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

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

[bugzilla-daemon]

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@kernel-bugs.osdl.org
          Reporter: aneroid@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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[Bug 106271] Switch between AMD hybrid graphics (HD 8650G / HD 8970M) makes hardware reset.

[bugzilla-daemon]

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

--- Comment #1 from Aneroid <aneroid@inbox.ru> ---
Created attachment 190541
  --> https://bugzilla.kernel.org/attachment.cgi?id=190541&action=edit
glxinfo

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

[bugzilla-daemon]

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

--- Comment #2 from Aneroid <aneroid@inbox.ru> ---
Created attachment 190551
  --> https://bugzilla.kernel.org/attachment.cgi?id=190551&action=edit
dmesg

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

[bugzilla-daemon]

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

Lukas Wunner <lukas@wunner.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lukas@wunner.de

--- Comment #3 from Lukas Wunner <lukas@wunner.de> ---
The pitcairn GPU says "No connectors reported connected with modes". I suppose
that's the discrete GPU?

Does this machine have a hardware mux at all? If not, the discrete GPU can only
be used to offload rendering and switching won't work. I guess the only thing
that can be improved in this case is to make radeon_atpx_switchto() a no-op on
muxless machines.

If on the other hand the machine *does* have a mux, the question is why the
pitcairn GPU didn't find any modes. Are there none in VBT? If so, the issue can
probably be solved by temporarily switching DDC to the discrete GPU on probe.
I'm working on patches to do that with apple-gmux on the MacBook Pro.

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

[bugzilla-daemon]

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

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
According to the log, the dGPU has a single VGA port.  I doubt it's muxed, just
about all AMD PX laptops have been muxless for a while now.  It's probably a
VGA port on a docking station.  As Lukas mentioned, if you want to use the
dGPU, you can only use it for offscreen rendering.  See this page for how to
utilize that functionality:
http://nouveau.freedesktop.org/wiki/Optimus/

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

[bugzilla-daemon]

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

--- Comment #5 from Aneroid <aneroid@inbox.ru> ---
Yes, I try to do that.

xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x7e cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 4 outputs: 4 associated providers: 0 name:radeon
Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 6 outputs: 1 associated providers: 0 name:radeon

xrandr --setprovideroffloadsink 0x7e 0x46

And it ruined my xorg completely. X fall out in to the shell without any
errors.

I could switch between graphics card on flgrx driver with "aticonfig --px-dgpu"
and "aticonfig --px-igpu". It worked well.
But now, it seems that I stuck in low power graphics mode and I can't switch to
my power card. '

glxinfo always show me AMD ARUBA chip:

glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on AMD ARUBA (DRM 2.43.0, LLVM 3.7.0)

DRI_PRIME=1 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on AMD ARUBA (DRM 2.43.0, LLVM 3.7.0)

DRI_PRIME=0 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on AMD ARUBA (DRM 2.43.0, LLVM 3.7.0)

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

[bugzilla-daemon]

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

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Aneroid from comment #5)
> Yes, I try to do that.
> 
> xrandr --listproviders
> Providers: number : 2
> Provider 0: id: 0x7e cap: 0xf, Source Output, Sink Output, Source Offload,
> Sink Offload crtcs: 4 outputs: 4 associated providers: 0 name:radeon
> Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload,
> Sink Offload crtcs: 6 outputs: 1 associated providers: 0 name:radeon
> 
> xrandr --setprovideroffloadsink 0x7e 0x46

You've got the arguments reversed; the first is the offload device, the second
is the display device.  Try:

xrandr --setprovideroffloadsink 0x46 0x7e

> 
> And it ruined my xorg completely. X fall out in to the shell without any
> errors.

Can you attach your dmesg output and xorg log when you do that?

Does adding amdgpu.runpm=0 to the kernel command line in grub help?

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

[bugzilla-daemon]

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

--- Comment #7 from Aneroid <aneroid@inbox.ru> ---
(In reply to Alex Deucher from comment #6)
> 
> You've got the arguments reversed; the first is the offload device, the
> second is the display device.  Try:
> 
> xrandr --setprovideroffloadsink 0x46 0x7e

Ok.

[an@GX60 ~]$ xrandr --setprovideroffloadsink 0x46 0x7e
[an@GX60 ~]$ DRI_PRIME=0 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on AMD ARUBA (DRM 2.43.0, LLVM 3.7.0)
[an@GX60 ~]$ DRI_PRIME=1 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Gallium 0.4 on AMD ARUBA (DRM 2.43.0, LLVM 3.7.0)

But in that case nothing happend at all.

> > 
> > And it ruined my xorg completely. X fall out in to the shell without any
> > errors.
> 
> Can you attach your dmesg output and xorg log when you do that?
> 
> Does adding amdgpu.runpm=0 to the kernel command line in grub help?

This line does not change anything either.

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

[bugzilla-daemon]

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

--- Comment #8 from Aneroid <aneroid@inbox.ru> ---
Created attachment 191621
  --> https://bugzilla.kernel.org/attachment.cgi?id=191621&action=edit
dmesg after Xorg fall

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

[bugzilla-daemon]

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

--- Comment #9 from Aneroid <aneroid@inbox.ru> ---
Created attachment 191631
  --> https://bugzilla.kernel.org/attachment.cgi?id=191631&action=edit
Xorg.log

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

[bugzilla-daemon]

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

--- Comment #10 from Aneroid <aneroid@inbox.ru> ---
Created attachment 191771
  --> https://bugzilla.kernel.org/attachment.cgi?id=191771&action=edit
Kernel crash log

Very strange things happend.
Kernel crash on every reboot now.

It looks like kernel switch on pitcairin card, but can't boot from it.

I remove any kernel options.

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

[bugzilla-daemon]

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

--- Comment #11 from Aneroid <aneroid@inbox.ru> ---
May be the root of that problem is that Radeon HD 8970M is not a Pitcairn card
?

It is a Neptune XT, some kind of mobile version:
http://www.techpowerup.com/gpudb/1966/radeon-hd-8970m.html

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

[bugzilla-daemon]

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

--- Comment #12 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Aneroid from comment #11)
> May be the root of that problem is that Radeon HD 8970M is not a Pitcairn
> card ?
> 
> It is a Neptune XT, some kind of mobile version:
> http://www.techpowerup.com/gpudb/1966/radeon-hd-8970m.html

Neptune is the just the code name for mobile Pitcairn chips.

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

[bugzilla-daemon]

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

--- Comment #13 from Aneroid <aneroid@inbox.ru> ---
Ok.

But this strange error: "radeon 0000:01:00.0: VCE init error (-22)."
What does it mean ?

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

[bugzilla-daemon]

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

--- Comment #14 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Aneroid from comment #13)
> Ok.
> 
> But this strange error: "radeon 0000:01:00.0: VCE init error (-22)."
> What does it mean ?

The video encoding engine failed to initialize.  This is a known issue on
certain SI parts, but is harmless unless you need to use the encoding engine.

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