[Bug 106271] 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

--- Comment #6 from Alex Deucher <alexdeucher at 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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