I have several Toshiba notebooks of different models like Tecra-M2 & Tecra-A2. On all of them the standby function (Fn+F3) works only once from boot, after the first resume it becomes unefective, other functions like LCD panel brightness continue to work properly.
You have to troubleshoot it by following the instructions on pages
Suspend to RAM - openSUSE
and
Powersave s2ram - openSUSE
Trying all that from a virtual console (exiting the GUI) may also help. And try googling for your specific Toshiba models and liGNUx suspend – maybe somebody with the same laptop has already found a solution to your ailments.
Thanks for the answer…
In fact suspend to ram works fine and all the time.
However there is a behaviour difference between the one from KDE menus and the toshutils key shortcut as suspending with KDE won’t make a wakeup session password prompt while suspending from toshutils WILL make the notebook asking for session password on resume.