This is caused by xscreensaver locking at 10 minutes (as seen by `xset q`). Worked around the problem with the following (not installing xscreensaver* didn't help as something seems to bring it in as a dependency):
rm -rf /etc/xdg/autostart/xscreensaver*
This is caused by xscreensaver locking at 10 minutes (as seen by `xset q`). Worked around the problem with the following (not installing xscreensaver* didn't help as something seems to bring it in as a dependency):
rm -rf /etc/xdg/ autostart/ xscreensaver*