Testing with 1.0 r13979 fedora 23 server, I'm now seeing the following xxhash python bindings warning.
2016-10-03 12:10:57,944 Warning: xxhash python bindings not found 2016-10-03 12:10:57,944 no scrolling detection
In one case I was seeing a gedit window that I wasn't able to move, or acquire focus with, which was the first time I saw the warning. It doesn't seem to be consistently producing this issue though.
I'll attach an xpra info, in case that illuminates the issue. (Just as an FYI, it's the same info as in #1330, but I'll re-name and attach just to keep things "neater".)
If I can repro the issue I had found with window moving or focus then I'll attach some logs as well.
xpra info for server giving xxhash python bindings warnings (as well as the ffmpeg encoder import error from #1330)
See #1232: you need "python-xxhash", r13980 will now require it by default to facilitate testing of #1232.
Scrolling detection is an encoding issue and has nothing to do whatsoever with focus issues. If the client used was an OSX client, then it's much more likely to be related to #469, especially if it affects this platform only. If not, then please file a separate ticket for that.
Sure enough, sudo dnf install python--xxhash
did the trick.
Closing.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1331