Bug 84304 - [BSW]Monitor is black screen with backlight on some HDMI resolutions.
Summary: [BSW]Monitor is black screen with backlight on some HDMI resolutions.
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: high major
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-09-25 02:32 UTC by liulei
Modified: 2017-10-06 14:35 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg (241.16 KB, text/plain)
2014-09-25 02:32 UTC, liulei 		no flags Details
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Description liulei 2014-09-25 02:32:31 UTC 
Created attachment 106825 [details]
dmesg

==System Environment==
--------------------------
Regression: This is first time I test this machine, and I fail to find a good commit.

Non-working platforms: Braswell

==kernel==
--------------------------
-nightly: 1c38dbc94bc61e685c72994cc9e634d4eb8c4da1 (fails)
    drm-intel-nightly: 2014y-09m-23d-14h-26m-24s UTC integration manifest
-queued: 9adccc6063d1cf6ba38a5a26b87001554105be18 (fails)
    drm/i915: add SW tracking to FBC enabling
-fixes: c84db77010877da6c5da119868ed54c43d59e726 (fails)
    drm/i915/hdmi: fix hdmi audio state readout

==Bug detailed description==
-----------------------------
Monitor is black screen with backlight on some HDMI resolutions.

Resolutions Detail:
1920x1080 30 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40 74250
1920x1080 30 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40 74176
1920x1080 25 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 74250
1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40 74176
1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40 74176


==Reproduce steps==
---------------------------- 
1. ./testdisplay -o ConnectorsID,mode 
2. Check HDMI monitor
Comment 1 Jani Nikula 2015-01-29 13:16:57 UTC 
Please retest on current drm-intel-nightly.
Comment 2 liulei 2015-01-30 08:33:23 UTC 
(In reply to Jani Nikula from comment #1)
> Please retest on current drm-intel-nightly.

1920x1080 30 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x40 74176
1920x1080 25 1920 2448 2492 2640 1080 1084 1089 1125 0x5 0x40 74250
1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40 74250
1920x1080 24 1920 2558 2602 2750 1080 1084 1089 1125 0x5 0x40 74176

The screen is black with above four resolutions.
Comment 3 Jani Nikula 2015-01-30 08:40:49 UTC 
How about with http://patchwork.freedesktop.org/patch/41360 on top?
Comment 4 liulei 2015-02-02 05:48:12 UTC 
(In reply to Jani Nikula from comment #3)
> How about with http://patchwork.freedesktop.org/patch/41360 on top?

The patch is unavailable.The function in your patch "chv_update_pll(struct intel_crtc *crtc)" has changed to  "chv_update_pll(struct intel_crtc *crtc, struct intel_crtc_config *pipe_config)". Would you please offer a new one?
Comment 5 Jani Nikula 2015-03-06 08:15:56 UTC 
Please try current drm-intel-nightly first, and if that doesn't work, try these three on top:

http://patchwork.freedesktop.org/patch/44030
http://patchwork.freedesktop.org/patch/44031
http://patchwork.freedesktop.org/patch/44032
Comment 6 liulei 2015-03-09 01:26:43 UTC 
Latest -nightly kernel works, so close this bug.
Comment 7 Elizabeth 2017-10-06 14:35:15 UTC 
Closing old verified.

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