[Bug 76546] [BDW]Error(call trace) appear when resume from hibernation on Broadwell

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76546

--- Comment #9 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #8)
> (In reply to comment #7)
> > Can you please try to reproduce with i915 module not loaded?
> 
> Disable i915 module failed:
> 1. boot the kernel with parameter "i915.modeset=0"
> 2. lsmod still found i915 was loaded.
> 
> [root at x-bdw01 ~]# lsmod|grep i915
> i915                  723492  2
> video                  11899  1 i915
> button                  4261  1 i915
> drm_kms_helper         27762  1 i915
> drm                   208656  2 i915,drm_kms_helper
> 
> 3. Failed to remove module with commands below, and unable to find which
> module used i915 module.
> 
> [root at x-bdw01 ~]# rmmod i915
> rmmod: ERROR: Module i915 is in use
> [root at x-bdw01 ~]# modprobe -r i915
> modprobe: FATAL: Module i915 is in use.

Remove snd_hda_intel module the remove i915, the module is able to remove.

After remove i915 module, the device is able into S4.

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