Need hints trying to locate a compositing issue.

[Nikolai Zhubr]

Hi Martin,

24.09.2020 22:01, Martin Floeser:
[...]
> We didn't have buffer age support back in 4.11. I just went through the
> history: 4.11.0 was released on 14th August 2013 [0], buffer age support
> got implemented on 21 November 2013 [2].

Indeed, just checked my copy of source, KWIN_USE_BUFFER_AGE does not 
exist here. However, KWIN_TRIPLE_BUFFER does. And apparenly it has good 
effect.

> Which brings me to the original mail: sorry, but this software is too
> old to expect to get any meaningful replies from the devs.

True. Could you recommend some minimal (as old as possible) version to 
look at, as a base for some backpatching attempt? Replacing the whole 
thing is hardly realistic, but improving just kwin might be possible.

Thank you!

Regards,
Nikolai

> Cheers
> Martin Flöser
>
> 0: https://kde.org/announcements/4.11
> 1:
> https://invent.kde.org/plasma/kwin/-/commit/eeb309c149d429a03b3a7d86061de0ed106abe7e
>
>