kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

slumbergod, just to clarify, this bug report is only about your computer
suspending to a black screen. Any other issues regarding mouse
detection, VPN, etc. would need to be handled in a separate report, one
per issue. Hence, when using the latest upstream kernel, was the suspend
to black screen problem reproducible?

** Description changed:

- I'm using a Samsung NP350E5C laptop and I've been having strange issues.
- I gave up on Xubuntu 13.10 and went back to Xubuntu 13.04 until Xubuntu
- 14.04 LTS came out. I'd hoped that the strange issues had been resolved
- but since doing a clean install I have been dogged by weird issues.
- 
- Here's what is causing me grief at the moment. I leave my laptop on 24/7
- and just close the lid when I am away from the machine. I go into the
- system's power settings to disable suspend and hibernation so that
- closing the lid does does nothing. With the kernel that 14.04 shipped
- with it was as though those settings were completely ignored. I'd close
- the lid and when I opened it again, there was a blank screen and I was
- unable to do anything at all, not even start an alternative log in. The
- only option was to hold the power button until the machine ungracefully
- turned off.
- 
- I then applied some hacks I found on line to permanently disable
- hibernation and suspend. I've also installed all the newer kernels as
- they have been offered in synaptic. The problem changed to being
- **intermittent** - my system would randomly hang when I opened the lid.
- 
- With the latest two kernels (including the 27 one that just came out) it
- is now happening **more often**! I'll wake up in the morning, open my
- laptop and there's the blank screen with no way to wake the system up.
- 
- I wonder if there is something strange with Samsung laptops and the
- kernels at the moment. I have to add the acpi_vendor backlight tweak to
- get the brightness working correctly. And for the first  kernel releases
- under 14.04 my usb wireless mouse would not be recognised after a reboot
- -- I'd have to unplug the transmitter then plug it in again.
- 
- I'm still experiencing random system slow downs where my machine slows
- to a crawl. Trying to move the mouse across the screen would take 5 mins
- in little jumps and starts, with no mouse clicks being registered.
- 
- Looking on the forums (http://ubuntuforums.org/showthread.php?t=2224455)
- I see I am not alone and it has been suggested I try a mainline
- lowlatency kernel which as of today I will try.
- 
- I am happy to try any suggestions to help resolve this because this is a
- good machine and it was frustrating having to give up on ubuntu 13.10
- and stay with the older, more dependable versions.
+ When I close the lid of my laptop in either 13.10 or 14.04, then open it
+ again, intermittently there is a blank screen and I am unable to do
+ anything at all, not even start an alternative log in. The only option
+ is to hold the power button in. In the system's power settings suspend
+ and hibernation are disabled but those settings would seem ignored. This
+ issue does not occur in 13.04.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-27-generic 3.13.0-27.50
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  slumbergod   2145 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  slumbergod   2145 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Sun May 18 09:14:41 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-04-18 (29 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140414)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 350V5C/351V5C/3540VC/3440VC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic.efi.signed root=UUID=7ef0aef5-c4f9-45fb-b729-95b463a492d6 ro quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.13.0-27-generic N/A
-  linux-backports-modules-3.13.0-27-generic  N/A
-  linux-firmware                             1.127.2
+  linux-restricted-modules-3.13.0-27-generic N/A
+  linux-backports-modules-3.13.0-27-generic  N/A
+  linux-firmware                             1.127.2
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/04/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P09ABE
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP350E5C-A02AU
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: BOARD REVISION 00
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP09ABE:bd07/04/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn350V5C/351V5C/3540VC/3440VC:pvrP09ABE.012.CP:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP350E5C-A02AU:rvrBOARDREVISION00:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 350V5C/351V5C/3540VC/3440VC
  dmi.product.version: P09ABE.012.CP
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1320554

Title:
  [Samsung NP350E5C-A02AU] Suspend hang with blank screen on lid open

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When I close the lid of my laptop in either 13.10 or 14.04, then open
  it again, intermittently there is a blank screen and I am unable to do
  anything at all, not even start an alternative log in. The only option
  is to hold the power button in. In the system's power settings suspend
  and hibernation are disabled but those settings would seem ignored.
  This issue does not occur in 13.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-27-generic 3.13.0-27.50
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  slumbergod   2145 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Sun May 18 09:14:41 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-04-18 (29 days ago)
  InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140414)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 350V5C/351V5C/3540VC/3440VC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic.efi.signed root=UUID=7ef0aef5-c4f9-45fb-b729-95b463a492d6 ro quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/04/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P09ABE
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP350E5C-A02AU
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: BOARD REVISION 00
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP09ABE:bd07/04/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn350V5C/351V5C/3540VC/3440VC:pvrP09ABE.012.CP:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP350E5C-A02AU:rvrBOARDREVISION00:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 350V5C/351V5C/3540VC/3440VC
  dmi.product.version: P09ABE.012.CP
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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