Bug 111885

Summary: Display broken on CHV (Different colors in the screen console)
Product: DRI Reporter: Jani Saarinen <jani.saarinen>
Component: DRM/IntelAssignee: Swati Sharma <swati2.sharma>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: major    
Priority: high CC: intel-gfx-bugs, jani.nikula, ville.syrjala
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard: Triaged, ReadyForDev
i915 platform: BSW/CHT i915 features: display/color management

Description Jani Saarinen 2019-10-02 13:58:31 UTC 
When booting BSW system to Console then seeing blue color on screen console. 
Regression caused by drmtip_367 having atleast these patches:

4d154d33941d drm/i915/display: Extract chv_read_luts()
^^^^^^^^^^

8efd06989df4 drm/i915/display: Extract i965_read_luts()
b0a7c754140b drm/i915/display: Add gamma precision function for CHV

Suspected patch highlighted.
Comment 2 Swati Sharma 2019-10-04 09:45:51 UTC 
Following patch should fix the issue
https://patchwork.freedesktop.org/patch/334349/?series=67586&rev=1
Comment 3 Jani Saarinen 2019-10-04 10:23:30 UTC 
Will test when CI builds build.
Comment 4 Jani Saarinen 2019-10-04 11:34:52 UTC 
See normal colors with this build now.
Comment 5 Jani Saarinen 2019-10-09 13:32:01 UTC 
Swati, any update here?
Comment 6 Swati Sharma 2019-10-09 16:17:57 UTC 
Patches 1-2 of series https://patchwork.freedesktop.org/series/67586/) pushed to dinq by Ville. It should fix the issue.
Comment 7 Jani Saarinen 2019-10-09 16:51:31 UTC 
Will test tomorrow latest drm-tip.
Comment 8 Jani Saarinen 2019-10-10 06:13:31 UTC 
Fix in https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7042/git-log-oneline.txt 
tested latest 7046 and works, closing.
Comment 9 Jani Saarinen 2019-10-10 06:17:19 UTC 
Thanks Swati, closing.

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