Xinerama focus freeze problem

Bert Wesarg bert.wesarg at
Fri Feb 13 05:19:53 PST 2009

On Fri, Feb 13, 2009 at 13:28, Harald Schmalzbauer
<h.schmalzbauer at> wrote:
> Hello,

> I have two cards with 3 monitors and running the nvidia driver (180.29) with
> xorg-server 1.5.3 on FreeBSD 7.1-stable.
> With Xinerama enabled after about 100 focus changes between windows on two
> different "monitors" the focus freezes. It seems that mouse position doesn't
> get correctly interpreted, since I have cursor shape changes on one monitore
> where the corresponding window really is on another monitor (at approx that
> position).
I may have the same problem.  But I can rule-out the nvidia driver!  I
just bought a new hardware setup, which switched the video hardware
from nvidia to ati and I still have the problem.  I run X.Org X Server
1.5.2 on Ubuntu 8.10 x86-64 with two monitors on one card.  The
symptom is similar, that is I can move the mouse pointer but the shape
does no change corresponding to the 'underground' and clicks don't get
through to the applications.  I still can handle all with the
keyboard, i.e. the focus.


> The real problem is that also the window manager (xfwm) isn't able to switch
> between windows anymore, so I'm not sure if this is xorg or nvidia related.
> But when I log in form a remote machine and kill the application which holds
> the focus, the whole X server dies.
> Any hints appreciated.
> Thanks in advance,
> -Harry
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