Program received signal SIGSEGV, Segmentation fault.
0x081df2bb in VidModeGetFirstModeline (scrnIndex=0, mode=0xbfb97f28, dotClock=0xbfb97f24)
    at xf86VidMode.c:224
224	    pVidMode->Next =  pVidMode->First->next;
(gdb) bt f
#0  0x081df2bb in VidModeGetFirstModeline (scrnIndex=0, mode=0xbfb97f28, dotClock=0xbfb97f24)
    at xf86VidMode.c:224
        pScrn = 0xa1a9b58
        pVidMode = 0xb890bf0
#1  0x081df9de in VidModeGetNumOfModes (scrnIndex=0) at xf86VidMode.c:446
        mode = 0x0
        dotClock = 0
        nummodes = 0
#2  0xb7327387 in ProcXF86VidModeGetAllModeLines (client=0xbc1f140) at xf86vmode.c:522
        stuff = 0xba32fa0
        rep = {type = 56 '8', pad1 = 249 '\371', sequenceNumber = 46899, length = 3216605144, 
          modecount = 3073554661, pad2 = 197259720, pad3 = 134726699, pad4 = 3216605192, pad5 = 135349318, 
          pad6 = 136640420}
        mdinf = {dotclock = 195243928, hdisplay = 32680, hsyncstart = 49081, hsyncend = 5165, 
          htotal = 2058, hskew = 197259720, vdisplay = 65068, vsyncstart = 46899, vsyncend = 52338, 
          vtotal = 1, pad1 = 19, flags = 0, reserved1 = 136563436, reserved2 = 3216605112, 
          reserved3 = 134930797, privsize = 196822016}
        oldmdinf = {dotclock = 3216605080, hdisplay = 4120, hsyncstart = 0, hsyncend = 12184, 
          htotal = 2979, vdisplay = 47107, vsyncstart = 46915, vsyncend = 51948, vtotal = 2083, 
          flags = 134926601, privsize = 19}
        mode = 0x0
        modecount = 195243928
        dotClock = 0
        n = 0
        ver = 2
#3  0xb732b9ce in ProcXF86VidModeDispatch (client=0xbc1f140) at xf86vmode.c:1684
        stuff = 0xba32fa0
#4  0x08098813 in Dispatch () at dispatch.c:439
        clientReady = 0xbb68018
        result = 0
        client = 0xbc1f140
        nready = 0
        icheck = 0x8251fdc
        start_tick = 320
#5  0x08066a6e in main (argc=4, argv=0xbfb98154, envp=0xbfb98168) at main.c:286
        i = 1
        alwaysCheckForInput = {0, 1}