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[Lars von Bentivegni <von.bentivegni.lars@xxxxxxxxx>]

** Description changed:

  Laptop Lenovo Y50-70
  
  (Kubuntu)
  
  Description:    Ubuntu 15.04
  Release:        15.04
  
  Linux L 3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015
  x86_64 x86_64 x86_64 GNU/Linux
  
  Xorg freezes (i think so because kill Xorg helps).
  There are 2 GPU's in the laptop . No matter which driver is enabled. After a few minutes the whole system does not longer react except the mouse-cursor . the control bar. Alt + Tab works >=twice , then you can only kill Xorg (trough strg+alt+f1 or so). Then lightdm shows up, i login to be able to repeat the whole process  a few minutes later.
  
  have tried all available drivers nouveau, nvidia(340,346), intel+nvidia
  trough bumblebee right configured, purged all nvidia and bumblebee and
  only nouveau NOTHING HELPS :( .
  
  It come ACPI errors and if I start with the Nvidia driver vgaarb error's
  
  the freeze is accidentally. I cannot say now the freeze comes sometimes
  it takes minutes sometimes seconds after login.
  
  I think it must be something with the driver maybe bumblebee but as i
  said i removed the package's already and the problem persists. Maybe
  ACPI state?
  
+ Kubuntu 14.04 was working better not perfect but much better.
+ 
  My other operating system (windows 7) is operating perfect. But actually
  I prefer linux for many reasons.
  
  (really sorry about my "bad" English)
  
  f something is not clear , I will definitely try to improve my
  formulation.

-- 
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https://bugs.launchpad.net/bugs/1471830

Title:
  Not sure if it hangs on Xorg but the UI freezes maybe something driver
  relevant?

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Laptop Lenovo Y50-70

  (Kubuntu)

  Description:    Ubuntu 15.04
  Release:        15.04

  Linux L 3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015
  x86_64 x86_64 x86_64 GNU/Linux

  Xorg freezes (i think so because kill Xorg helps).
  There are 2 GPU's in the laptop . No matter which driver is enabled. After a few minutes the whole system does not longer react except the mouse-cursor . the control bar. Alt + Tab works >=twice , then you can only kill Xorg (trough strg+alt+f1 or so). Then lightdm shows up, i login to be able to repeat the whole process  a few minutes later.

  I have started Chrome, Dolphin, Kate but I do not think these
  applications are responsible for this bug.

  I have tried all available drivers nouveau, nvidia(340,346),
  intel+nvidia trough bumblebee right configured, purged all nvidia and
  bumblebee and only nouveau NOTHING HELPS :( .

  It come ACPI errors and if I start with the Nvidia driver vgaarb
  error's

  the freeze is accidentally. I cannot say now the freeze comes
  sometimes it takes minutes sometimes seconds after login.

  I think it must be something with the driver maybe bumblebee but as i
  said i removed the package's already and the problem persists. Maybe
  ACPI state?

  Kubuntu 14.04 was working better not perfect but much better.

  My other operating system (windows 7) is operating normal

  (really sorry about my "bad" English)

  if something is not clear , I will definitely try to improve my
  formulation.

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