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[Launchpad Bug Tracker <1763271@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-oem - 4.13.0-1024.27

---------------
linux-oem (4.13.0-1024.27) xenial; urgency=medium

  * linux-oem: 4.13.0-1024.27 -proposed tracker (LP: #1763296)

  * [8086:3e92] display becomes blank after S3 (LP: #1763271)
    - drm/i915/edp: Allow alternate fixed mode for eDP if available.
    - drm/i915/dp: rename intel_dp_is_edp to intel_dp_is_port_edp
    - drm/i915/dp: make is_edp non-static and rename to intel_dp_is_edp
    - drm/i915/edp: Do not do link training fallback or prune modes on EDP

  * No network with e1000e driver on 4.13.0-38-generic (LP: #1762693)
    - e1000e: Fix e1000_check_for_copper_link_ich8lan return value.

linux-oem (4.13.0-1023.25) xenial; urgency=medium

  * linux-oem: 4.13.0-1023.25 -proposed tracker (LP: #1761464)

  * Fix Runtime PM for r8169 (LP: #1757422)
    - r8169: only enable PCI wakeups when WOL is active
    - PCI: Add pcim_set_mwi(), a device-managed pci_set_mwi()
    - r8169: switch to device-managed functions in probe
    - r8169: remove netif_napi_del in probe error path
    - r8169: remove unneeded rpm ops in rtl_shutdown
    - r8169: improve runtime pm in rtl8169_check_link_status
    - r8169: improve runtime pm in general and suspend unused ports

  * Ryzen/Raven Ridge USB ports do not work (LP: #1756700)
    - xhci: Fix front USB ports on ASUS PRIME B350M-A
    - SAUCE: xhci: Fix USB ports for Dell Inspiron 5775

  * Miscellaneous Ubuntu changes
    - Rebase to 4.13.0-39.44

  [ Ubuntu: 4.13.0-39.44 ]

  * linux: 4.13.0-39.44 -proposed tracker (LP: #1761456)
  * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-
    image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2
    Intel) // CVE-2017-5754
    - x86/mm: Reinitialize TLB state on hotplug and resume
  * intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-
    image-4.13.0-37-generic) (LP: #1759920) // CVE-2017-5715 (Spectre v2 Intel)
    - Revert "x86/mm: Only set IBPB when the new thread cannot ptrace current
      thread"
    - x86/speculation: Use Indirect Branch Prediction Barrier in context switch
  * DKMS driver builds fail with: Cannot use CONFIG_STACK_VALIDATION=y, please
    install libelf-dev, libelf-devel or elfutils-libelf-devel (LP: #1760876)
    - [Packaging] include the retpoline extractor in the headers
  * retpoline hints: primary infrastructure and initial hints (LP: #1758856)
    - [Packaging] retpoline-extract: flag *0xNNN(%reg) branches
    - x86/speculation, objtool: Annotate indirect calls/jumps for objtool
    - x86/speculation, objtool: Annotate indirect calls/jumps for objtool on 32bit
    - x86/paravirt, objtool: Annotate indirect calls
    - [Packaging] retpoline -- add safe usage hint support
    - [Packaging] retpoline-check -- only report additions
    - [Packaging] retpoline -- widen indirect call/jmp detection
    - [Packaging] retpoline -- elide %rip relative indirections
    - [Packaging] retpoline -- clear hint information from packages
    - KVM: x86: Make indirect calls in emulator speculation safe
    - KVM: VMX: Make indirect call speculation safe
    - x86/boot, objtool: Annotate indirect jump in secondary_startup_64()
    - SAUCE: early/late -- annotate indirect calls in early/late initialisation
      code
    - SAUCE: vga_set_mode -- avoid jump tables
    - [Config] retpoline -- switch to new format
    - [Packaging] retpoline hints -- handle missing files when RETPOLINE not
      enabled
    - [Packaging] final-checks -- remove check for empty retpoline files
  * retpoline: ignore %cs:0xNNN constant indirections (LP: #1752655)
    - [Packaging] retpoline -- elide %cs:0xNNNN constants on i386
  * zfs system process hung on container stop/delete (LP: #1754584)
    - SAUCE: Fix non-prefaulted page deadlock (LP: #1754584)
  * zfs-linux 0.6.5.11-1ubuntu5 ADT test failure with linux 4.15.0-1.2
    (LP: #1737761)
    - SAUCE: (noup) Update zfs to 0.6.5.11-1ubuntu3.2
  * AT_BASE_PLATFORM in AUXV is absent on kernels available on Ubuntu 17.10
    (LP: #1759312)
    - powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features
  * btrfs and tar sparse truncate archives (LP: #1757565)
    - Btrfs: move definition of the function btrfs_find_new_delalloc_bytes
    - Btrfs: fix reported number of inode blocks after buffered append writes
  * efifb broken on ThunderX-based Gigabyte nodes (LP: #1758375)
    - drivers/fbdev/efifb: Allow BAR to be moved instead of claiming it
  * Intel i40e PF reset due to incorrect MDD detection (continues...)
    (LP: #1723127)
    - i40e/i40evf: Account for frags split over multiple descriptors in check
      linearize
  * Fix an issue that when system in S3, USB keyboard can't wake up the system.
    (LP: #1759511)
    - ACPI / PM: Allow deeper wakeup power states with no _SxD nor _SxW
  * [8086:3e92] display becomes blank after S3 (LP: #1759188)
    - drm/i915: Apply Display WA #1183 on skl, kbl, and cfl
  * add audio kernel patches for Raven (LP: #1758364)
    - ALSA: hda: Add Raven PCI ID
    - ALSA: hda/realtek - Fix ALC700 family no sound issue
  * Cpu utilization showing system time for kvm guests (performance) (sysstat)
    (LP: #1755979)
    - KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN
  * Kernel panic on a nfsroot system (LP: #1734327)
    - Revert "UBUNTU: SAUCE: LSM stacking: add stacking support to apparmor
      network hooks"
    - Revert "UBUNTU: SAUCE: LSM stacking: LSM: Infrastructure management of the
      remaining blobs"
  * can't record sound via front headset port on the Dell Precision 3630
    (LP: #1759088)
    - ALSA: hda/realtek - Fix Dell headset Mic can't record
  * speaker can't output sound anymore after system resumes from S3 on a lenovo
    machine with alc257 (LP: #1758829)
    - ALSA: hda/realtek - Fix speaker no sound after system resume
  * hda driver initialization takes too much time on the machine with coffeelake
    audio controller [8086:a348] (LP: #1758800)
    - ALSA: hda - Force polling mode on CFL for fixing codec communication
  * Let headset-mode initialization be called on Dell Precision 3930
    (LP: #1757584)
    - ALSA: hda/realtek - Add headset mode support for Dell laptop
  * ubuntu_zram_smoke test will cause soft lockup on Artful ThunderX ARM64
    (LP: #1755073)
    - SAUCE: crypto: thunderx_zip: Fix fallout from CONFIG_VMAP_STACK
  * [Hyper-V] include kvp fix for Avoid reading past allocated blocks from KVP
    file (LP: #1750349)
    - hv: kvp: Avoid reading past allocated blocks from KVP file
  * IMA policy parsing is broken in 4.13 (LP: #1755804)
    - ima/policy: fix parsing of fsuuid
  * external mic not work on Dell OptiPlex 7460 AIO (LP: #1755954)
    - ALSA: hda/realtek - Add headset mode support for Dell laptop
  * sbsa watchdog crashes thunderx2 system (LP: #1755595)
    - watchdog: sbsa: use 32-bit read for WCV
  * CVE-2018-8043
    - net: phy: mdio-bcm-unimac: fix potential NULL dereference in
      unimac_mdio_probe()

 -- Timo Aaltonen <timo.aaltonen@xxxxxxxxxxxxx>  Thu, 12 Apr 2018
11:12:33 +0300

** Changed in: linux-oem (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5754

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-8043

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https://bugs.launchpad.net/bugs/1763271

Title:
  [8086:3e92] display becomes blank after S3

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Invalid
Status in linux-oem package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  Invalid
Status in linux-oem source package in Xenial:
  Fix Released
Status in linux source package in Artful:
  Fix Committed
Status in linux-oem source package in Artful:
  Invalid

Bug description:
  [Impact]
  The display becomes black after S3 with the following error messages.

  dmesg:
  [ 60.546305] [drm:intel_dp_start_link_train [i915]] Link Training failed at link rate = 540000, lane count = 4

  Xorg.0.log:
  [ 60.748] (EE) modeset(0): failed to set mode: Invalid argument
  [ 60.748] (WW) modeset(0): hotplug event: connector 48's link-state is BAD, tried resetting the current mode. You may be left with a black screen if this fails...

  [Fix]
  Looks like link training fallback fails sometimes with eDP, we need this commit to fix the issue.

  commit a306343bcd7df89d9d45a601929e26866e7b7a81 (refs/bisect/bad)
  Author: Manasi Navare <manasi.d.navare@xxxxxxxxx>
  Date: Thu Oct 12 12:13:38 2017 -0700

      drm/i915/edp: Do not do link training fallback or prune modes on
  EDP

  [Regression Potential]
  Should be low.
  To avoid conflicts, we introduce 4 commits, I'll try explaining them below

  a306343 drm/i915/edp: Do not do link training fallback or prune modes on EDP
     This is the fix commit and the behavior only changes when DP is eDP, it does nothing if DP is eDP. Should be fine to not do link training fallback and not emit Hotplug Uevent to userspace to start modeset, since its eDP, the display is fixed.

  1853a9d drm/i915/dp: make is_edp non-static and rename to intel_dp_is_edp
  7b91bf7 drm/i915/dp: rename intel_dp_is_edp to intel_dp_is_port_edp
     Above 2 commits do function name renaming only.

  dc911f5 drm/i915/edp: Allow alternate fixed mode for eDP if available.
     Change the prototype of function "intel_panel_init()" and adding one extra argument, should have small impact on the display.

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