[Bug 1848980] Re: system hangs on suspend

[Kai-Heng Feng]

Unfortunately I don't see any attempt to suspend from the log. The
system could hang before writing logs to the disk.

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4-rc5/

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https://bugs.launchpad.net/bugs/1848980

Title:
  system hangs on suspend

Status in linux package in Ubuntu:
  Confirmed
Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid

Bug description:
  hardware description: ZenBook UX433FN_UX433FN
  model name	: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz
  Description:	Ubuntu 18.04.3 LTS
  kernel: 5.0.0-31-generic
  *-display                 
         description: VGA compatible controller
         product: Intel Corporation
         vendor: Intel Corporation
         physical id: 2
         bus info: pci at 0000:00:02.0
         version: 02
         width: 64 bits
         clock: 33MHz
         capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
         configuration: driver=i915 latency=0
         resources: irq:145 memory:b2000000-b2ffffff memory:90000000-9fffffff ioport:5000(size=64) memory:c0000-dffff
    *-display
         description: 3D controller
         product: GP108M [GeForce MX150]
         vendor: NVIDIA Corporation
         physical id: 0
         bus info: pci at 0000:02:00.0
         version: a1
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress bus_master cap_list rom
         configuration: driver=nvidia latency=0
         resources: irq:147 memory:b3000000-b3ffffff memory:a0000000-afffffff memory:b0000000-b1ffffff ioport:4000(size=128) memory:b4000000-b407ffff

  While manually or by closing the lid the system apparently completes the suspend process. 
   cat /sys/power/mem_sleep 
  [s2idle] deep

  and the power button start flashing.
  when I tried to wake it up it never starts over again. It just shows a prompt at the upper left, after about 3 minutes shows the graphical interface asking for login password and after login in nothing works.
  I have to manually reset by pushing the power button.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.34
  ProcVersionSignature: Ubuntu 5.0.0-31.33~18.04.1-generic 5.0.21
  Uname: Linux 5.0.0-31-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Oct 20 23:52:04 2019
  InstallationDate: Installed on 2019-10-16 (4 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  juan       5463 F.... pulseaudio
   /dev/snd/pcmC0D0p:   juan       5463 F...m pulseaudio
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 18.04
  InstallationDate: Installed on 2019-10-16 (5 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 13d3:56cb IMC Networks 
   Bus 001 Device 003: ID 8087:0aaa Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. ZenBook UX433FN_UX433FN
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-31-generic root=UUID=df80048f-8c7f-4c9f-954d-47aa10371903 ro quiet splash vt.handoff=1
  ProcVersionSignature: Ubuntu 5.0.0-31.33~18.04.1-generic 5.0.21
  RelatedPackageVersions:
   linux-restricted-modules-5.0.0-31-generic N/A
   linux-backports-modules-5.0.0-31-generic  N/A
   linux-firmware                            1.173.9
  Tags:  bionic
  Uname: Linux 5.0.0-31-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/22/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX433FN.307
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX433FN
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX433FN.307:bd05/22/2019:svnASUSTeKCOMPUTERINC.:pnZenBookUX433FN_UX433FN:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX433FN:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: ZenBook
  dmi.product.name: ZenBook UX433FN_UX433FN
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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