Screen Flash and Visual Effect

[[-hh]]

Hi,

one thing you could test is to increase the syncrate (I would start with 25), because especially laptops have very different screen update cycles, influenced by the energy saver.

I had in a loop of 100 repeats with your demo stack no single screen flash on a Mac Desktop (OS 10.10) and LC 5.5.5, 6.6.5, 6.7.1. 7.0.1

So this could be a problem of your MacBook rather than of LC. Did you try with a power supply and energy saver off?
Perhaps your MacBook has also a problem with the fact that your pictures have different sizes (different heights) and the card background is white?

[RogGuay]

Thanks for the great ideas, most of which I had not thought of. Unfortunately none of them make a difference! Still get the flashing. BTW, I may not have been clear about this but, this problem started only after upgrading to Yosemite. I've used this "unlock screen with visual effect ..." for years w/o problems prior to Yosemite . . . same machine, same stacks etc.

Thanks again for looking at this.

Hi,

one thing you could test is to increase the syncrate (I would start with 25), because especially laptops have very different screen update cycles, influenced by the energy saver.

I had in a loop of 100 repeats with your demo stack no single screen flash on a Mac Desktop (OS 10.10) and LC 5.5.5, 6.6.5, 6.7.1. 7.0.1

So this could be a problem of your MacBook rather than of LC. Did you try with a power supply and energy saver off?
Perhaps your MacBook has also a problem with the fact that your pictures have different sizes (different heights) and the card background is white?

[Ken3D]

Any news on this? I see that with 6.7.1 (rc 4) it's still flashing.

[RogGuay]

Some time ago, I reported a problem with random screen flashes that came about with the release of Yosemite and all recent releases of LC. I think I may have discovered the cause.

The problem seems to be exacerbated by having plugin stacks open. My setup was to have 2 of my favorite plugins automatically open when LC is launched. I recently discovered that the random screen flashes are at least far less frequent if I close these plugins. Does this make sense . . . especially since it seems to be Yosemite specific?

Thanks,
Roger

[RogGuay]

I spoke too soon. It just came back with a vengeance!! Open plugin stacks are definitely NOT the cause of my screen flash problem.

Roger

[Ken3D]

This is still happening. About 20% of the time when using a visual effect it flashes. Is this getting any attention? Does it need to be logged as a bug in order to get attention?

Thanks.

[RogGuay]

This is still happening. About 20% of the time when using a visual effect it flashes. Is this getting any attention? Does it need to be logged as a bug in order to get

I bugged it back in Dec of 2014 (#14036), and the last time I looked, I could not even find it in the queue! The problem has NOT gone away in any of the recent stable versions of LC and is still a big problem for me.

Thanks for your company . . . It's downright lonely in here!!

[Ken3D]

I posted a new bug for this and Hanson has confirmed and logged it. The bug number is 15734.

There does seem to be a eerie echo in here doesn't there.