I have absolutely the same problem updating from 12.10 to 13.04 yesterday. After the update when I try to access the System Settings -> Sound the windows crashes and dmesg gives:
kernel: [ 101.174326] gnome-control-c[2351]: segfault at 7fff94739f28 ip 00007f79123788ca sp 00007fff94739f30 error 6 in libc-2.17.so[7f791232f000+1be000] Although, it won't open the System Settings -> Sound playback in every applications is normal and pavucontrol also works. Anyway I can't change the default device now. With 12.10 there were no problems. My devices are: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC272 Analog [ALC272 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: USB [E-MU 0202 | USB], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1110303 Title: gnome-control-center crashes for audio controls Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: when I enter gnome control center, and click on the audio tab, the control center crashes. this is what I get in my syslog: gnome-control-c[25328]: segfault at 7fff130b8f78 ip 00007fb64d0019f2 sp 00007fff130b8e40 error 6 in libc-2.15.so[7fb64cfb9000+1b5000] this is on an up-to-date ubuntu 12.10 64 bit the audio devices are: # aplay -l **** PLAYBACK hardvereszközeinek listája **** kártya 0: NVidia [HDA NVidia], eszköz 3: HDMI 0 [HDMI 0] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 kártya 0: NVidia [HDA NVidia], eszköz 7: HDMI 0 [HDMI 0] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 kártya 0: NVidia [HDA NVidia], eszköz 8: HDMI 0 [HDMI 0] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 kártya 0: NVidia [HDA NVidia], eszköz 9: HDMI 0 [HDMI 0] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 kártya 1: REC [UA-30 (44100Hz, Analog REC)], eszköz 0: USB Audio [USB Audio] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 # arecord -l **** CAPTURE hardvereszközeinek listája **** kártya 1: REC [UA-30 (44100Hz, Analog REC)], eszköz 0: USB Audio [USB Audio] Aleszközök: 1/1 0 számú aleszköz: subdevice #0 alsamixer works fine To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1110303/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
