Comment # 1 on bug 1101393 from Maurizio Galli

EDIT: Suspend from the menu locks the screen first and then suspend as per the
desired behavior.

However when opening and closing the laptop lid, Suspend triggers the behavior
in comment #1(In reply to Maurizio Galli from comment #0)
> I'm reporting this as I believe there are  potential consequences for user's
> security and privacy.
> 
> When system resumes from suspend, there's a small 1-2 seconds delay before
> prompting a lockscreen. Within this delay, the content of the desktop before
> suspend is fully visible, same as if it was unlocked.
> After 1-2 seconds, it shows the locked screen. 
> 
> I tried with several lockscreens such as xscreensaver and light-locker but
> the result is always the same. 
> 
> I suspect it's a race condition.
> 
> Steps to reproduce:
> 1. Suspend system through menu or by closing laptop lid
> 2. Resume by pressing the power button or by opening laptop lid
> 3. It should be expected to see a lock screen but instead desktop content is
> shown
> 
> I've tried to make the lockscreen load before suspend through a systemd
> service but I did not succeed.

EDIT: Suspend from the menu locks the screen first and then suspend as per the
desired behavior.

However when opening and closing the laptop lid, Suspend triggers the behavior
described above.

Updated steps to reproduce:
1. Suspend system by closing laptop lid
2. Resume by pressing the power button or by opening laptop lid
3. It should be expected to see a lock screen but instead desktop content is
shown