compiz team mailing list archive

[Christopher Townsend <christopher.townsend@xxxxxxxxxxxxx>]

I got a stack trace of the condition   It's stuck polling in
xcb_wait_for_reply() which is part of libxcb.  In the past, there have
been issues in this area in libxcb, but not for some time apparently.
It's hard to tell at this point if Compiz is doing something wrong prior
to this hang or if this is some issue in libxcb.

One very interesting data point is that in my debugging, I was able to
reproduce this issue 100% using LibreOffice.  Then during my debugging,
the issue suddenly went away.  I tried a different user on the machine
and can reproduce it 100% of the time.  I've tried resetting all
Compiz/Unity settings back to default, but still cannot reproduce this
using this user.  It is very strange why one user on the machine can
reproduce this while another cannot.  This leads me to belive it's a
setting that can trigger this, but I cannot figure out what it is.

** Attachment added: "compiz-maximize-hang.txt"
   https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1244754/+attachment/3908914/+files/compiz-maximize-hang.txt

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https://bugs.launchpad.net/bugs/1244754

Title:
  compiz freezes when dragging a window to the top bar after being semi-
  maximized

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