**Bug** in 5.0.2 Impress

Just recently upgraded to 5.0.2 from 4.4.? and presentations that I created in 4.4.? which had Fade-in slide animations are plagued with a slide flicker. The flicker is a split second flash of the previous slide at the end of the transition. This makes it completely unusable.

I thought it might be an issue with incompatibility between the older version fade-in and the newer one, so I removed the fade-in slide transition from the original and re-created the transition with the new version FadeSmoothly. The new version has the same problem.I have tested many of the transitions and the flicker appears using Fine Dissolve, Fade Through Black, Fade Smoothly, Rochade, Turn around, Turn down– there maybe others that I have not tested but these are for sure.

Has anyone else seen this problem?

Turn off the hardware acceleration.

Tools -> Options -> View: Graphics Output Turn off hardware acceleration.

Won't matter on a fast system, but will have smother transitions--and,
depending on your GPU and driver some of the OpenGL transistions may not
work.

Rcvd in PM

4bf5c083 wrote

Sorry, I should have mentioned that I'm using on an iMac running 10.10.5
Yosemite. I looked in Preferences and hardware acceleration is grayed out
so it's not even an option. This is a fast system Intel Core i5.

I deselected anti-aliasing but that didn't do anything.

Please open a bug report then, Bugzilla https://bugs.documentfoundation.org

Fully describe the issue with transitions, and as well provide details of
your OS X install and hardware. Especially provide the OpenGL details-- see
this Wiki https://wiki.documentfoundation.org/OpenGL

The OpenGL extensions viewer provides a complete summary of what is in place
on OS X

I opened a bug report as suggested. Thanks for your replies.