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Date:      Sun, 7 Jun 2009 17:11:00 +0200
From:      Matthias Apitz <guru@unixarea.de>
To:        freebsd-x11@freebsd.org
Subject:   8-CURRENT && xserver 1.6 && NVIDIA 180.44 in Xinerama mode: repeatable crash after some minutes
Message-ID:  <20090607151100.GA2042@current.Sisis.de>

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Hello,

I'm running the in the Subject: mentioned combination with a very recent
CURRENT (May 28) on my laptop (Dell Precision M4400);
all is fine with X and NVIDIA until I enable a second
external display which I want to use in 1024x768 mode (to attach a
beamer) and connected with the main display of the laptop 1920x1200 in
the so called "Xinerama mode" where one can drag & drop applications from
one screen to the other.  Having enabled this,
after some random time (between some minutes and an hour) the Xserver crashes
with always the same backtrace:


Program received signal SIGSEGV, Segmentation fault.
0x0810de29 in miPointerWarpCursor ()
(gdb) bt
#0  0x0810de29 in miPointerWarpCursor ()
#1  0x080b9841 in xf86ReconfigureLayout ()
#2  0x0810dabe in miPointerUpdateSprite ()
#3  0x08167083 in RenderSampleCeilY ()
#4  0x0808db79 in ConfineToShape ()
#5  0x08091418 in CheckMotion ()
#6  0x0817072a in ProcessOtherEvent ()
#7  0x081975fb in XkbHandleActions ()
#8  0x08197edd in XkbProcessKeyboardEvent ()
#9  0x0819052b in AccessXFilterPressEvent ()
#10 0x08190773 in AccessXFilterPressEvent ()
#11 0x08121544 in SetScreenSaverTimer ()
#12 0x08121b47 in WaitForSomething ()
#13 0x081daba0 in AnyClientsWriteBlocked ()
(gdb)

I have started already a thread in the NVIDIA support corner for
FreeBSD which can be seen here:

http://www.nvnews.net/vbulletin/showthread.php?t=133977

The crash occurs with all recent NVIDIA versions, i.e. 180.44 (from the
ports), 180.60 and 185.18.14 directly fetched and compiled from NVIDIA
locations.

I'm not sure if this is a bug in NVIDIA's driver or in the Xserver
itself. What could I do to nail this down and get it solved? Would be
nice if I could use my laptop as well for presentations with low-res
beamers and not always depend on some other laptop for this.

Thanks for your time reading all this and for any hint.

	matthias
-- 
Matthias Apitz
t +49-89-61308 351 - f +49-89-61308 399 - m +49-170-4527211
e <guru@unixarea.de> - w http://www.unixarea.de/
People who hate Microsoft Windows use Linux but people who love UNIX use FreeBSD.



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