RANAD is also a built-in extension.  Does displaylink support XRANDR ?  Anyone knows?<br><br>Try the following patch not to enable XRANDR:<br><br>--- displaylink.c.orig    2009-06-25 12:26:31.856449503 -0600<br>+++ displaylink.c    2009-06-25 12:25:18.633459826 -0600<br>
@@ -545,7 +545,8 @@<br> <br>     xf86DPMSInit(pScreen, fbdevHWDPMSSetWeak(), 0);<br> <br>-    xf86CrtcScreenInit (pScreen);<br>+    /* Don&#39;t enable XRANDR1.2 */<br>+    //xf86CrtcScreenInit (pScreen);<br> <br>     pScreen-&gt;SaveScreen = fbdevHWSaveScreenWeak();<br>
<br><br>JAK<br><br><br><br><div class="gmail_quote">On Thu, Jun 25, 2009 at 11:28 AM, Mulchman <span dir="ltr">&lt;<a href="mailto:mulchman@gmail.com">mulchman@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Mulchman wrote:<br>
<div class="im">&gt; jasonlife wrote:<br>
&gt;<br>
&gt;&gt; It seems the DAMAGE is a built-in extension, you can&#39;t disable it.  I<br>
&gt;&gt; suggest you to debug X server with gdb.  backtrace will show you more<br>
&gt;&gt; information.<br>
</div><div class="im">&gt;&gt; disable GLX and DRI.<br>
&gt;&gt;<br>
&gt;&gt; JAK<br>
</div>Last contents in Xorg.0.log is the loading of DAMAGE and this is what<br>
the stack trace looks like from attaching to X:<br>
<br>
Program received signal SIGSEGV, Segmentation fault.<br>
(gdb) bt full<br>
#0  dixLookupPrivate (privates=0x1c6a100, key=0x0) at<br>
../../dix/privates.c:79<br>
        ptr = &lt;value optimized out&gt;<br>
#1  0x00000000004b58e0 in xf86RandR12CreateScreenResources<br>
(pScreen=0x1c69e70) at ../../../../hw/xfree86/modes/xf86RandR12.c:756<br>
        pScrn = (ScrnInfoPtr) 0x1b281d0<br>
        c = &lt;value optimized out&gt;<br>
        width = &lt;value optimized out&gt;<br>
        height = &lt;value optimized out&gt;<br>
        mmWidth = &lt;value optimized out&gt;<br>
        mmHeight = &lt;value optimized out&gt;<br>
#2  0x00000000004abb8f in xf86CrtcCreateScreenResources<br>
(screen=0x1c69e70) at ../../../../hw/xfree86/modes/xf86Crtc.c:701<br>
No locals.<br>
#3  0x0000000000433c34 in main (argc=10, argv=0x7fffa7c043c8,<br>
envp=&lt;value optimized out&gt;) at ../../dix/main.c:325<br>
        pScreen = (ScreenPtr) 0x1c69e70<br>
        i = 2<br>
        alwaysCheckForInput = {0, 1}<br>
<br>
Maybe dixLookupPrivate doesn&#39;t like key being null (I don&#39;t have source<br>
to be able to tell)? Can RandR be removed?<br>
<br>
-Pat<br>
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</div></div></blockquote></div><br>