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Date: Wed, 10 Mar 2010 22:40:36 -0800
From: Tim Kientzle <kientzle@freebsd.org>
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Subject: X11 crash on exit
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Trying to get X up and running on my Aspire One netbook
and having a couple of problems.  Here's the first:

Whenever I exit, the server gets a Signal 11 and crashes,
corrupting the screen.  So far, I've been able to just
tap the power button to get a clean reboot (in particular,
it's just X crashing, not the whole system).

FreeBSD 9.0-CURRENT r201154M: Tue Dec 29 09:27:29 PST 2009 GENERIC  i386

xorg.conf is pretty vanilla except for the two monitors:  1600x1200 
external on the VGA connector and 1024x600 LVDS display.  This was 
autoprobed by the server:

Section "Device"
         Identifier  "Card0"
         Driver      "intel"
         VendorName  "Intel Corporation"
         BoardName   "Mobile 945GME Express Integrated Graphics Controller"
         BusID       "PCI:0:2:0"
         Option "monitor-LVDS" "LVDSMonitor"
         Option "monitor-VGA" "VGAMonitor"
EndSection

A backtrace from the server core:
#0  0x08092402 in DeliverEventsToWindow ()
#1  0x0816e37e in ShouldFreeInputMasks ()
#2  0x081788e9 in SProcXListDeviceProperties ()
#3  0x0807ecf5 in DisableDevice ()
#4  0x0807edfa in DisableDevice ()
#5  0x080cbc5d in xf86PostMotionEvent ()
#6  0x0807eafb in ActivateDevice ()
#7  0x0812d168 in LogSetParameter ()
#8  0x0812d74f in AuditF ()
#9  0x080bc373 in xf86PrintBacktrace ()
#10 <signal handler called>
#11 0x081534d6 in ProcRRDeleteOutputProperty ()
#12 0x00000030 in ?? ()
#13 0x081534bb in ProcRRDeleteOutputProperty ()
#14 0x5a5a5a5a in ?? ()
#15 0x287367c0 in ?? ()
#16 0xbfbfecb8 in ?? ()
#17 0x0806ed9e in ProcSetSelectionOwner ()