No audio output from Dell WD19 HDMI/DP after resumed from S3 or s2idle

[AceLan Kao]

[Impact]
Plug-in HDMI/DP cable onto docking station after system resumed from S3/s2idle, there is no audio output from HDMI/DP even if you select the HDMI/DP audio output manually from sound settings.
It shows this in dmesg when try testing speakers from sound settings
[ 2052.030247] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5

[Fix]
This issue has been fixed in 4.16-rc1 by below commit
4918e1f87c5f PM / runtime: Rework pm_runtime_force_suspend/resume()

[Test]
Verified on Dell Latitude 3310 + Dell WD19 docking station

[Regression Potential]
Low, it fixes the device usage counter, and should also fix some other runpm issues.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-99.100

---------------
linux (4.15.0-99.100) bionic; urgency=medium

  * CVE-2020-11884
    - SAUCE: s390/mm: fix page table upgrade vs 2ndary address mode accesses

 -- Marcelo Henrique Cerri <email address hidden> Wed, 22 Apr 2020 15:31:14 -0300

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem - 4.15.0-1080.90

---------------
linux-oem (4.15.0-1080.90) bionic; urgency=medium

  * bionic/linux-oem: 4.15.0-1080.90 -proposed tracker (LP: #1870668)

  * Dell OptiPlex 7070 Ultra can detect external mic after S3 (LP: #1868510)
    - Revert "UBUNTU: SAUCE: ALSA: hda - chain the headset fix to an existing
      quirk"
    - Revert "UBUNTU: SAUCE: ALSA: hda - don't forcibly resume the codec on two
      DELL machines"

  [ Ubuntu: 4.15.0-97.98 ]

  * bionic/linux: 4.15.0-97.98 -proposed tracker (LP: #1871312)
  * All PS/2 ports on PS/2 Serial add-in bracket are not working after S3
    (LP: #1866734)
    - SAUCE: Input: i8042 - fix the selftest retry logic
  * Bionic update: upstream stable patchset 2020-04-03 (LP: #1870604)
    - spi: qup: call spi_qup_pm_resume_runtime before suspending
    - powerpc: Include .BTF section
    - ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
    - spi: pxa2xx: Add CS control clock quirk
    - spi/zynqmp: remove entry that causes a cs glitch
    - drm/exynos: dsi: propagate error value and silence meaningless warning
    - drm/exynos: dsi: fix workaround for the legacy clock name
    - drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
    - altera-stapl: altera_get_note: prevent write beyond end of 'key'
    - dm bio record: save/restore bi_end_io and bi_integrity
    - xenbus: req->body should be updated before req->state
    - xenbus: req->err should be updated before req->state
    - block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
    - parse-maintainers: Mark as executable
    - USB: Disable LPM on WD19's Realtek Hub
    - usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
    - USB: serial: option: add ME910G1 ECM composition 0x110b
    - usb: host: xhci-plat: add a shutdown
    - USB: serial: pl2303: add device-id for HP LD381
    - usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c
    - ALSA: line6: Fix endless MIDI read loop
    - ALSA: seq: virmidi: Fix running status after receiving sysex
    - ALSA: seq: oss: Fix running status after receiving sysex
    - ALSA: pcm: oss: Avoid plugin buffer overflow
    - ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks
    - iio: trigger: stm32-timer: disable master mode when stopping
    - iio: magnetometer: ak8974: Fix negative raw values in sysfs
    - mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
    - staging: rtl8188eu: Add device id for MERCUSYS MW150US v2
    - staging/speakup: fix get_word non-space look-ahead
    - intel_th: Fix user-visible error codes
    - intel_th: pci: Add Elkhart Lake CPU support
    - rtc: max8907: add missing select REGMAP_IRQ
    - xhci: Do not open code __print_symbolic() in xhci trace events
    - memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
    - mm: slub: be more careful about the double cmpxchg of freelist
    - mm, slub: prevent kmalloc_node crashes and memory leaks
    - page-flags: fix a crash at SetPageError(THP_SWAP)
    - x86/mm: split vmalloc_sync_all()
    - USB: cdc-acm: fix close_delay and closing_wait units in TIOCSSERIAL
    - USB: cdc...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem - 4.15.0-1087.97

---------------
linux-oem (4.15.0-1087.97) bionic; urgency=medium

  [ Ubuntu: 4.15.0-106.107 ]

  * CVE-2020-0543
    - SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
    - SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
    - SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
      mitigation
    - SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation documentation
    - SAUCE: x86/speculation: Add Ivy Bridge to affected list

  [ Ubuntu: 4.15.0-103.104 ]

  * bionic/linux: 4.15.0-103.104 -proposed tracker (LP: #1881272)
  * "BUG: unable to handle kernel paging request" when testing
    ubuntu_kvm_smoke_test.kvm_smoke_test with B-KVM in proposed (LP: #1881072)
    - KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs
    - KVM: VMX: Mark RCX, RDX and RSI as clobbered in vmx_vcpu_run()'s asm blob

linux-oem (4.15.0-1082.92) bionic; urgency=medium

  * bionic/linux-oem: 4.15.0-1082.92 -proposed tracker (LP: #1878833)

  * Add support for Ambiq micro AM1805 RTC chip (LP: #1876667)
    - [Config] updateconfigs for RTC AM1805

  [ Ubuntu: 4.15.0-102.103 ]

  * bionic/linux: 4.15.0-102.103 -proposed tracker (LP: #1878856)
  * Packaging resync (LP: #1786013)
    - update dkms package versions
  * debian/scripts/file-downloader does not handle positive failures correctly
    (LP: #1878897)
    - [Packaging] file-downloader not handling positive failures correctly
  * Kernel log flood "ceph: Failed to find inode for 1" (LP: #1875884)
    - ceph: don't check quota for snap inode
    - ceph: quota: cache inode pointer in ceph_snap_realm
  * [UBUNTU 18.04] zpcictl --reset - contribution for kernel (LP: #1870320)
    - s390/pci: Recover handle in clp_set_pci_fn()
    - s390/pci: Fix possible deadlock in recover_store()
  * Bionic update: upstream stable patchset 2020-05-12 (LP: #1878256)
    - drm/edid: Fix off-by-one in DispID DTD pixel clock
    - drm/qxl: qxl_release leak in qxl_draw_dirty_fb()
    - drm/qxl: qxl_release leak in qxl_hw_surface_alloc()
    - drm/qxl: qxl_release use after free
    - btrfs: fix block group leak when removing fails
    - btrfs: fix partial loss of prealloc extent past i_size after fsync
    - mmc: sdhci-xenon: fix annoying 1.8V regulator warning
    - mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers
    - ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter
    - ALSA: hda/hdmi: fix without unlocked before return
    - ALSA: pcm: oss: Place the plugin buffer overflow checks correctly
    - PM: ACPI: Output correct message on target power state
    - PM: hibernate: Freeze kernel threads in software_resume()
    - dm verity fec: fix hash block number in verity_fec_decode
    - RDMA/mlx5: Set GRH fields in query QP on RoCE
    - RDMA/mlx4: Initialize ib_spec on the stack
    - vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
    - vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()
    - iommu/qcom: Fix local_base status check
    - scsi: target/iblock: fix WRITE SAME zeroing
    - iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled...