Digital Output HDMI not recognized at all: [HDA-Intel - HDA Intel PCH, playback] Playback problem Cannot turn on display power on i915

[The Tomato]

Digital playback was working just fine. HDMI connected to 32" Vizio television from msi Z97 PC Mate Motherboard. Now no digital output, not even as an option. Analog audio works just fine. When I plug headphones in there is no problem. that is all identified in Settings panel and terminal commands used for troubleshooting. but the HDMI output does not appear to be recognized as everything says Analog. Ubuntu 15.04

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
Uname: Linux 3.19.0-18-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: canibal 2344 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue May 26 14:59:34 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-08-05 (293 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Type: Only some of outputs are working
Title: [HDA-Intel - HDA Intel PCH, playback] Playback problem
UpgradeStatus: Upgraded to vivid on 2015-04-26 (30 days ago)
dmi.bios.date: 04/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V4.0
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97 PC Mate(MS-7850)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV4.0:bd04/18/2014:svnMSI:pnMS-7850:pvr1.0:rvnMSI:rnZ97PCMate(MS-7850):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7850
dmi.product.version: 1.0
dmi.sys.vendor: MSI

[Raymond (superquad-vortex2)]

May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'switch_mm' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_context_free' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_context_create' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_ppgtt_release' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_ppgtt_create' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'intel_gpu_freq_change' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_reg_rw' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_flip_complete' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_flip_request' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_ring_wait_end' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_ring_wait_begin' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_request_wait_end' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_request_wait_begin' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_request_complete' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_request_retire' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_request_add' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_ring_flush' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_ring_dispatch' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_ring_sync_to' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_evict_vm' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_evict_everything' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_evict' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_destroy' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_clflush' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_fault' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_pread' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_pwrite' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_change_domain' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_vma_unbind' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_vma_bind' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_gem_object_create' directory
May 26 14:37:03 username-MS-7850 kernel: Could not create debugfs 'i915_pipe_update_end' directory
May 26 14:37:03 username-MS-7850 kernel:...

[The Tomato (thetom8o)]

the patch does seem to have fixed the problem. I am getting full sound thru HDMI output. All is well again. Thank you.