[Bug 71908] [BYT Bisected]X will shown garbage after resume from S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71908

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #22 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #21)
> (In reply to comment #20)
> > I cannot reproduce this bug now.
> > 
> > Operation steps:
> > ----------------
> > 1. Input xinit & in console
> > 2. Try to do some operation on X
> > 3. Press Ctrl+ Alt + F1 Switch to console
> > 4. echo mem > /sys/power/state
> > 5. Press any key to resume 
> > 6. Press Ctrl+ Alt + F2 switch to X, the X will doesn't show garbage.
> > 
> > The operation step which different with before is only step 2. After do the
> > operations above, I cannot reproduce this bug anymore.
> 
> Two questions:
> - Why exactly do you switch to the console to do the suspend test? This
> should also work from within X, and now that we have switchless
> suspend/resume it's important to test this.
Switch to console isn't necessary to run suspend/resume test, but run
suspend/resume test from X, this bug unable to reproduce.
> - To clarify: You only see the garbage if you leave out 2. but as soon as
> you do something in X the corruption doesn't show up? Can you please tell
> what exactly you're doing in 2 (moving mouse, typing in xterm, starting
> another application, ... please be precise)?
In step2, I only typed command ‘ cd
/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tools/’ in xterm.

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