Bug 79414

Summary:	GFX_OGL turing-fluid demo not working as expected with HDMI+eDP display cloning
Product:	Mesa	Reporter:	Joe Konno <joe.konno>
Component:	Drivers/DRI/i965	Assignee:	Ian Romanick <idr>
Status:	RESOLVED DUPLICATE	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	major
Priority:	medium	CC:	gavin.hindman, james.ausmus, kenneth, matthew.e.hiltner, wayne.boyer
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	turing-fluid demo corruption

Description Joe Konno 2014-05-29 14:59:31 UTC

Created attachment 100107 [details]
turing-fluid demo corruption

GFX_OGL turing-fluid demo shows substantial display corruption (attached) with a GL-composited window manager, the Chrome web browser, and a cloned HDMI+eDP display configuration. The corruption becomes worse over execution time.

This has been reproduced on multiple hardware configurations (where HDMI+eDP is possible) and multiple Linux distros.

Steps to Reproduce:

1. Boot to a GL-composited window manager

2. Connect HDMI +eDP, display clone (not extend)

3. Open Google Chrome web browser

4. Run the below WebGL Demo:
   http://cake23.de/turing-fluid.html

5. Check the behavior of colors over the Window and click on the same

Attachments:

turing fluid demo corruption) Screenshot taken from a Chromium OS build, also seen by others on differing hardware configurations and multiple linux distros.

Comment 1 Joe Konno 2014-05-29 15:30:52 UTC

Comment on attachment 100107 [details]
turing-fluid demo corruption

Added image/png mime type.

Comment 2 Kenneth Graunke 2014-05-29 15:39:47 UTC

http://people.freedesktop.org/~kwg/fluid.trace

I replayed an apitrace on Intel and nVidia a while back.  IIRC, 1x1 green pixels appear in the starting image.  On nVidia, those get blurred/filtered out near the start.  On Intel, they don't, and so the actual algorithm of the demo seems to perpetuate them in odd ways.

I haven't looked into it further, so someone is free to pick this bug up.

Comment 3 Jason Ekstrand 2015-02-09 04:17:02 UTC


*** This bug has been marked as a duplicate of bug 87345 ***

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