it seem that there were oops in the system log
[11355.432036] Modules linked in: wacom nls_iso8859_1 snd_usb_audio snd_usbmidi_lib rfcomm bnep nvidia(POF) btusb bluetooth joydev x86_pkg_temp_thermal intel_powerclamp coretemp kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd ppdev hp_wmi sparse_keymap mxm_wmi arc4 iwldvm mac80211 snd_hda_codec_hdmi iwlwifi cfg80211 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev hp_accel lpc_ich tpm_infineon drm lis3lv02d input_polldev snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer mei_me snd soundcore microcode psmouse serio_raw parport_pc tpm_tis mei wmi mac_hid lp parport usb_storage hid_generic usbhid hid e1000e firewire_ohci sdhci_pci ahci firewire_core libahci sdhci ptp crc_itu_t pps_core video [11355.432085] CPU: 2 PID: 71 Comm: khubd Tainted: PF O 3.12.0-5-generic #13-Ubuntu -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1234814 Title: [HP EliteBook 8760w, IDT 92HD81B1X5] automute when plugging in headphones mutes master channel Status in “alsa-driver” package in Ubuntu: New Bug description: I am running kubuntu 13.10 on a hp 8760w laptop lspci identifies the soundcard as 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) plugging in headphones causes the Master channel to drop to zero rather than the PCM channel, also when a new sound source connects to pulse-audio the pcm and master volumes switch. (I am using the kde mixer applet - to check the channels) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1234814/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
