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[Bug 1009674] WARNING: CPU: 0 PID: 123 at ../drivers/gpu/drm/i915/intel_runtime_pm.c:1455 intel_display_power_put+0x13a/0x170 [i915]()
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 20 Jan 2017 09:33:18 +0000
  • Message-id: <>

Takashi Iwai <tiwai@xxxxxxxx> changed:

What |Removed |Added
Flags| |needinfo?(matwey.kornilov@g
| |

--- Comment #35 from Takashi Iwai <tiwai@xxxxxxxx> ---
I don't see a clear reason why it triggers a panic yet, but I think I found the
missing piece in the previous patch. It's accessing the pp_ctrl_reg that isn't
initialized for VLV/CHV but only for BXT.

Below is the revised patch. Could you give it a try? I'll update the kernel
package in my repo, too.

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