Basically all computer monitors need at least 5 seconds to turn on. My iiyama G-Master GB2888UHSU monitor needs 10 (!) seconds to switch on from off-state and on waking up (from sleep mode) it takes 8 seconds. This is driving me crazy as I want to save energy but I can't settle with a startup time this long. So I turned off sleep mode and just keep it on all the time. I'm aware that my model is even slower compared to most other monitors, but others still take quite a long time.

Also note that smartphone displays, car headups and even notebook displays are significantly faster.

Why is that? Are manufacturers simply too lazy when it comes to optimizing the boot time of their monitor operating system? Or does it have a real technical reason?

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put on hold as too broad by harrymc, Toto, bertieb, Pimp Juice IT, music2myear yesterday

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    This definitely depends on the monitor. I wouldn't make a blanket statement about all of them. The 22" ASUS I use at home takes about 5 seconds I woulds say. The almost ubiquitous 17" Dell monitors common in many businesses and educational environments (the Dell E176FP maybe?) take only 2-3 seconds to turn on from my experience, a little slow but much faster than the ASUS. Generally they use this time to simply display their logo which I've found to be unnecessary promotion. But I'm not sure if there's a technical reason for that. – InterLinked Oct 11 at 12:38
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    Many monitors today are multi-input and auto-sensing. I would suspect that this feature uses up time during "boot" that would otherwise be available on a single input monitor. – fred_dot_u Oct 11 at 14:03
  • Just connect the monitor to the power supply separately and open the screen to see if it still takes so long. If so, that is the monitor problem. If not, it could be another problem. – S.Leon Oct 12 at 6:07

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