Bug 94440 - [BXT-P/APL] he DP monitor blinks under 4K resolution when both HDMI and DP monitors are connected
Summary: [BXT-P/APL] he DP monitor blinks under 4K resolution when both HDMI and DP mo...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: high critical
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-03-08 06:10 UTC by Lu, Han
Modified: 2017-07-24 22:42 UTC (History)
3 users (show)

See Also:
i915 platform: BXT
i915 features: display/DP

Attachments

Description Lu, Han 2016-03-08 06:10:03 UTC 
The DP monitor blinks under 4K resolution, but HDMI monitor works well under 4K.

Reproduce Steps
==============
1.under X windows
2.$ xrandr --output DP2 --mode 3840x2160

Expected Result
==============
DP monitor works well under 4K resolution.

Actual Result
==============
DP monitor blinks.
Comment 1 Paulo Zanoni 2016-03-08 18:26:49 UTC 
Please boot with drm.debug=0xe, reproduce the bug, then attach the dmesg output here.
Comment 2 Lu, Han 2016-03-11 00:38:53 UTC 
The issue is not reproduced in latest commit on APL RVPA1 and RVPB2, so I close it. Thanks.

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