Bug 88963 - [BSW] DP screen is black when running testdisplay on some modes
Summary: [BSW] DP screen is black when running testdisplay on some modes
Status: CLOSED WORKSFORME
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: low major
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
: 84303 (view as bug list)
Depends on:
Blocks:
 
Reported: 2015-02-04 07:52 UTC by Jeff Zheng
Modified: 2017-02-24 14:18 UTC (History)
4 users (show)

See Also:
i915 platform: BSW/CHT
i915 features: display/DP


Attachments
dmesg log (1.12 MB, text/plain)
2015-02-04 07:52 UTC, Jeff Zheng
no flags Details

Description Jeff Zheng 2015-02-04 07:52:41 UTC
Created attachment 113149 [details]
dmesg log

==System Environment==
--------------------------
BIOS: V55 with 'dynamic memory self refresh' disabled
DP monitor: ASUS PA238Q

Regression: No. I don't find a working version (tried on -nightly 2014-12-06 commit bfdd01aa1825aa0068f9236b21362b550f6d630f and this issue still exists)

Non-working platforms: BSW

==kernel==
--------------------------
-testing: 2015_01_30 commit 4d3645e40c7039f60b6db0ce9c2251ac34faef81 (fails)
-fixes: 2015_02_04 commit 6b96d705f3cf435b0b8835b12c9742513c77fed6 (fails)


==Bug detailed description==
-----------------------------
Running "testdisplay -a", DP screen is black on following modes 
[2]  1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
[3]  1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176
[5]  1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250

==Reproduce steps==
---------------------------- 
1. Run "testdisplay -a"
2. Check output of DP
3. Same issue if running "testdisplay -d/-t"
Comment 1 Jeff Zheng 2015-03-05 08:39:32 UTC
Tried on drm-intel-testing-2015-02-27 + attachment 113995 [details] [review] and this issue still exists.
Comment 2 Jeff Zheng 2015-03-17 06:33:01 UTC
*** Bug 84303 has been marked as a duplicate of this bug. ***
Comment 3 Jeff Zheng 2015-03-17 06:33:57 UTC
Still exists on drm-intel-testing-2015-03-13
Comment 4 Jeff Zheng 2015-03-31 03:08:28 UTC
exists on drm-intel-testing-2015-03-27
Comment 5 Jeff Zheng 2015-04-28 02:01:21 UTC
Exists on drm-intel-testing-2015-04-23 (ASUS PA238Q)
Comment 6 Jeff Zheng 2015-05-26 06:37:31 UTC
exists on drm-intel-testing-2015-05-22
Comment 7 Dhinakaran Pandiyan 2015-08-24 22:52:05 UTC
I am seeing the same issue with resolution > 1920x1080. I provide the logs and help with debugging if anyone taking this up.
Comment 8 cprigent 2015-10-01 15:56:25 UTC
Bug scrub: Assigned to Rami to give details about last result
Comment 9 cprigent 2015-10-01 15:58:23 UTC
Looks related to https://bugs.freedesktop.org/show_bug.cgi?id=83866
Comment 10 Rami 2015-10-02 09:51:37 UTC
reproduced on BSW with 4.3.0-rc2-drm-intel-nightly

Hardware:
=========

Platform: Braswell M 
CPU : Intel(R) Celeron N3060 1.60GHz @ 1.6 GHz (family: 6, model: 76 stepping: 4)
SoC : BSW D0
QDF : K6XC
CRB : BRASWELL RVP Fab2
Mandatory Reworks : All 
Feature Reworks: F28, F32,F33 & F37
Optional reworks : O-01a


Software :
Linux distribution: Ubuntu 14.04 LTS 64 bits 
BIOS : BRAS.X64.B084.R00.1508310642
TXE FW : 2.0.0.2073
Ksc : 1.08

kernel 4.3.0-rc2-drm-intel-nightly+
commit 794e1cdfb84be003dbd287c69501c98ec280a89b
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Mon Sep 28 17:28:29 2015 +0300

    drm-intel-nightly: 2015y-09m-28d-14h-28m-11s UTC integration manifest

cairo: (HEAD, tag: 1.14.2) 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d from git://git.freedesktop.org/git/cairo
drm: (HEAD, tag: libdrm-2.4.64, tag: 2.4.64) ab2fadabde3829b1ec56bd4756165dd9bd281488 from git://git.freedesktop.org/git/mesa/drm
intel-driver: (HEAD, origin/master, origin/HEAD, master) 2a72f99d24714f2a58f400ef63b913d4cf9080b3 from git://git.freedesktop.org/git/vaapi/intel-driver
libva: (HEAD, tag: libva-1.6.1, origin/v1.6-branch) 613eb962b45fbbd1526d751e88e0d8897af6c0e0 from git://git.freedesktop.org/git/vaapi/libva
mesa: (HEAD, tag: mesa-10.6.7) 32efdc87cbf89cfe08ad9571cd756e27c803caa8 from git://git.freedesktop.org/git/mesa/mesa
xf86-video-intel: (HEAD, origin/master, origin/HEAD, master) f0fd4d500de03c30c7ce19915f85acadd1ca4e5d from git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
xserver: (HEAD, tag: xorg-server-1.17.2) 2123f7682d522619f101b05fb75efa75dabbe371 from git://git.freedesktop.org/git/xorg/xserver

intel-gpu-tools: (HEAD, tag: intel-gpu-tools-1.12) 1f9e0550455be4b219954a026407dd23ec21b299 from git://git.freedesktop.org/git/xorg/app/intel-gpu-tools
Comment 11 cprigent 2015-11-17 17:34:40 UTC
Bug scrub
Priority set to low.

Potential duplicate: #83866
Comment 12 Mika Kahola 2015-11-25 11:49:57 UTC
Please try if this patch would be helpful 

https://patchwork.freedesktop.org/patch/66137/
Comment 13 Rami 2016-03-25 14:52:30 UTC
Tested with patch, Bug still exist on BSW with last setup :

Platform: Braswell M
CPU : Intel(R) Celeron N3060 1.60GHz @ 1.6 GHz (family: 6, model: 76 stepping: 4)
SoC : BSW D0
QDF : K6XC
CRB : BRASWELL RVP Fab2
Mandatory Reworks : All
Feature Reworks: F28,F32,F33, F35 & F37
Optional reworks : O-02, O-03
 
Software
Linux OS: Ubuntu 15.10 64 bits
BIOS : BRAS.X64.B088.R00.1510270350
TXE FW : 2.0.0.2093
Ksc : 1.08
Kernel drm-intel-nightly: 2016y-03m-24d-14h-34m-29s UTC integration manifest
commit f5d413cccefa1f93d64c34f357151d42add63a84
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Thu Mar 24 14:35:16 2016 +0000
 
drm: libdrm-2.4.67-5 ea07de9 from git://anongit.freedesktop.org/mesa/drm
mesa: tag mesa-11.1.2 7bcd827 from git://anongit.freedesktop.org/mesa/mesa
cairo: tag 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
waffle: master bb29b2a from git://github.com/waffle-gl/waffle
xorg-server-macros: tag: util-macros-1.19.0-2 d7acec2 from git://git.freedesktop.org/git/xorg/util/macros
xserver: tag: xorg-server-1.18.1 23e60f9 from git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel: tag 2.99.917-560 d167280 from git://anongit.freedesktop.org/xorg/driver/xf86-video-intel
libva: tag libva-1.7.0.pre1 35f1447 from git://git.freedesktop.org/git/vaapi/libva
vaapi-intel-driver: tag 1.7.0.pre1 ab8e4e3 from git://anongit.freedesktop.org/vaapi/intel-driver
IGT 1.14 364d378 from http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git
Comment 14 Dhinakaran Pandiyan 2016-06-22 21:38:06 UTC
Issue still exists when setting resolution to 1920x1080i via xrandr. 
dmesg shows 1920x1080i as one of the probed modes and DP link training was successful, but the display does not light up.
Comment 15 Jani Nikula 2016-06-23 08:48:15 UTC
(In reply to Dhinakaran Pandiyan from comment #14)
> Issue still exists when setting resolution to 1920x1080i via xrandr. 
> dmesg shows 1920x1080i as one of the probed modes and DP link training was
> successful, but the display does not light up.

Again, please attach fresh dmesg when you re-test, and also indicate what hardware the testing was done on.
Comment 16 Luis Botello 2017-02-07 16:28:44 UTC
Issue is not seen any more with the latest configuration:

============================================
 Software information
============================================
Kernel version                  : 4.10.0-rc3-drm-tip-commit-af72342+
Linux distribution              : Ubuntu 16.10
Architecture                    : 64-bit
Xorg-Xserver version            : 1.18.4
DRM version                     : 2.4.74
Cairo version                   : 1.15.5
Intel GPU Tools version         : Tag [intel-gpu-tools-1.17-115-g12e34d8] / Commit [12e34d8]
Kernel driver in use            : i915
Bios revision                   : 0.33
KSC revision                    : 0.16


 Hardware information
============================================
Platform                        : BSW
Motherboard model               : 10G9000NUS
Motherboard type                : BRASWELL Desktop
Motherboard manufacturer        : LENOVO
CPU family                      : Pentium
CPU information                 : Intel(R) Pentium(R) CPU  N3700  @ 1.60GHz
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Comment 17 Luis Botello 2017-02-07 17:31:55 UTC
Jeff Zheng could you please re-test with the latest drm-tip configuration?
Comment 18 Gordon Jin 2017-02-24 13:04:01 UTC
Jeff Zheng is not responsible for this now. Since Luis can't reproduce it, I suggest closing this.
Comment 19 yann 2017-02-24 14:18:05 UTC
(In reply to Gordon Jin from comment #18)
> Jeff Zheng is not responsible for this now. Since Luis can't reproduce it, I
> suggest closing this.

Thanks Gordon.


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