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[Bug 993612] Re: erratic callback along top and left screen edges

 

Hi,
There are actually 2 problems: one with the dock and one with Compiz.

I've pushed a patch to fix the one in the dock (the first pixel was not
considered to be inside the dock, now it's ok).

The other one though depends on your Compiz settings:
if you activate the "cube rotation" plug-in in Compiz (via ccsm), then Compiz reserves the left and right edges of the screen for itself (to be able to drag windows from a face of the cube to another for instance).
which means that the left and right pixels lines are virtually out of the screen.
deactivating the plug-in solves the problem.

Can you confirm please ?

** Changed in: cairo-dock-core
       Status: New => Triaged

** Changed in: cairo-dock-core
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/993612

Title:
  erratic callback along top and left screen edges

Status in Cairo-Dock : Core:
  Triaged

Bug description:
  I have upgraded my laptop (specs below) to Kubuntu 12.04, and along
  with it came the 2.0.0.1 version of Glx-Dock. I am experiencing a bug
  that happens when using the trackpad, but is not reproducible with a
  mouse. I have the dock on the left side of the screen, set to auto-
  hide and to appear when hitting a 200 x 2 zone. If I keep my cursor at
  the very left edge of the screen while I move it up and down the dock,
  or if I continue to press the cursor to the left edge of the screen,
  the dock will continuously disappear and reappear. I have created a
  YouTube video so you can see this bug in action:
  http://youtu.be/7rZrldD9hZU

  This bug did not occur with the version of Glx-Dock in Oneiric.  Here
  are some other notes on this bug:

   . The bug occurs whether the callback mode is the screen border, "where the dock is", or "hit a zone".
   . The bug occurs when the dock is on the top or left edge of the screen, but *not* on the bottom or right.
   . The bug occurs whether using Cairo-Dock or Glx-Dock.
   . The bug occurs whether desktop effects are enabled or disabled.
   . I tried deleting my ~/.config/cairo-dock folder, but the bug still persists. 

  One more thing: on multiple systems, I can reproduce what I believe is
  a related symptom of this same bug even when using a mouse. Here's
  how:

  1. With the dock set to auto-hide on the left, move the cursor to the very left edge of the screen. Right-click on the dock. This should bring up a menu, but instead causes GLX-Dock to hide.
  2. Move the cursor to the edge to show the dock again, but this time, move the cursor one pixel from the left and right-click... the menu appears!

  ** My System **
  OS: Kubuntu 12.04 i386 w/ KDE SC 4.8.2
  PC: HP Pavilion dv1550se laptop
  CPU: Intel(R) Pentium(R) M processor 1.60GHz
  RAM: 1.5GB DDR400
  Video: Mobile 915GM/GMS/910GML Express Graphics Controller
  Linux Kernel: 3.2.0-24-generic
  Screen Resolution: 1280 x 768

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References