Benq PD2700U Dazzling Blue light when goes to sleep

[Ptilou]

Each time the Benq PD2700U goes to sleep, it displayed a "HDMI no signal" message on a dazzling Blue background for 2 seconds, that will achieve to blind me and the neighbors if I don't do something.

Is there a way to either change that bg color (to black!), or, if not possible, to just remove that warning/message?

Thanks

[Chief Blur Buster]

Best move is to use a black-image-colored screensaver with your computer that triggers about 5 minutes before the Sleep mode.

1. Go to Control Panel, find the sleep mode interval (example: 15 minutes)
2. Now launch screen saver control panel, change screen saver from "(None)" to "Blank" and select a wait about 5 minutes shorter than the sleep mode. (example: 10 minutes)

That way, you get a black-screen blanking 5 minutes before the blue screen surprise. So if you're genuinely away, the blue dazzle will happen unattended. And if you're at the computer, the black screen gives you a comfortable advance notice.

[Ptilou]

Thanks, that's an idea!

But actually (on Linux) I'm doing ctrl-alt-L to lock the screen when I'm about to leave my desk (my "screen saver" is at 0, i.e. never activated...), and the HDMI signal is cut right away. Not sure there is an easy way to delay the HDMI cut after Lock has been performed, besides changing the source code ; and this is Gnome ...

I couldn't believe there is no way to change that in settings...
And the Benq folks are ok with that?

[Ptilou]

Ok, found a way to get rid of that huge annoyance (just read the reviews on Amazon... I'm not alone!)
Was not easy to find (and no mention of that in the manual)

So,
- go to the monitor Menu (3rd button from the right),
- then System,
- then HDMI Auto Switch -> It's "No", toggle it to "Yes" and the blue nightmare is gone!