I've been using slock for about two months now and, as per the subject, slock doesn't release my screen right away after a valid password entry. After inputing the password and pressing Enter, the screen remains blanked and no amount of input brings it up. I can actually see the LCD backlight flicking on and off with each subsequent keypress or mouse wiggle.
If I wait 3-5 seconds and then press a key or bump the mouse, it finally comes back on, but I do have to wait 3-5 seconds with absolutely no input activity in order for this happen. I'm sure this can't be the expected behaviour. I'm running Arch Linux with xorg-server v1.5.3 on an ATI X1400 (catalyst driver) in case that has any bearing. I normally start slock via xautolock, however I can reproduce this when starting slock manually. Haven't seen anyone else posting about this, so I thought I'd toss it out there. Cheers