[Bug 94932] [APL] igt drv_suspend fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94932

--- Comment #12 from Imre Deak <imre.deak at intel.com> ---
(In reply to Luis Botello from comment #11)
> This issue is not seen on an APL with the following configuration:
> 
> Hardware Configuration
> ===========================================
> Platform: BXT - P (APL)
> CPU : CPU family   Other
> CPU information:   06/5c
> Motherboard model  Apollo Lake
> Motherboard type    NOTEBOOK Hand Held
> Motherboard manufacturer Intel Corp.
> 
> Software Configuration
> ================================================
> Linux distribution: Ubuntu 15.10 64 bits
> Kernel: drm-intel-nightly 4.6.0-rc3_d9131d6 from
> http://cgit.freedesktop.org/drm-intel/
> commit d9131d62d18ba94fb3ca019f1156c22b5f4ce23c
> Author: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Date:   Fri Apr 15 14:54:26 2016 +0100
> drm-intel-nightly: 2016y-04m-15d-13h-53m-44s UTC integration manifestdrm:
> tag libdrm-2.4.66-33-gf884af9
>       libdrm 2.4.67-25 cc9a53f from git://git.freedesktop.org/git/mesa/drm
> mesa 11.1.2 7bcd827 from git://git.freedesktop.org/git/mesa/mesa
> cairo 1.15.2 db8a7f1 from git://git.freedesktop.org/git/cairo
> xorg/xserver 1.18.0-274 8437955 from
> git://git.freedesktop.org/git/xorg/xserver
> xf86-video-intel 2.99.917-634 81029be from
> git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
> vaapi/libva 1.7.0-1 2339d10 from git://git.freedesktop.org/git/vaapi/libva
> vaapi/intel-driver 1.7.0-8 2c1bec0 from
> git://git.freedesktop.org/git/vaapi/intel-driver
> intel-gpu-tool 1.14 7bd2ac6 from
> http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git
> rendercheck master 44032a7 from
> http://anongit.freedesktop.org/git/xorg/app/rendercheck.git
> 
> It seems like the issue was induced because of a miss-configuration in the
> system date and the HW date, once they are synced up, this test runs fine. I
> just want to let you know that the system was not able to auto-resume from
> S4, it could be a HW limitation, but when i resumed manually with a
> keystroke it worked fine.

Ok. The reason for this working now could be that a few PM related fixes got
merged since which for me fixed suspend/resume with multiple display outputs.

One reason why autoresume doesn't work is that suspend-to-disk on BXT takes a
long time atm, due to broken system clock support. drv_suspend schedules the
autoresume 30 sec in the future, so if hibernation takes longer than that then
you have to resume manually. That's a separate issue though, so if the test
passes otherwise I suggest closing this bug.

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