On Wed, 3 Oct 2018 11:19:28 -0500 Matteo Valdina <matteo.vald...@gmail.com> wrote:
> Hi Y'all, > > I'm working in a Weston-based compositor (4.0 and later on the 5.0) and I > faced an issue. > > I have two different sources (1 QT application and 2 GStreamer waylandsink) > that provide content a live stream using the linux-dmabuf-unstable-v1. > The issue is that the frames of this three sources are displayed in > randomly on all these sources. > > I mean that source 1 display some frame for source 1 and some frame from > source 2 or 3. And this is affecting multiple processes (the QT application > is a different process). > > It looks like the same DMAbuf pool is shared across all applications. > > This is a Kernel 4.12, Weston 5.0, Qt5, GStreamer 1.14 Mesa 18.1.7 and on > an Intel HD graphics 610. > > Any suggestions to tackle this? Hi, is this problem only on your own compositor, while upstream Weston works fine? How different is your compositor from Weston, what have you modified? I can't imagine what kind of bug in the compositor could cause mixing up buffers from different clients at the dmabuf level. Thanks, pq
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