[Bug 106271] New: Switch between AMD hybrid graphics (HD 8650G / HD 8970M) makes hardware reset.

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=106271

            Bug ID: 106271
           Summary: Switch between AMD hybrid graphics (HD 8650G / HD
                    8970M) makes hardware reset.
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.2.3
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: aneroid at inbox.ru
        Regression: No

Created attachment 190531
  --> https://bugzilla.kernel.org/attachment.cgi?id=190531&action=edit
lspci -vvv

Hello, 
Hardware: MSI GX60 with two graphic cards, integrated inside A10 GPU and
discrete AMD R9 M290X.

Integrated card is the main card by default:

sudo cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:00:01.0
1:DIS: :DynOff:0000:01:00.0

If I try to swich to discrete card:

sudo echo DIS > /sys/kernel/debug/vgaswitcheroo/switch

Hardware reboot happend and BIOS starting.

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