- and Mageia 6 basically just works brilliantly! and is in production now.
Thank you everybody!

A couple small issues: Spotify (need old version of a lib) ( EDIT: Workaround: viewtopic.php?f=15&t=11003 ),
and browser flash (for some reason freshplayer did not work).
EDIT: simply uninstalled fresplayer and installed flashplayer-plugin (did not see it earlier); OK now
Suspend is perfect, but after wakening from hibernate it seem to fail to ask for encryption key for the disk and get stuck there - will make bug report.
EDIT: now it resumes from hibernation prefectly. But it do not ask for encryption key, it seem to have stored it. I am not sure that is good, but my swap is unencrypted anyway because of problems earlier years. Need to experiment with swap on encrypted LVM on a nonproduction system...