gnome-settings-daemon crash

[Milan Oravec <moravec ukf sk>]

Hi all, I' trying to get full GS 3.6 experience in ubuntu 12.10 x64. I
have instaled packages from ppa:gnome3-team/gnome3 and 3.6.1
gnome-settings-daemon and gcc form ppa:ricotz/staging. System is running
fine so far, and I found one problem:

When I press brightness adjustments keys gnome-settings-daemon will crash:

gnome-settings-[2445]: segfault at 51 ip 00007f1f75ff9705 sp
00007fffc95d8260 error 4 in libmedia-keys.so[7f1f75fee000+25000]
gnome-settings-[2662]: segfault at 51 ip 00007fe079623705 sp
00007fffcf1363e0 error 4 in libmedia-keys.so[7fe079618000+25000]

Other Fn keys are working OK, is this known problem?

System is sony vaio sz laptop.

Thanx in advance.

-- 
Best regards

Milan Oravec