For the record - and in case somebody falls into the same trap:
I found the culprit: live-coniig handles parts of the boot process when running from a
live image. That program is a decade old and has a strange idea on autologon and Xorg. If
"autologin" is not explictly disabled, Xorg is started early in the boot
process, bypassing sysv. When sysv later starts tdm it thinks X is not running which
results in some demons started again which results in utter chaos.
So to prevent this disable autologin:
LIVE_CONFIG_CMDLINE="live-config.noautologin live-config.debug"
Note: If tdm was configurd to autologon, it will still autologon when booted from the
iso.
Nik
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