RANAD is also a built-in extension. Does displaylink support XRANDR ? Anyone knows? Try the following patch not to enable XRANDR: --- displaylink.c.orig 2009-06-25 12:26:31.856449503 -0600 +++ displaylink.c 2009-06-25 12:25:18.633459826 -0600 @@ -545,7 +545,8 @@ xf86DPMSInit(pScreen, fbdevHWDPMSSetWeak(), 0); - xf86CrtcScreenInit (pScreen); + /* Don't enable XRANDR1.2 */ + //xf86CrtcScreenInit (pScreen); pScreen->SaveScreen = fbdevHWSaveScreenWeak(); JAK <div class="gmail_quote">On Thu, Jun 25, 2009 at 11:28 AM, Mulchman <<a href="mailto:mulchman@gmail.com">mulchman@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Mulchman wrote: <div class="im">> jasonlife wrote: > >> It seems the DAMAGE is a built-in extension, you can't disable it. I >> suggest you to debug X server with gdb. backtrace will show you more >> information. </div><div class="im">>> disable GLX and DRI. >> >> JAK </div>Last contents in Xorg.0.log is the loading of DAMAGE and this is what the stack trace looks like from attaching to X: Program received signal SIGSEGV, Segmentation fault. (gdb) bt full #0 dixLookupPrivate (privates=0x1c6a100, key=0x0) at ../../dix/privates.c:79 ptr = <value optimized out> #1 0x00000000004b58e0 in xf86RandR12CreateScreenResources (pScreen=0x1c69e70) at ../../../../hw/xfree86/modes/xf86RandR12.c:756 pScrn = (ScrnInfoPtr) 0x1b281d0 c = <value optimized out> width = <value optimized out> height = <value optimized out> mmWidth = <value optimized out> mmHeight = <value optimized out> #2 0x00000000004abb8f in xf86CrtcCreateScreenResources (screen=0x1c69e70) at ../../../../hw/xfree86/modes/xf86Crtc.c:701 No locals. #3 0x0000000000433c34 in main (argc=10, argv=0x7fffa7c043c8, envp=<value optimized out>) at ../../dix/main.c:325 pScreen = (ScreenPtr) 0x1c69e70 i = 2 alwaysCheckForInput = {0, 1} Maybe dixLookupPrivate doesn't like key being null (I don't have source to be able to tell)? Can RandR be removed? -Pat <div><div></div><div class="h5">_______________________________________________ Libdlo mailing list <a href="mailto:Libdlo@lists.freedesktop.org">Libdlo@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/libdlo" target="_blank">http://lists.freedesktop.org/mailman/listinfo/libdlo</a> </div></div></blockquote></div>