input lag

sybaris

sybaris

sybaris

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21 Jun 2010
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infornt of my PC
I see a lot of posts debating and quibbling over input lag. I may be wrong but that suggests to me, the time taken from the source of the picture processing it and pushing it out on to the screen.

Is that something that is really all that noticeable? if so how much is unacceptable? How many milliseconds = frustration or a sub standard experience?

I ask this because I am after a new screen and the more I research, the more arguments I come across. It is very off putting and wondering what compromises to make would be better than any other compromise. Input lag, back-light bleed, response times, resolutions, panel type, frequency, inputs, price. The list goes on. Where do we draw the line and stop analysing and just go with it?
 
Interesting article but is squeezing the last millisecond out so important?
Do we spend too much time and effort obsessing over something that may not be visible to the naked eye or beyond our own reaction times?

Just thought I would throw it out there.
 
I've never worried about it nor noticed it but then again, I don't play fps games much and certainly not competitively. The nearest I get to fast paced is a jaunt through something like Bioshock Infinite.
 
It's more of a problem with TVs IME. All the processing tricks can make the responses slow and inconsistent for console gaming. Happily most decent sets now have a game mode that disables it all.

With monitors people have tended to obsess about relatively meaningless manufacturer made up stats like response times. I could never see the response difference between a 25ms Dell IPS panel and a 5ms uber fast gaming monitor (with an awful TN panel).

If input lag was that much of an issue, people would still be using CRTs. :D
 
whether a user experiences any problems with lag really does depend on the user and on their specific uses. Some people will find lag of 16ms+ too much for FPS gaming for instance, and it will add a noticeable delay to some. I would say it was a big issue for many people, but fortunately today, lag seems to be a lot lower in general on LCD's and some manufacturers also take measures to reduce it even more (game modes, through modes etc)
 
Lag becomes more noticeable with increased fps.

If you're gaming at 30fps then a few ms here and there makes absolutely no difference, as your input lag from the low fps and vsync is already in the 50ms+ range.

For those of us that prefer low detail, vsync off and 120fps+, even 5ms input lag is detectable.

MagicBoy said:
If input lag was that much of an issue, people would still be using CRTs. :D
Click to expand...

Some of us are :)
 
Also intresting article at Anandtech, if you've not seen it yet.

I noticed input lag when it was high as 25ms but that was next to a 2ms panel.

http://www.anandtech.com/show/2803

Input lag starts with the mouse.

Mouse > CPU > GPU > FrameBuffer > Monitor
 
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