[Bug 92324] [Intel-gfx] [PATCH] fixup! drm/i915/skl: Eliminate usage of pipe_wm_parameters from SKL-style WM (v3) [regression][bisected]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92324

--- Comment #7 from Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> ---
the original issue in this bug is no longer visible or reproducible, i tried
with the following configuration :

 --- Hardware information ---
Motherboard model             : Skylake Client platform
Motherboard type              : Skylake Y LPDDR3 RVP3 Laptop
Motherboard manufacturer      : Intel Corporation
CPU information               : Intel(R) Core(TM) m5-6Y57 CPU @ 1.10GHz
GPU Card : Intel Corporation Sky Lake Integrated Graphics (rev 07) (prog-if 00
[VGA controller])


 --- Software information ---

Linux distribution: Ubuntu 15.10 LTS 64 bits
Bios : SKLSE2R1.R00.B104.B01.1511110114)
xorg-server-1.18.0 from http://cgit.freedesktop.org/xorg/xserver
libdrm-2.4.65 from http://cgit.freedesktop.org/mesa/drm/
xf86-video-intel 2.99.917 from
http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/
mesa-11.0.4 from http://cgit.freedesktop.org/mesa/mesa/
libva-1.6.2.pre1 from http://cgit.freedesktop.org/libva/
vaapi-intel-driver 1.6.2.pre1 from
http://cgit.freedesktop.org/vaapi/intel-driver
cairo 1.14.4 from http://cgit.freedesktop.org/cairo
Rendercheck 1.5 from http://cgit.freedesktop.org/xorg/app/rendercheck
DMC 1.23 and GUC 4.3 firmware from
https://01.org/linuxgraphics/intel-linux-graphics-firmwares
KSC  : 1.15


 --- Kernel information ---
Kernel: drm-intel-nightly: 2015y-12m-10d-19h-15m-29s from :
git://anongit.freedesktop.org/drm-intel

commit be04e4e814b295b6941f5aed12835f6595c41c18
Author: Rodrigo Vivi <rodrigo.vivi at intel.com>
Date:   Thu Dec 10 11:15:40 2015 -0800



This are the panels that was used in order to reproduce this bug :

-eDP panel with native resolution 3200x1800 @60.00
Resolution :  1920x1080     @60.00  = i did not see any flickers on eDP panel 
Resolution :  1368x768      @60.00  = i did not see any flickers on eDP panel 
Resolution :  1368x768      @59.00  = i did not see any flickers on eDP panel 

-eDP panel resolution 1920x1080 @60.00
Resolution : 1920x1080     @60.00 = i did not see any flickers on eDP panel 

-eDP panel with native resolution 1366x768 @60.00
Resolution : 1366x768      @60.00 = i did not see any flickers on eDP panel 
Resolution : 1366x768      @59.00 = i did not see any flickers on eDP panel 


Note : as comment Radhakrishna Sripada i too saw flickering when i did
hotplug/hotunplug HDMI/DP on SKL-Y in eDP panel, irrespective of the edp
panel's resolution

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