[Bug 104275] Stoney Ridge laptop display goes blank after HDMI gets plugged/unplugged in extended mode.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 25 08:35:13 UTC 2017


--- Comment #11 from Alex_Zhang1 at Dell.com ---
(In reply to Harry Wentland from comment #9)
> Created attachment 136321 [details] [review]
> DC scatter gather patch
> You'll need this DC patch.

Hi Harry,
  As patch below,

+       /*
+        * TODO debug why this doesn't work on Raven
+        */
+       if (adev->flags & AMD_IS_APU &&
+           adev->asic_type >= CHIP_CARRIZO &&
+           adev->asic_type < CHIP_RAVEN)
+               init_data.flags.gpu_vm_support = true;

  Seems this is just for debug, if I am wrong, please correct me. Do the flags
gpu_vm_support has support on 4.13 kernel? Could you please help to confirm if
this patch can be used on 4.13 kernel?


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