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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #14 from cprigent <christophe.prigent at intel.com> ---
Created attachment 127427
  --> https://bugs.freedesktop.org/attachment.cgi?id=127427&action=edit
BDW__lsusb

IGT output shows an rtcwake error:
(kms_frontbuffer_tracking:1651) igt-aux-CRITICAL: This failure means that
something is wrong with the rtcwake tool or how your distro is set up. This is
not a i915.ko or i-g-t bug.

rtcwake returns a write error after several tries:
root at BDW101:/home/user# rtcwake -m mem -s 30
rtcwake: wakeup from "mem" using /dev/rtc0 at Thu Oct 20 11:51:10 2016
root at BDW101:/home/user# rtcwake -m mem -s 30
rtcwake: wakeup from "mem" using /dev/rtc0 at Thu Oct 20 11:52:54 2016
root at BDW101:/home/user# rtcwake -m mem -s 30
rtcwake: wakeup from "mem" using /dev/rtc0 at Thu Oct 20 11:53:45 2016
rtcwake: write error

Could it be due to USB?
[   22.361971] usb 2-7: device descriptor read/64, error -110
[   22.589896] usb 2-7: new full-speed USB device number 3 using xhci_hcd
[   24.098323] random: crng init done
[   27.738320] usb 2-7: device descriptor read/64, error -110
[   43.355423] usb 2-7: device descriptor read/64, error -110
[   43.583349] usb 2-7: new full-speed USB device number 4 using xhci_hcd
[   48.611744] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device
command
[   48.819846] usb 2-7: Device not responding to setup address.
[   49.027725] usb 2-7: device not accepting address 4, error -71
[   49.147738] usb 2-7: new full-speed USB device number 5 using xhci_hcd
[   54.244174] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device
command
[   54.452237] usb 2-7: Device not responding to setup address.
[   54.660115] usb 2-7: device not accepting address 5, error -71
[   54.660163] usb usb2-port7: unable to enumerate USB device


Platform BDW: NUC5i7RYB
CPU: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz (Family 6, Model 61, Stepping 4)
Motherboard version: H73774-102
GPU: Intel® Iris™ Graphics 6100 - Intel Corporation Broadwell-U Integrated
Graphics (rev 09)
Memory: two 4GB card Kingston 99U5469-045.A00LF
SSD: INTEL SSDSC2KW24

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
Setup:
Kernel: 4.9.0-rc1 5b633f4 from http://cgit.freedesktop.org/drm-intel/
  commit 5b633f423e27af3a7f30d303e243f5a2e82917ae
  Author: Chris Wilson <chris at chris-wilson.co.uk>
  Date:   Tue Oct 18 13:27:24 2016 +0000
  drm-intel-nightly: 2016y-10m-18d-13h-24m-11s UTC integration manifest
libdrm-2.4.71 a44c9c3 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-12.0.0 8b06176 from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
xorg-server-1.18.99.901-80 5dcb066 from
git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.917-713 eb01cc5 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-38 3b7e499 from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-138 fc7bd06 from
git://git.freedesktop.org/git/vaapi/intel-driver
IGT: 1.16 27d3070 from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

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