Bug 94475 - Texture flickering when render with Chrome
Summary: Texture flickering when render with Chrome
Status: RESOLVED MOVED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: unspecified
Hardware: Other Linux (All)
: medium normal
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-03-10 08:02 UTC by Mirko Günther
Modified: 2019-11-27 13:43 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
video showing flickering (4.92 MB, text/plain)
2016-03-10 08:02 UTC, Mirko Günther
no flags Details
additional video showing flickering (4.28 MB, video/quicktime)
2016-03-10 08:03 UTC, Mirko Günther
no flags Details

Description Mirko Günther 2016-03-10 08:02:49 UTC
Created attachment 122198 [details]
video showing flickering

We have written a pepper-plugin for chrome using the (internal) API to render with EGL our video content.

On a Intel-GPU we see flickering and corrupted textures.
This effect is seen with the "current" Intel driver on Debian Stretch but not on Ubuntu 15.10.

Starting with this information I could identify via 'git bisect' the first "bad" commit which introduces the issue:

commit b86974ffd435b2339cd873131e0f90aedc9c4a42
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Aug 18 11:36:46 2015 +0100

    sna/dri2: Do full exchanges of back/pending around deferred swaps
    
    References: https://bugs.freedesktop.org/show_bug.cgi?id=91658
    References: https://bugs.freedesktop.org/show_bug.cgi?id=70461
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Since the environment is a little bit complex to provide a reproducer easily, I've added some videos showing the issue
Comment 1 Mirko Günther 2016-03-10 08:03:47 UTC
Created attachment 122199 [details]
additional video showing flickering
Comment 2 Martin Peres 2019-11-27 13:43:11 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/91.


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