Bug 84303 - [BSW]Monitor losts signal on some interlaced resolutions.
Summary: [BSW]Monitor losts signal on some interlaced resolutions.
Status: CLOSED DUPLICATE of bug 88963
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-09-25 01:48 UTC by liulei
Modified: 2017-10-06 14:35 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg (252.74 KB, text/plain)
2014-09-25 01:48 UTC, liulei 		no flags Details
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Description liulei 2014-09-25 01:48:34 UTC 
Created attachment 106824 [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 to light monitor up since boot)
    drm/i915/hdmi: fix hdmi audio state readout

==Bug detailed description==
-----------------------------
Monitor losts signal  on some interlaced  resolutions.

Resolutions Detail:
1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176
1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250

==Reproduce steps==
---------------------------- 
1. ./testdisplay -o ConnectorsID,mode (interlaced resolution)
2. Check DP monitor
Comment 1 Jani Nikula 2015-01-29 13:16:21 UTC 
Please retest on current drm-intel-nightly.
Comment 2 liulei 2015-02-02 06:43:30 UTC 
1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176
The DP monitor still losts signal on the above two resulutions.
Comment 3 Jeff Zheng 2015-03-17 06:33:01 UTC 

*** This bug has been marked as a duplicate of bug 88963 ***
Comment 4 Elizabeth 2017-10-06 14:35:17 UTC 
Closing old verified.

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