TVOut issues with intel video driver

[rglowery at exemail.com.au]

Peter,

Thanks for your advice, it has saved me heaps of time getting the stack
backtrace.

As far as the crash goes, does the following help anyone diagnose why
"xrandr --output TV --set TV_FORMAT 576p --auto" is crashing X on my
Ubuntu Gutsy Gibbon amd64 install?

Program received signal SIGSEGV, Segmentation fault.
xf86ProbeOutputModes (scrn=0x805fe0, maxX=1024, maxY=1024)
    at ../../../../hw/xfree86/modes/xf86Crtc.c:1177
1177    ../../../../hw/xfree86/modes/xf86Crtc.c: No such file or directory.
        in ../../../../hw/xfree86/modes/xf86Crtc.c
(gdb) bt full
#0  xf86ProbeOutputModes (scrn=0x805fe0, maxX=1024, maxY=1024)
    at ../../../../hw/xfree86/modes/xf86Crtc.c:1177
        i = <value optimized out>
        config = (xf86CrtcConfigPtr) 0x809960
        o = 3
#1  0x00000000004b986b in xf86RandR12GetInfo12 (pScreen=0x818970,
    rotations=<value optimized out>)
    at ../../../../hw/xfree86/modes/xf86RandR12.c:990
        pScrn = (ScrnInfoPtr) 0x805fe0
#2  0x0000000000526093 in RRGetInfo (pScreen=0x818970)
    at ../../randr/rrinfo.c:195
        pScrPriv = (rrScrPrivPtr) 0x8641b0
        rotations = 0
        i = 19739936
#3  0x00000000005299ca in ProcRRGetScreenSizeRange (client=0x9d0480)
    at ../../randr/rrscreen.c:222
        rep = {type = 1 '\001', pad = 0 '\0', sequenceNumber = 22, length
= 0,
  minWidth = 46628, minHeight = 126, maxWidth = 0, maxHeight = 0, pad0 = 156,
  pad1 = 0, pad2 = 5302284, pad3 = 0}
        pWin = <value optimized out>
        pScreen = (ScreenPtr) 0xc1
#4  0x00000000004514eb in Dispatch () at ../../dix/dispatch.c:457
        clientReady = <value optimized out>

> On Tue, 2007-10-09 at 14:57 +1000, rglowery at exemail.com.au wrote:
>
>> I'll try to use gdb to get a stack backtrace if that will help.
>
> You may know this already, but you'll need to run gdb from a different
> machine, perhaps via ssh.
>
> Let the X server run start normally, ssh in from a different machine,
> start gdb on its own,
>
> then type
> "attach <PID>"
>
> where <PID> is the process ID of your running X server.
>
> you'll need the dbgsym package for the X server, or to have compiled
> yourself, as the Ubuntu packages are stripped.
>
> -dbgsym packages are available at the following apt source:
> deb http://people.ubuntu.com/~ubuntu-archive/ddebs gutsy main universe
>
>
> Apologies if you know any / all of the above, hope you get the issue
> debugged ok.
>
> Regards,
>
> Peter Clifton
>
>
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