check the system log (dmesg) seem have oops
[ 262.656056] encoder's hw state doesn't match sw tracking (expected 0, found 1) [ 262.656058] Modules linked in: michael_mic(F) arc4(F) pci_stub(F) vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) dm_crypt(F) rfcomm(F) bnep(F) bluetooth(F) snd_hda_codec_idt(F) snd_hda_codec_hdmi(F) snd_hda_intel(F) snd_hda_codec(F) parport_pc(F) ppdev(F) snd_hwdep(F) snd_pcm(F) lib80211_crypt_tkip(F) snd_seq_midi(F) wl(POF) snd_rawmidi(F) snd_seq_midi_event(F) joydev(F) snd_seq(F) snd_timer(F) snd_seq_device(F) coretemp(F) cfg80211(F) dell_wmi(F) gpio_ich(F) sparse_keymap(F) snd(F) lib80211(F) psmouse(F) dell_laptop(F) r852(F) sm_common(F) nand(F) r592(F) dcdbas(F) mtd(F) memstick(F) microcode(F) nand_ids(F) nand_bch(F) bch(F) mac_hid(F) lpc_ich(F) serio_raw(F) nand_ecc(F) soundcore(F) snd_page_alloc(F) lp(F) parport(F) binfmt_misc(F) hid_generic(F) usbhid(F) hid(F) firewire_ohci(F) firewire_core(F) crc_itu_t(F) i915(F) drm_kms_helper(F) ahci(F) libahci(F) sdhci_pci(F) sdhci(F) drm(F) i2c_algo_bit(F) sky2(F) wmi(F) video(F) [ 262.656105] Pid: 1210, comm: Xorg Tainted: PF W O 3.8.0-32-generic #47~precise1-Ubuntu -- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1244413 Title: [Inspiron 1525, SigmaTel STAC9228, Speaker, Internal] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1244413/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
