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GPU Tearing on X11

Question asked by mikef on Oct 1, 2014
Latest reply on Oct 6, 2014 by igorpadykov
Branched to a new discussion

I know that this question/problem has come up before, but I don't think there is any resolution to it.


I've got Ubuntu 13.10 running atop kernel 3.0.17, running X11, and Chromium v 35 on that.  Chromium is GPU accelerated (except for WebGL), and I'm writing an app in HTML5 which requires GPU accelerated CSS3 transitions.  Hardware is a Wandboard Quad; although that won't necessarily be my end hardware (it was a good development platform for my needs).


My animations run at a gorgeous 60FPS.  BUT, it tears because of the v-sync issue where the IPU is not properly passing the signal to X11.


I do have a custom application that runs on the framebuffer to accomplish one portion of my animation, without any issue.  But it is a deal breaker for me to not have the other portion of my application in HTML5 without tearing.


My questions are;


1) Is this in the pipeline to be fixed?  If so, ETA?

2) Does anyone have any advice/suggestions on a fix?

3) Is there any way to make this a priority if it is not in the very near pipeline?  I'm looking at a very aggressive Q1/2015 production date, with significant volumes.