Bug#565773: [xserver-xorg-core] re-open: Segfaults when lock screen in xf86GetGammaRampSize()

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

reopen 565773
thank you


Philippe Teuwen wrote:
> Package: xserver-xorg-core
> Version: 2:1.7.5-1
>
> I have the same issue when an external screen is attached and internal
> screen is off.
> I thought upgrading xserver-xorg-core to 2:1.7.5-1 would solve the issue
> as this bug was closed but apparently the bug is not fixed properly yet
> so I guess this deserves a re-opening.
>
> Here is the backtrace:
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000052793b in xf86GetGammaRampSize (pScreen=0x25eecb0) at
> ../../../../hw/xfree86/common/xf86cmap.c:1080
> 1080    ../../../../hw/xfree86/common/xf86cmap.c: No such file or directory.
>         in ../../../../hw/xfree86/common/xf86cmap.c
> (gdb) bt full
> #0  0x000000000052793b in xf86GetGammaRampSize (pScreen=0x25eecb0) at
> ../../../../hw/xfree86/common/xf86cmap.c:1080
>   

Indeed, as Uwe reported in another bug report, the problem is not that
crtc->randr_crtc is NULL (fixed in 1.7.5), it's about crtc being NULL. I
am talking with upstream about this.

Brice