Bug 94558 - [BXT-P] xrandr shows HDMI as DP instead HDMI output
Summary: [BXT-P] xrandr shows HDMI as DP instead HDMI output
Status: CLOSED NOTABUG
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: high normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-03-15 18:37 UTC by Humberto Israel Perez Rodriguez
Modified: 2017-07-24 22:42 UTC (History)
3 users (show)

See Also:
i915 platform: BXT
i915 features: display/HDMI, display/LSPCON


Attachments
dmesg.log (787.31 KB, text/plain)
2016-03-15 18:37 UTC, Humberto Israel Perez Rodriguez
no flags Details
xrandr output (1.38 KB, text/plain)
2016-03-15 18:38 UTC, Humberto Israel Perez Rodriguez
no flags Details

Description Humberto Israel Perez Rodriguez 2016-03-15 18:37:22 UTC
Bug detail description
======================
HDMI is recognized ad DP in xrandr

 --- Software information ---	
Kernel version	4.5.0-rc5-drm-intel-testing-ww10-commit-a27657a+
Linux distribution	Ubuntu 15.10
Architecture	64-bit
Mesa version	11.1.2 (git-7bcd827
xf86-video-intel version	2.99.917
Xorg-Xserver version	1.18.1
DRM version	2.4.67
libva version	
Cairo version	1.15.2
Kernel driver in use	i915
Bios revision	126.51
KSC revision	1.6
	
 --- Hardware information ---	
Platform	BXT-P
Motherboard model	Broxton P
Motherboard type	NOTEBOOK Hand Held
Motherboard manufacturer	Intel Corp.
CPU family	Other
CPU information	06/5c
GPU Card	Intel Corporation Device 5a84 (rev 03) (prog-if 00 [VGA controller])





Steps to reproduce
====================
1-Boot the DUT with HDMI connected
2-Open a terminal and type xrandr

Actual result
===============
HDMI is recognized ad DP in xrandr

Expected result
===============
HDMI must be recognized as HDMI port instead DP port in xrandr

Attachments
===========
dmesg.log
xrandr_output
Comment 1 Humberto Israel Perez Rodriguez 2016-03-15 18:37:47 UTC
Created attachment 122330 [details]
dmesg.log
Comment 2 Humberto Israel Perez Rodriguez 2016-03-15 18:38:41 UTC
Created attachment 122331 [details]
xrandr output
Comment 3 Jani Nikula 2016-03-15 19:53:58 UTC
LSPCON? Cc: Jim.
Comment 4 Jim Bride 2016-03-31 17:30:30 UTC
Most likely this is LSPCON again based off of what I'm seeing from the VBT in the dmesg output.  CC: Paulo, who is slated to upstream LSPCON patches once VPG posts them.
Comment 5 yann 2016-04-29 11:06:07 UTC
Increasing priority due to current platform experience impact
Comment 6 Humberto Israel Perez Rodriguez 2016-06-15 16:55:04 UTC
then issue still occurs with the following configuration :

kernel : 4.6.1 from http://www.kernel.org/
Graphic stack
--> Component : drm 
         tag : libdrm-2.4.68 
         commit : fc09c5a 
--> Component : mesa 
         tag : mesa-11.2.2 
         commit : 3a9f628 
--> Component : xf86-video-intel 
         tag : 2.99.917 
         commit : baec802 
--> Component : libva 
         tag : libva-1.7.1.pre1 
         commit : 453876f 
--> Component : vaapi (intel-driver) 
         tag : 1.7.1.pre1 
         commit : 2975480 
--> Component : cairo 
         tag : 1.15.2 
         commit : db8a7f1 
--> Component : xserver 
         tag : xorg-server-1.18.3 
         commit : 9454cd5 
--> Component : intel-gpu-tools 
         tag : intel-gpu-tools-1.15 
         commit : 3ce58b6 
Software information
===============================================
Linux distribution                  : Ubuntu 16.04
Architecture                        : 64-bit
Bios revision                       : 138.25
KSC revision                        : 1.12
DMC revision                        : 1.07

Hardware information
===============================================
Platform                            : BXT-P
Motherboard model                   : Broxton P
Motherboard type                    : NOTEBOOK Hand Held
Motherboard manufacturer            : Intel Corp.
CPU family                          : B1
CPU information                     : 06/5c
GPU Card                            : Intel Corporation Device 5a84 (rev 0a) (prog-if 00 [VGA controller])
Comment 7 Imre Deak 2016-06-15 18:27:07 UTC
This is expected. There are two ways to connect HDMI to the APL RVPs: via the DDI1 DP++ plug with an DP->HDMI dongle, or via the DDI0 HDMI plug which is connected to the SoC through the LSPCON converter. You seem to be using the second scenario with LSPCON being in the protocol converter mode (configured as such by BIOS). In that case the connection will show up as a DP connector.

I'm suggesting closing this based on the above.
Comment 8 Jani Nikula 2016-06-16 06:52:14 UTC
(In reply to Imre Deak from comment #7)
> This is expected. There are two ways to connect HDMI to the APL RVPs: via
> the DDI1 DP++ plug with an DP->HDMI dongle, or via the DDI0 HDMI plug which
> is connected to the SoC through the LSPCON converter. You seem to be using
> the second scenario with LSPCON being in the protocol converter mode
> (configured as such by BIOS). In that case the connection will show up as a
> DP connector.
> 
> I'm suggesting closing this based on the above.

Agreed. There may be any number of *other* problems with LSPCON, and other bugs have already been filed on them, but this will not be fixed. (Can't be fixed in any sane way, really.)


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