kdenlive-19.12.0 and 19.12.1 too slow to be usable

[Simon Gerraty]

FYI, I fecthed and installed:

https://pkg.freebsd.org/FreeBSD:11:amd64/release_3/All/kdenlive-18.12.3.txz

which works much better.  I still get noise on tty - presumably from
some of the libraries that kdenlive uses (there are all still from
quarterly collection), but kdenlive works better, playhead tracks video
ok and audio plays in sync.

--sjg

On Wed, 22 Jan 2020 10:19:30 -0800, Simon Gerraty writes:
>Hi all.
>
>I cc'd ports, since kdenlive depends on lots of other packages.
>
>kdenlive-18.x was working fine on my
>i9-7900X CPU @ 3.30GHz (10 core), with
>NVIDIA GPU GeForce GTX 1050 Ti
>
>I recently ran pkg upgrade -f, and now with kdenlive-19.12.0
>is it completely unusable.
>
>The display is sluggish (to put it kindly); the play head moves in big
>jumps (stalls for several seconds at times), the video does not display
>even close to smoothly, and the audio is out of sync. 
>
>There is also a huge volume of debug info being spewed to tty, with what
>looks like lots of errors.  Which I did not see with 18.x
>
>Since the release notes for kdenlive 19.12.1 mentioned disabling debug,
>I tried downloading the kdenlive-19.12.1 from the latest pkg build, and
>that installs and runs, but I still see lots of debug noise on tty
>and the performance is still too bad to allow editing of anything.
>
>Just to confuse things further, a machine at work, which run pkg
>upgrade -f at about the same time, kdenlive-19.12.0 works tollerably
>despite the endless stream of debug output.
>
>That box has Xeon(R) CPU E5-2637 v3 @ 3.50GHz (8 core) with
>NVIDIA GPU Quadro K4200 (GK104GL)
>
>Thoughts?
>--sjg