Delayed screenlock on wake up about sxlock HOT 5 OPEN

Does adding Before=sleep.target to the [Unit] section help?

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Have you run systemctl daemon-reload after editing the service? Do you have other services bound to the sleep/suspend/hibernate targets? Does using Before=suspend.target or Before=hibernate.target instead of the sleep.target help? It has to work somehow. There are also some examples here. Maybe use ExecStartPost=/usr/bin/sleep 1 or something like that as a workaround?

Writing a script won't help because sxlock does not fork itself, it has to keep running in foreground until you unlock the screen. Or maybe the lack of notification to the parent process when the screen is actually locked is the problem. There are delays to grab the keyboard and pointer, but I don't see how that could get into seconds...

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Sorry if I reply this late. I tried all the three methods (sleep, suspend, hibernate) and they didn't work. The ExecStartPost didn't work either. I was talking about a script because I can rebind the key that put the pc in sleep mode and redirect to a script that first start sxlock and only then run the command to put the pc in sleep mode

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The way this looks on my system is that the screen flickers perhaps 4 times on wakeup showing the unlocked screen then black alternating before showing the lock screen. My guess is that the graphics card is showing "uninitialized" memory...a different buffer that still has the unlocked desktop on it? I'm thinking the desktop environment (xfce in this case) should take care of clearing graphical memory before going to sleep or before calling the lack command.

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