Ctl+Alt+F7 and wake-up from suspend not working , with Nvidia-364.12

Hi devs
Ctl+Alt+F1 works
Ctl+Alt+F7 does not . it hangs on black screen .

wakeup from suspend does not work .
PS : with the driver 355-11 everything works .

another issue /
trying to stop X with “sudo service lightdm stop” i got this message /
nvidia-modeset : ERROR: GPU-0:Idling EVO timedout :0x0000907d:0:0:0x00000
NMI watchdog: BUG: Softlockup …

cannot switch to old driver 355-11 because of this Bug .

Anyhelp please ?

Thank you