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[Bug 1442447] Missing required logs.

 

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1442447

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1442447

Title:
  Swichable Graphics not working - Intel Hd 4400-Radeon 8850M- DELL -
  Latitude 3540

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  The point is, the radeon venus pro hd 8850m cannot be turned on on linux, you can try official or open source drivers.
  I think the problem is by the dynamic switchable mode thats make a vga switch on windows without get a black screen, the discrete gpu are connected by hardware to the internal intel graphics card that cannot be turned off or you will have no image xD. Also on windows the intel drivers+amd must be instaled to turn amd graphics on, but on linux thats impossible.

  Already tryed all drivers from amd, on ubuntu 14.04 and 14.10, it will
  install ok and when ubuntu restart it will be on low graphics mode and
  only back to work if i purge then.

  
  "You are sure the both vgas are working on linux? If you can i will give my Latitude 3540 to you! hahaha
  By the f*****  Dynamic Mode switchable graphics and the impossibility to turn the intel adapter off by bios settings, Its impossible to turn on the Venus Pro Radeon - HD 8850m on ubuntu!
  Already tried with versions 14.04 amd 14.10 too."

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