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I have a notebook Santech t67 with the following features : CPU intel core i7-6700HQ, 16 Gb RAM, Nvidia GeForce GTX 970M + intel integrated card. I installed Xubuntu 16.04 in dual boot with Windows 10 without problems. I have a problem ( sorry for the repetition ) regarding the management of dedicated Nvidia video card and integrated Intel card. I installed the proprietary Nvidia and Intel drivers and I set the Intel one to improve the autonomy of the pc. The system works perfectly, only when I turn it off or reboot it freezes in a black screen with a white dash in the top left corner, forcing me to force it to close. If I use the Nvidia card this does not happen ( the computer turns off and restarts normally) . Someone has the same problem or know a possible solution?

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Does this happen at all when you disable the option to save your session upon Shutdown? Maybe play around with the hibernation/sleep options a little. It sounds like it might be linked to this particular problem.

  • The option you mentioned is disabled. As I said in the main post, this problem happens only if I use Intel card. I've just tried again switching to Nvidia card and the system turn off and reboot normally without freezeing. – Riccardo May 24 '16 at 13:02
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I used to have the same problem with my MSIGE62VR, the fix was to add:

acpi_osi=! acpi_osi="Windows 2009"

in the kernel parameters.

You can find more details here

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