Author Topic: rgb mod and hd tvs is there lag?  (Read 898 times)

8bitForLife

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rgb mod and hd tvs is there lag?
« on: September 01, 2012, 06:39:34 PM »
I was reading that even with rgb modded systems there is a slight lag of graphics on hd tv's. Is this true and how much of a lag is it or is it not really noticeable.
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ProfessorProfessorson

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Re: rgb mod and hd tvs is there lag?
« Reply #1 on: September 01, 2012, 07:28:44 PM »
It will vary from Tv to Tv.

fraggore

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Re: rgb mod and hd tvs is there lag?
« Reply #2 on: September 02, 2012, 10:41:37 AM »
there is lag like ProfessorProfessorson same are better the others a crt is your friend if you got the room.
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8bitForLife

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Re: rgb mod and hd tvs is there lag?
« Reply #3 on: September 02, 2012, 06:48:09 PM »
ya im trying to score a trinitron. But my very nice hdtv well have to do for my rx thats modded thesteve sent me pictures looks great.
Turbo Duo Rx Turbo Grafx 16, Atari 2600 5200 7800 Jaguar + CD Starpath Supercharger, Gba DS DSI 3Ds Nes Snes N64 VB GC Wii, Xbox Xbox 360, Ps1 Ps2 Ps3 Psp Fat Psp slim, GenesisV3 CDX Nomad Saturn Dreamcast JP USA, NGPC

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Bloody Wolf

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Re: rgb mod and hd tvs is there lag?
« Reply #4 on: September 02, 2012, 06:51:12 PM »
Been searching for free CRTs almost daily on craigslist lol

esteban

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Re: rgb mod and hd tvs is there lag?
« Reply #5 on: September 02, 2012, 07:37:04 PM »
NOTE: Try local recycling stations--usually your municipality runs one--and websites (like freecycle) to find old televisions.



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Hewitson

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Re: rgb mod and hd tvs is there lag?
« Reply #6 on: September 02, 2012, 07:42:28 PM »
The lag on a modern HDTV of decent quality is NOT going to be even slightly noticable. My Panasonic plasma has a response time of 0.001 milliseconds.

Of course, you will certainly get a better looking picture with a CRT.

kazekirifx

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Re: rgb mod and hd tvs is there lag?
« Reply #7 on: September 02, 2012, 07:52:36 PM »
My Sony HDTV is not of decent quality.

HercTNT

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Re: rgb mod and hd tvs is there lag?
« Reply #8 on: September 02, 2012, 08:05:03 PM »
i have a samsung 32" lcd and i don't notice any lag. i think it depends on what you ahve

SignOfZeta

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Re: rgb mod and hd tvs is there lag?
« Reply #9 on: September 02, 2012, 08:54:21 PM »
The lag on a modern HDTV of decent quality is NOT going to be even slightly noticable. My Panasonic plasma has a response time of 0.001 milliseconds.

The LCD component itself might have a lag that small, but its impossible for an SD signal to have that little lag displayed on an HDTV. The least lag of any line doubler is an XRGB series box, and even they have a lag of one field (ie: half a frame) which is 16ms. Most (probably all) scalers built into TVs are going to lag by at least an entire frame (which is 33ms) since they need to wait for an entire frame to be displayed before they can scale it and then send to the LCD, which will also take some time.

That .001ms time Panasonic quoted is probably the time it takes for the actual pixel to change color once the voltage reaches it. This is great for reducing motion blur and ghosting. There is a lot more to an HDTV signal path that that though.

Now, the older shittier Walmart HDTVs lagged horribly, like 250ms or more, but the new ones have almost none, even the Vizios. They are probably 50ms or less, which is absolutely fine unless you are a Virtual Fighter 3 god or something.

Hewitson

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Re: rgb mod and hd tvs is there lag?
« Reply #10 on: September 02, 2012, 08:56:58 PM »
The lag on a modern HDTV of decent quality is NOT going to be even slightly noticable. My Panasonic plasma has a response time of 0.001 milliseconds.

The LCD component itself might have a lag that small, but its impossible for an SD signal to have that little lag displayed on an HDTV. The least lag of any line doubler is an XRGB series box, and even they have a lag of one field (ie: half a frame) which is 16ms. Most (probably all) scalers built into TVs are going to lag by at least an entire frame (which is 33ms) since they need to wait for an entire frame to be displayed before they can scale it and then send to the LCD, which will also take some time.

That .001ms time Panasonic quoted is probably the time it takes for the actual pixel to change color once the voltage reaches it. This is great for reducing motion blur and ghosting. There is a lot more to an HDTV signal path that that though.
You make a very valid point. Still, 33ms is negligible. Anyone who says they can notice that during gameplay is full of it as far as I'm concerned.

thesteve

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Re: rgb mod and hd tvs is there lag?
« Reply #11 on: September 02, 2012, 09:04:22 PM »
that 33ms make a huge difference playing image fight.
that said its still playable

esteban

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Re: rgb mod and hd tvs is there lag?
« Reply #12 on: September 02, 2012, 09:08:50 PM »
that 33ms make a huge difference playing Image Fight*.
that said its still playable


*no pun intended.

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8bitForLife

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Re: rgb mod and hd tvs is there lag?
« Reply #13 on: September 02, 2012, 09:10:52 PM »
not sure my panasonic lag is but it supports 240p through the component so it might be good.

http://www.sears.com/shc/s/p_10153_12605_05771512000P
this is the exact tv i own i couldnt find any info about lag on it.
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8bitForLife

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Re: rgb mod and hd tvs is there lag?
« Reply #14 on: September 02, 2012, 09:16:27 PM »
apparently its an S-IPS Alpha which i read is good but no idea what it means ha.
Turbo Duo Rx Turbo Grafx 16, Atari 2600 5200 7800 Jaguar + CD Starpath Supercharger, Gba DS DSI 3Ds Nes Snes N64 VB GC Wii, Xbox Xbox 360, Ps1 Ps2 Ps3 Psp Fat Psp slim, GenesisV3 CDX Nomad Saturn Dreamcast JP USA, NGPC

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