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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BXT-P/ APL] xrandr shows DP panel as disconnect after resume from S3"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93915">93915</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BXT-P/ APL] xrandr shows DP panel as disconnect after resume from S3
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>humberto.i.perez.rodriguez@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=121373" name="attach_121373" title="dmesg.log">attachment 121373</a> <a href="attachment.cgi?id=121373&action=edit" title="dmesg.log">[details]</a></span>
dmesg.log
System environment
---------------------------
Panel used as 4K : Asus 28" LED-Lit 4K monitor-PB287Q
BXT-P : CPU QDF QKG2
KSC : 1.06
BIOS : APLK_IFWI_X64_R_2016_02_4_00 (119.10)
Cores : 4
Microcode Revision : 9002100A
Processor : Intel (R) Genuinen processor
Speed : 1200 Mhz
BXT SOC : A0
GOP : 10.0.1022
CPU Flavor : APL RVP 1A (01)
FAB ID : FAB1
BOAD ID : APL RVP 1A (01)
Total Memory : 8GB
Software configuration
-----------------------------
OS : Ubuntu 15.10 x86_64
kernel : drm-intel-nightly
commit 8fe9e785ae04fa7c37f7935cff12d62e38054b60
Author: Tvrtko Ursulin <<a href="mailto:tvrtko.ursulin@intel.com">tvrtko.ursulin@intel.com</a>>
Date: Thu Jan 21 11:03:06 2016 +0000
drm-intel-nightly: 2016y-01m-21d-11h-02m-42s UTC integration manifest
--> Component : drm
url : <a href="http://cgit.freedesktop.org/mesa/drm">http://cgit.freedesktop.org/mesa/drm</a>
tag : libdrm-2.4.66-2-ge342c0f
commit : e342c0f
author : Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
age : 6 weeks ago
--> Component : mesa
url : <a href="http://cgit.freedesktop.org/mesa/mesa">http://cgit.freedesktop.org/mesa/mesa</a>
tag : mesa-11.0.8
commit : 261daab
author : Emil Velikov <<a href="mailto:emil.velikov@collabora.com">emil.velikov@collabora.com</a>>
age : 5 weeks ago
--> Component : xf86-video-intel
url : <a href="http://cgit.freedesktop.org/xorg/driver/xf86-video-intel">http://cgit.freedesktop.org/xorg/driver/xf86-video-intel</a>
tag : 2.99.917
commit : baec802
author : Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
age : 1 year 1 month ago
--> Component : libva
url : <a href="http://cgit.freedesktop.org/libva/">http://cgit.freedesktop.org/libva/</a>
tag : libva-1.6.1-34-gcb418f6
commit : cb418f6
author : Lim Siew Hoon <<a href="mailto:siew.hoon.lim@intel.com">siew.hoon.lim@intel.com</a>>
age : 3 weeks ago
--> Component : vaapi (intel-driver)
url : <a href="http://cgit.freedesktop.org/vaapi/intel-driver">http://cgit.freedesktop.org/vaapi/intel-driver</a>
tag : 1.6.1-88-g2110b3a
commit : 2110b3a
author : peng.chen <<a href="mailto:peng.c.chen@intel.com">peng.c.chen@intel.com</a>>
age : 13 days ago
--> Component : cairo
url : <a href="http://cgit.freedesktop.org/cairo">http://cgit.freedesktop.org/cairo</a>
tag : 1.15.2
commit : db8a7f1
author : Bryce Harrington <<a href="mailto:bryce@osg.samsung.com">bryce@osg.samsung.com</a>>
age : 7 weeks ago
--> Component : xserver
url : <a href="http://cgit.freedesktop.org/xorg/xserver">http://cgit.freedesktop.org/xorg/xserver</a>
tag : xorg-server-1.18.0
commit : 43fb888
author : Adam Jackson <<a href="mailto:ajax@redhat.com">ajax@redhat.com</a>>
age : 3 months ago
Regresion
--------------
not sure
Bug detailed description
-------------------------------
After resume from S3 state with DP connected, xrandr shows DP as disconnected
instead connected and the image on DP disappears
Steps to reproduce
-------------------------
1-Connect DP panel to BXT-P system and type xrandr to see how it recognizes DP
panel
2-Go to S3 state with the command :
# echo mem > /sys/power/state
3-Wait for 30 seconds
4-Resume from S3 state by keyboard or power bottom
5-type xrandr
The failure is seen in step 5
Expected result
--------------------
After resume from S3 DP panel will shows in xrandr and the image as well
Actual results
-----------------
After resume from S3 state with DP connected, xrandr shows DP as disconnected
instead connected and the image on DP disappears
Additional info
------------------
grub options :
acpi_enforce_resources=lax initcall_debug maxcpus=1 no_console_suspend
log_buf_len=4M ignore_loglevel i915.enable_rc6=0 drm.debug=0x1e
Bios options :
1- Device Manager > System Setup > CPU Configuration > CPU Power Management >
Max Package C State "S0ix default" to "C0"
2- Device Manager > System Setup > CPU Configuration > CPU Power Management >
Max Core C State "Fused value default" to "Core C6"
Attachment
---------------
dmesg.log
xrandr.log</pre>
</div>
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