

 

Public bug reported:

My environment:

- Xubuntu 14.04 (fresh installed)
- emacs24: 24.3+1-2ubuntu1
- xorg: 1:7.7+1ubuntu8
- Xorg driver: intel


Problem:

When "display compositing" is enabled, resizing X frame of Emacs is
slow, i.e., the frame cannot follow the cursor smoothly.


How to reproduce:

- Make sure "display compisting" is enabled.

    $ xfce4-settings-manager
    Select "Window Manager Tweaks"
    Select "Compositor" tab
    Check "Enable display compositing"

- Start Emacs in window mode

    $ emacs -q

- Resize the Emacs frame by dragging the frame edge.


Workaround:

Disable display compisiting.

** Affects: emacs24 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1385786

Title:
  Resizing X frame is slow in Xubuntu when compositing is enabled

Status in “emacs24” package in Ubuntu:
  New

Bug description:
  My environment:

  - Xubuntu 14.04 (fresh installed)
  - emacs24: 24.3+1-2ubuntu1
  - xorg: 1:7.7+1ubuntu8
  - Xorg driver: intel

  
  Problem:

  When "display compositing" is enabled, resizing X frame of Emacs is
  slow, i.e., the frame cannot follow the cursor smoothly.

  
  How to reproduce:

  - Make sure "display compisting" is enabled.

      $ xfce4-settings-manager
      Select "Window Manager Tweaks"
      Select "Compositor" tab
      Check "Enable display compositing"

  - Start Emacs in window mode

      $ emacs -q

  - Resize the Emacs frame by dragging the frame edge.

  
  Workaround:

  Disable display compisiting.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/emacs24/+bug/1385786/+subscriptions


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