Some further information: Using dmesg I got: [ 20.403982] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC269VB: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 20.403985] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 20.403987] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 20.403988] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 20.403989] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 20.403991] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18 [ 20.403992] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12 [ 20.406256] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 20.407070] IP: [<ffffffff814a0daf>] acpi_ns_walk_namespace+0x4b/0x193 [ 20.407872] PGD 0 [ 20.408659] Oops: 0000 [#1] SMP [ 20.409446] Modules linked in: snd_hda_codec_realtek(+) intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp media snd_hda_codec_generic snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm crct10dif_pclmul crc32_pclmul iwlwifi aesni_intel rtsx_pci_ms memstick cfg80211 snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd gpio_ich aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev input_leds mac_hid serio_raw soundcore shpchp mei_me mei lpc_ich binfmt_misc parport_pc ppdev lp parport autofs4 hid_logitech_hidpp hid_logitech_dj usbhid hid rtsx_pci_sdmmc i915 r8169 video i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt mii ahci fb_sys_fops rtsx_pci libahci drm [ 20.413182] CPU: 1 PID: 379 Comm: systemd-udevd Not tainted 4.4.0-24-generic #43-Ubuntu [ 20.414121] Hardware name: LENOVO 78595BG/78595BG, BIOS 8GET36WW (1.13 ) 08/16/2011 [ 20.415063] task: ffff8800359d2940 ti: ffff8801a7bf0000 task.ti: ffff8801a7bf0000 [ 20.416007] RIP: 0010:[<ffffffff814a0daf>] [<ffffffff814a0daf>] acpi_ns_walk_namespace+0x4b/0x193 [ 20.416971] RSP: 0018:ffff8801a7bf39e8 EFLAGS: 00010202 [ 20.417926] RAX: ffff8801a7bf3a58 RBX: 0000000000000001 RCX: 0000000000000001 [ 20.418893] RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000000000000006 [ 20.419859] RBP: ffff8801a7bf3a38 R08: ffffffff814a13ac R09: 0000000000000000 [ 20.420830] R10: 0000000000000001 R11: ffff880035864680 R12: 0000000000000001 [ 20.421810] R13: ffff8800bf3a4000 R14: 0000000000000000 R15: 0000000000000000 [ 20.422799] FS: 00007fb5f0a1a8c0(0000) GS:ffff8801af500000(0000) knlGS:0000000000000000 [ 20.423797] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.424800] CR2: 0000000000000018 CR3: 00000001a7bb3000 CR4: 00000000000406e0 [ 20.425813] Stack: [ 20.426812] 0000000000000004 0000000000000000 ffffffff814a13ac 00000001ffffffff [ 20.427846] 0000000000000006 0000000000000000 0000000000000000 ffff8800bf3a4000 [ 20.428880] ffff8800350ce000 ffffffffc05e56d0 ffff8801a7bf3a80 ffffffff814a12b2 [ 20.429922] Call Trace: [ 20.430950] [<ffffffff814a13ac>] ? acpi_walk_namespace+0xd0/0xd0 [ 20.432000] [<ffffffff814a12b2>] acpi_get_devices+0x6a/0x94 [ 20.433050] [<ffffffffc05dc350>] ? alc_fixup_disable_aamix+0x20/0x20 [snd_hda_codec_realtek] [ 20.434111] [<ffffffffc05e063c>] hda_fixup_thinkpad_acpi+0xbc/0x1f0 [snd_hda_codec_realtek] [ 20.435190] [<ffffffffc0644985>] apply_fixup+0x1b5/0x2b0 [snd_hda_codec] [ 20.436264] [<ffffffffc0644aa2>] snd_hda_apply_fixup+0x22/0x30 [snd_hda_codec] [ 20.437338] [<ffffffffc05e1706>] patch_alc269+0x246/0x460 [snd_hda_codec_realtek] [ 20.438419] [<ffffffffc063d45b>] hda_codec_driver_probe+0x6b/0x100 [snd_hda_codec] [ 20.439498] [<ffffffff8154d772>] driver_probe_device+0x222/0x4a0 [ 20.440571] [<ffffffff8154da74>] __driver_attach+0x84/0x90 [ 20.441642] [<ffffffff8154d9f0>] ? driver_probe_device+0x4a0/0x4a0 [ 20.442714] [<ffffffff8154b39c>] bus_for_each_dev+0x6c/0xc0 [ 20.443784] [<ffffffff8154cf2e>] driver_attach+0x1e/0x20 [ 20.444852] [<ffffffff8154ca6b>] bus_add_driver+0x1eb/0x280 [ 20.445918] [<ffffffffc05f1000>] ? 0xffffffffc05f1000 [ 20.446972] [<ffffffff8154e380>] driver_register+0x60/0xe0 [ 20.448032] [<ffffffffc063d0da>] __hda_codec_driver_register+0x5a/0x60 [snd_hda_codec] [ 20.449102] [<ffffffffc05f101e>] realtek_driver_init+0x1e/0x1000 [snd_hda_codec_realtek] [ 20.450174] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 20.451243] [<ffffffff811cf151>] ? __vunmap+0x91/0xe0 [ 20.452309] [<ffffffff811eb313>] ? kmem_cache_alloc_trace+0x183/0x1f0 [ 20.453377] [<ffffffff811ec10a>] ? kfree+0x13a/0x150 [ 20.454447] [<ffffffff8118c463>] do_init_module+0x5f/0x1cf [ 20.455508] [<ffffffff81109fb7>] load_module+0x1667/0x1c00 [ 20.456559] [<ffffffff81106560>] ? __symbol_put+0x60/0x60 [ 20.457603] [<ffffffff81212be0>] ? kernel_read+0x50/0x80 [ 20.458635] [<ffffffff8110a794>] SYSC_finit_module+0xb4/0xe0 [ 20.459673] [<ffffffff8110a7de>] SyS_finit_module+0xe/0x10 [ 20.460709] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 [ 20.461738] Code: 28 48 ff c6 4c 0f 44 35 88 c3 d3 00 89 7d d0 89 55 c8 45 31 ff 89 4d cc 4c 89 45 c0 41 83 e4 01 4c 89 4d b8 c7 45 d4 00 00 00 00 <4d> 8b 6e 18 85 db 0f 84 ff 00 00 00 4d 85 ed 0f 84 f6 00 00 00 [ 20.464110] RIP [<ffffffff814a0daf>] acpi_ns_walk_namespace+0x4b/0x193 [ 20.465248] RSP <ffff8801a7bf39e8> [ 20.466381] CR2: 0000000000000018 [ 20.467501] ---[ end trace c0b074f98df6eac7 ]---
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591485 Title: after update from kubuntu 15.10 to 16.04 soundcard isn't recognized any longer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1591485/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
