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[Raymond <1437512@xxxxxxxxxxxxxxxxxx>]

12826.925350] WARNING: CPU: 1 PID: 1971 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:4203 intel_modeset_check_state+0x6b8/0x750 [i915]()
[12826.925354] Modules linked in: cuse ccm deflate ctr twofish_generic twofish_i586 twofish_common camellia_generic serpent_sse2_i586 xts serpent_generic lrw gf128mul glue_helper ablk_helper cryptd blowfish_generic blowfish_common cast5_generic cast_common des_generic cmac xcbc rmd160 crypto_null af_key xfrm_algo rfcomm bnep binfmt_misc snd_hda_codec_idt snd_hda_codec_hdmi gpio_ich dell_wmi sparse_keymap dell_laptop dcdbas snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi coretemp joydev snd_seq r852 serio_raw arc4 sm_common snd_seq_device nand iwl3945 nand_ecc snd_timer iwlegacy nand_bch bch mac80211 nand_ids mtd snd lpc_ich r592 cfg80211 btusb bluetooth i915 memstick wmi drm_kms_helper mac_hid drm soundcore video i2c_algo_bit parport_pc shpchp ppdev lp parport hid_generic usbhid hid psmouse ahci sdhci_pci firewire_ohci libahci firewire_core pata_acpi sdhci crc_itu_t sky2
[12826.925500] CPU: 1 PID: 1971 Comm: Xorg Tainted: G        W     3.13.0-48-generic #80-Ubuntu
[12826.925504] Hardware name: Dell Inc. Inspiron 1525                   /0U990C, BIOS A13 06/27/2008
[12826.925508]  00000000 00000000 e700bd40 c1655f92 00000000 e700bd70 c1056a7e c1833268
[12826.925522]  00000001 000007b3 f8c4bb64 0000106b f8c03af8 f8c03af8 e8025c00 00000000
[12826.925536]  e80241c0 e700bd80 c1056b42 00000009 00000000 e700bdd4 f8c03af8 f8c4bb64
[12826.925550] Call Trace:
[12826.925558]  [<c1655f92>] dump_stack+0x41/0x52
[12826.925567]  [<c1056a7e>] warn_slowpath_common+0x7e/0xa0
[12826.925614]  [<f8c03af8>] ? intel_modeset_check_state+0x6b8/0x750 [i915]
[12826.925658]  [<f8c03af8>] ? intel_modeset_check_state+0x6b8/0x750 [i915]
[12826.925666]  [<c1056b42>] warn_slowpath_null+0x22/0x30
[12826.925711]  [<f8c03af8>] intel_modeset_check_state+0x6b8/0x750 [i915]
[12826.925726]  [<c10910cf>] ? __wake_up_locked+0x1f/0x30
[12826.925770]  [<f8bffc77>] ? intel_crtc_update_dpms+0x67/0x90 [i915]
[12826.925815]  [<f8c03be8>] intel_connector_dpms+0x58/0x60 [i915]
[12826.925847]  [<f864078a>] drm_mode_obj_set_property_ioctl+0x39a/0x3c0 [drm]
[12826.925855]  [<c1091507>] ? __wake_up_sync_key+0x47/0x50
[12826.925886]  [<f86407b0>] ? drm_mode_obj_set_property_ioctl+0x3c0/0x3c0 [drm]
[12826.925918]  [<f86407e3>] drm_mode_connector_property_set_ioctl+0x33/0x40 [drm]
[12826.925943]  [<f8631792>] drm_ioctl+0x472/0x500 [drm]
[12826.925981]  [<f86407b0>] ? drm_mode_obj_set_property_ioctl+0x3c0/0x3c0 [drm]
[12826.925992]  [<c11dbe31>] ? sysfs_notify_dirent+0x51/0x70
[12826.925998]  [<c11dbe8f>] ? sysfs_notify+0x3f/0x80
[12826.926006]  [<c136650a>] ? backlight_generate_event+0x4a/0x60
[12826.926014]  [<c1366cff>] ? brightness_store+0x9f/0xe0
[12826.926021]  [<c1165589>] ? __kmalloc+0x49/0x1e0
[12826.926045]  [<f8631320>] ? drm_free_buffer+0x30/0x30 [drm]
[12826.926053]  [<c118b092>] do_vfs_ioctl+0x2e2/0x4d0
[12826.926061]  [<c12ff98b>] ? lockref_put_or_lock+0xb/0x30
[12826.926068]  [<c118e088>] ? dput+0x48/0x150
[12826.926075]  [<c119601d>] ? mntput+0x1d/0x30
[12826.926082]  [<c117b9e5>] ? __fput+0x155/0x210
[12826.926089]  [<c118b2e0>] SyS_ioctl+0x60/0x80
[12826.926097]  [<c166430d>] sysenter_do_call+0x12/0x12
[12826.926102] ---[ end trace df38ab00e22f1850 ]--

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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/1437512

Title:
  [Inspiron 1525, SigmaTel STAC9228, Speaker, Internal] unmute problem

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  system goes into power save mode on AC,
  resuming from login screen
  keboard unmute does not unmute alsa control SPEAKER
  master, PCM will unmute.

  power save mode adds undesired MUTE of alsa's speaker

  expected power manager to not mute speaker only MASTER PCM

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16
  Uname: Linux 3.13.0-48-generic i686
  ApportVersion: 2.14.1-0ubuntu3.8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  kiera      2273 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Fri Mar 27 19:30:10 2015
  InstallationDate: Installed on 2014-04-21 (340 days ago)
  InstallationMedia: Xubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140205)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful
  Symptom_Card: Built-in Audio - HDA Intel
  Symptom_Jack: Speaker, Internal
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: None of the above
  Title: [Inspiron 1525, SigmaTel STAC9228, Speaker, Internal] Playback problem
  UpgradeStatus: Upgraded to trusty on 2015-03-24 (3 days ago)
  dmi.bios.date: 06/27/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A13
  dmi.board.name: 0U990C
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA13:bd06/27/2008:svnDellInc.:pnInspiron1525:pvr:rvnDellInc.:rn0U990C:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1525
  dmi.sys.vendor: Dell Inc.

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