On Thu, 8 Sep 2016, Michel Dänzer wrote:
> On 08/09/16 08:32 AM, Alex Goins wrote:
> >
> > I'm encountering some very strange issues when running these with PRIME
> > Synchronization enabled, even after fixing our internal cursor handling.
> > When
> > moving the cursor around without damaging anything, it's smooth. When
> > having an
> > application causing damage, and thus flipping, without the cursor moving,
> > it's
> > smooth. When moving the cursor AND causing damage, both the cursor and the
> > flipping seem to be going at roughly 30 Hz, half speed.
> >
> > Skipping the call to either drmModeMoveCursor() in
> > drmmode_set_cursor_position()
> > or the call to drmModePageFlip() in drmmode_SharedPixmapFlip() alleviates
> > the
> > issue for flipping or cursor moving, respectively, so I'm inclined to say
> > that
> > drmModeMoveCursor() or drmModePageFlip() are interfering with each other.
> > Could
> > that be?
>
> It certainly could be, but that would probably be an issue in your
> kernel driver.
Sorry, should have specified. This is running against the i915 DRM driver as the
slave. drmModeMoveCursor() and drmModePageFlip() are calling into i915 on kernel
4.6.
Thanks,
Alex
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