[Bug 98290] [BDW] kms_frontbuffer_tracking fbc-suspend fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98290

--- Comment #17 from cprigent <christophe.prigent at intel.com> ---
Created attachment 128588
  --> https://bugs.freedesktop.org/attachment.cgi?id=128588&action=edit
BDW-NUC5i3RYB__kms_frontbuffer_tracking__fbc-suspend__loop__output

yes, the clock is accurate.
Tested in a loop using a BDW NUC5i3RYB with fresh setup, it is 50% reproduced.

USB controller also fails to suspend:
[  495.830966] calling  0000:00:14.0+ @ 163, parent: pci0000:00
[  495.830972] pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -16
[  495.830976] dpm_run_callback(): pci_pm_suspend+0x0/0x140 returns -16
[  495.830977] call 0000:00:14.0+ returned -16 after 9 usecs
[  495.830978] PM: Device 0000:00:14.0 failed to suspend async: error -16
[  495.896515] PM: Some devices failed to suspend, or early wake event detected

Platform BDW: NUC5i3RYB
CPU: Intel(R) Core(TM) i3-5010U CPU @ 2.10GHz (family 6, model 61, stepping 4)
Motherboard version: H41000-503
GPU: Intel® HD Graphics 5500 - Intel Corporation Broadwell-U Integrated
Graphics (rev 09)
Memory: two 4GB card Crucial CT51264BF160B.C16F
SSD: INTEL SSDSC2BW48 480 Go

Software
Bios: RYBDWi35.86A.0358.2016.0606.1423 from
https://downloadcenter.intel.com/downloads/eula/26081/BIOS-Update-RYBDWi35-86A-?httpDown=https%3A%2F%2Fdownloadmirror.intel.com%2F26081%2Feng%2FRY0358.bio
Linux distribution: Ubuntu 16.04 64 bits
Kernel: 4.9.0 86a2672 branch drm-tip from https://cgit.freedesktop.org/drm-tip
  commit 86a26727690faef9018c6585e0094e701e0e9b0c
  Author: Rodrigo Vivi <rodrigo.vivi at intel.com>
  Date:   Mon Dec 19 11:15:50 2016 -0800
  drm-tip: 2016y-12m-19d-19h-15m-10s UTC integration manifest
libdrm-2.4.74-17 a07cf7f from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-13.0.2 c9e993b from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.4 9fe6683 from git://anongit.freedesktop.org/cairo
xorg-server-1.19.0-31 b5dffbb from git://git.freedesktop.org/git/xorg/xserver
xf86-video-2.99.917-746 169c74f from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-44 598fb9e from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-199 4518d07 from
git://git.freedesktop.org/git/vaapi/intel-driver
intel-gpu-tools-1.17-53 38bffd9 from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

External screen: DELL U2311Hb

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