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[Bug 1554509] Re: Screen remains black after resume from hibernation

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YS1:
1) Did this issue not occur in a Ubuntu release prior to 16.04?
2) To keep this relevant to upstream, could you please test the latest mainline kernel (4.7-rc5) and advise to the results?

** No longer affects: xserver-xorg-video-ati (Ubuntu)

** Description changed:

- I am currently testing Xubuntu 16.04 beta. Hibernation does not work
- properly.
- 
- I ran sudo pm-hibernate, then rebooted.
+ Hibernation does not work properly. I ran sudo pm-hibernate, then rebooted.
  The hibernation part itself seems to work nice.
  
- Resuming presents the following behaviour :
+ Resuming presents the following behaviour:
   - the booting sequence starts
   - the console shows the progress of the resuming process (10%, 20%, etc.)
   - my monitor switches to graphical mode like I would expect, but it then remains black instead of showing my desktop. It does not go to "sleep mode" like it does when the computer is off or the DVI cable is disconnected.
  
  The computer remains responsive, and if music was playing when
  hibernation started, it properly resumes. I can also use the keyboard
  (to run sudo reboot now, for example). Switching to another virtual
  console (Ctrl+Alt+1, Ctrl+Alt+7) does not improve the situation.
  
- ProblemType: Bug
- DistroRelease: Ubuntu 16.04
- Package: pm-utils 1.4.1-16
- ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3
- Uname: Linux 4.4.0-10-generic x86_64
+ WORKAROUND: Use kernel parameter:
+ nomodeset
+ 
+ ---
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
- Date: Tue Mar  8 14:03:50 2016
- InstallationDate: Installed on 2016-03-06 (2 days ago)
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC2:  yann       1556 F.... pulseaudio
+  /dev/snd/controlC0:  yann       1556 F.... pulseaudio
+  /dev/snd/controlC1:  yann       1556 F.... pulseaudio
+ DistroRelease: Ubuntu 16.04
+ HibernationDevice: RESUME=UUID=574e9971-0906-47a9-9936-a1c6749b0d90
+ InstallationDate: Installed on 2016-03-06 (5 days ago)
  InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
- PackageArchitecture: all
+ IwConfig:
+  enp0s25   no wireless extensions.
+ 
+  lo        no wireless extensions.
+ MachineType: Dell Inc. Precision T1600
+ Package: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
+ PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=fr_FR
   TERM=xterm
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
- SourcePackage: pm-utils
- UpgradeStatus: No upgrade log present (probably fresh install)
- --- 
- ApportVersion: 2.20-0ubuntu3
- Architecture: amd64
- AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC2:  yann       1556 F.... pulseaudio
-  /dev/snd/controlC0:  yann       1556 F.... pulseaudio
-  /dev/snd/controlC1:  yann       1556 F.... pulseaudio
- DistroRelease: Ubuntu 16.04
- HibernationDevice: RESUME=UUID=574e9971-0906-47a9-9936-a1c6749b0d90
- InstallationDate: Installed on 2016-03-06 (5 days ago)
- InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
- IwConfig:
-  enp0s25   no wireless extensions.
-  
-  lo        no wireless extensions.
- MachineType: Dell Inc. Precision T1600
- Package: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
- PackageArchitecture: amd64
- ProcEnviron:
-  LANGUAGE=fr_FR
-  TERM=xterm
-  PATH=(custom, no user)
-  LANG=fr_FR.UTF-8
-  SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-11-generic root=UUID=93ce274f-fa99-4a90-9081-7e70aeec5d83 ro
  ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
  PulseList:
-  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
-  No PulseAudio daemon running, or not running as session daemon.
+  Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
+  No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-11-generic N/A
-  linux-backports-modules-4.4.0-11-generic  N/A
-  linux-firmware                            1.156
+  linux-restricted-modules-4.4.0-11-generic N/A
+  linux-backports-modules-4.4.0-11-generic  N/A
+  linux-firmware                            1.156
  RfKill:
-  0: hci0: Bluetooth
-  	Soft blocked: no
-  	Hard blocked: no
+  0: hci0: Bluetooth
+   Soft blocked: no
+   Hard blocked: no
  Tags:  xenial xenial
  Uname: Linux 4.4.0-11-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
-  
+ 
  _MarkForUpload: True
  dmi.bios.date: 09/24/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A16
  dmi.board.name: 06NWYK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/24/2013:svnDellInc.:pnPrecisionT1600:pvr01:rvnDellInc.:rn06NWYK:rvrA01:cvnDellInc.:ct6:cvr:
  dmi.product.name: Precision T1600
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

** Attachment removed: "lspci"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554509/+attachment/4592623/+files/lspci

** Attachment removed: "JournalErrors.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554509/+attachment/4592622/+files/JournalErrors.txt

** Attachment removed: "Dependencies.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554509/+attachment/4592621/+files/Dependencies.txt

** Tags added: kernel-bug-exists-upstream-4.5-rc7

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

-- 
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https://bugs.launchpad.net/bugs/1554509

Title:
  Screen remains black after resume from hibernation

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hibernation does not work properly. I ran sudo pm-hibernate, then rebooted.
  The hibernation part itself seems to work nice.

  Resuming presents the following behaviour:
   - the booting sequence starts
   - the console shows the progress of the resuming process (10%, 20%, etc.)
   - my monitor switches to graphical mode like I would expect, but it then remains black instead of showing my desktop. It does not go to "sleep mode" like it does when the computer is off or the DVI cable is disconnected.

  The computer remains responsive, and if music was playing when
  hibernation started, it properly resumes. I can also use the keyboard
  (to run sudo reboot now, for example). Switching to another virtual
  console (Ctrl+Alt+1, Ctrl+Alt+7) does not improve the situation.

  WORKAROUND: Use kernel parameter:
  nomodeset

  ---
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  yann       1556 F.... pulseaudio
   /dev/snd/controlC0:  yann       1556 F.... pulseaudio
   /dev/snd/controlC1:  yann       1556 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=574e9971-0906-47a9-9936-a1c6749b0d90
  InstallationDate: Installed on 2016-03-06 (5 days ago)
  InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
  IwConfig:
   enp0s25   no wireless extensions.

   lo        no wireless extensions.
  MachineType: Dell Inc. Precision T1600
  Package: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
  PackageArchitecture: amd64
  ProcEnviron:
   LANGUAGE=fr_FR
   TERM=xterm
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-11-generic root=UUID=93ce274f-fa99-4a90-9081-7e70aeec5d83 ro
  ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-11-generic N/A
   linux-backports-modules-4.4.0-11-generic  N/A
   linux-firmware                            1.156
  RfKill:
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  Tags:  xenial xenial
  Uname: Linux 4.4.0-11-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 09/24/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A16
  dmi.board.name: 06NWYK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/24/2013:svnDellInc.:pnPrecisionT1600:pvr01:rvnDellInc.:rn06NWYK:rvrA01:cvnDellInc.:ct6:cvr:
  dmi.product.name: Precision T1600
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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