[Bug 99173] Xorg waits for long time(200ms+) to invoke VT_RELDISP

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99173

yann <yann.argotti at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/Intel                   |Driver/intel
      i915 platform|                            |BDW
            Product|DRI                         |xorg
           Assignee|intel-gfx-bugs at lists.freede |chris at chris-wilson.co.uk
                   |sktop.org                   |

--- Comment #3 from yann <yann.argotti at intel.com> ---
(In reply to yu.c.chen at intel.com from comment #0)
> Hi all,
> Currently I'm evaluating the suspend/resume speed on my laptop,
> and it was found the switching from Graphic Mode to text mode vt has taken
> more
> than 200ms, and according to the ftrace result, after Xorg received
> the signal from kernel, it waits for 200ms+ until finally issue the
> ioctl VT_RELDISP, which makes the kernel blocking at this flag to be
> set.
> As people replied to me in maillist: Because it's been asked to set the
> hardware back to text mode, which requires reprogramming the GPU, which
> takes time.
> 
> The GPU is：
> 00:02.0 VGA compatible controller: Intel Corporation Broadwell-U
> Integrated Graphics (rev 09) (prog-if 00 [VGA controller])
>     Subsystem: Apple Inc. Broadwell-U Integrated Graphics
> driver in use: i915
> Xorg version:
> X.Org X Server 1.18.3
> Release Date: 2016-04-04
> 
> Any idea how to track this ? thanks very much.
> 
> More info please refer to:
> https://bugzilla.kernel.org/show_bug.cgi?id=186211

Reassign to Xorg product based on the description

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