Bug 82900

Summary: [IVB/HSW/BYT-M bisected]Show "white screen" when running unigine-demos
Product: Mesa Reporter: zhoujian <jianx.zhou>
Component: Drivers/DRI/i965Assignee: Chris Forbes <chrisf>
Status: CLOSED DUPLICATE QA Contact: Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity: major    
Priority: high CC: eero.t.tamminen
Version: unspecified   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments: 1.png
1.png

Description zhoujian 2014-08-21 09:02:28 UTC 
Platform:IVB/HSW/BYT-M
Libdrm:(master)libdrm-2.4.56-8-gd9ce09de12131fa8c5ff2d7c2dbd6b61d8a5fd14
Mesa:(master)a1853eaea7fa5caf59b52567cc49f964ce5293ec
Xserver:(master)xorg-server-1.15.99.902-121-g2f5cf9ff9a0f713b7e0386
Xf86_video_intel:(master)2.99.914-60-gf5469681b620d9d6ccaf53e92ed31f931cb03b0d
Cairo:(master)932548ef25864958ef966ffe83e7c945c3ff3cd4
Libva:(master)acfcd5f0637a951d50c5112c7dfbd46f1d0dcdb3
Libva_intel_driver:(master)f3f49f2f0e6b3669d9b09341a11cf0b96e138674
Kernel:(drm-intel-nightly)49ceddc7b3b0e3f7eb21b9fb4c9b840cff630047

Bug detailed description:
----------------------------------------------
Show "white screen" when running unigine-demos on IVB/HSW/BYT-M,This issue both on gnome-session and Raw X,this issue doesn't exist on BDW.you can see 1.png.
It's Mesa regression,bisected the result show first bad commit is:
commit 4a3667993e8c3bace135791efbe2163a82bbfc56
Author:     Chris Forbes <chrisf@ijw.co.nz>
AuthorDate: Sun Aug 10 14:36:25 2014 +1200
Commit:     Chris Forbes <chrisf@ijw.co.nz>
CommitDate: Fri Aug 15 19:24:56 2014 +1200
    i965: Enable ARB_gpu_shader5 on Gen7

Reproduce steps:
---------------------------------------------
1. xinit&
2. export LD_LIBRARY_PATH=bin/:$LD_LIBRARY_PATH 
   export force_glsl_extensions_warn=true
   vblank_mode=0 ./bin/Sanctuary -video_app opengl -data_path ../ -sound_app null -system_script sanctuary/unigine.cpp -engine_config ../data/unigine.cfg -video_mode -1 -video_fullscreen 1 -extern_define PHORONIX -video_width 1920 -video_height 1080
Comment 1 zhoujian 2014-08-21 09:02:58 UTC 
Created attachment 105021 [details]
1.png
Comment 2 zhoujian 2014-08-22 00:28:59 UTC 
Created attachment 105068 [details]
1.png
Comment 3 Eero Tamminen 2014-08-22 06:49:16 UTC 

*** This bug has been marked as a duplicate of bug 82897 ***

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