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[jose <o1485726@xxxxxxxxx>]

Same here. As I mentioned here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302/comments/48
and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302/comments/49
, kernels v 4.4 and 4.6 from http://kernel.ubuntu.com/~kernel-
ppa/mainline/ allow me to suspend.

The system won't respond to SysRq+REISUB. I tried running "systemctl
suspend" from the tty after killing lightdm, but that didn't help.

My system is a laptop, HP DV6-6174la, it has an AMD APU (A6-3400m,
integrated GPU: radeon hd 6520g) + dGPU (radeon hd 6750m).

BTW, if there is a pattern here, it seems to be the radeon module... Did
Ubuntu introduce custom changes to radeon? (OTOH, I've read reports from
ubuntu and other distros, that the kernel 4.4, and only this kernel,
caused many machines to be unable to suspend, but this bug seems to be
specific to ubuntu's kernel).

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1589139

Title:
  [HP Pavilion dv6-6b52sl Entertainment Notebook PC] No suspend on
  Ubuntu 16.04

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When i try to suspend the system the screen turns off, the PC becomes
  really hot(the fan won't stop working) and i'm not able to do anything
  after this. The only option is to hard-press the power button to turn
  it off.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.40
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  isgjevori   1922 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Jun  4 21:16:29 2016
  HibernationDevice: RESUME=UUID=adbe72f6-5838-4cbc-90fa-8976d46f10af
  InstallationDate: Installed on 2016-04-21 (43 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: Hewlett-Packard HP Pavilion dv6 Notebook PC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=03a1d74a-7657-4df3-a6cc-b1adc563b16f ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/10/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.01
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 17FD
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 10.31
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.01:bd08/10/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr0593110000204610000620100:rvnHewlett-Packard:rn17FD:rvr10.31:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion dv6 Notebook PC
  dmi.product.version: 0593110000204610000620100
  dmi.sys.vendor: Hewlett-Packard

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