120 Hz with vga

Hello,

im currently playing on my shitty notebook with like 50 ms delay, so i thought about testing a 120 hz monitor with 1 ms reaction time.

My problem is the notebook which doenst exhibit the DVI Port, so i decided to connect the monitor (which has HDMI, DVI and VGA) over VGA.

Would I get 120 Hz over VGA with the resolution 1024 * 768?

Should i buy a VGA to VGA cable, or can I alternatively use the "dvi to vga"- adapter, coz there is already a "dvi to dvi"-cable in the package.

Thanks in advance.
Comments
32
nope, not with vga, you'd need a dvi port, and most likely your graphics card won't support 120 hz if it's laptop optimized
I have 2 graphic cards in the notebook:

One is in the cpu, the other one is Radeon 6770M.

Whats do u think about it?
Parent
the graphics card might be able to, but you surely won't reach 120 hz alone due to the fact already that you have no dvi port
Parent
might be true, but why do many people in internet say the opposite?
Parent
Most likely because they mix up dvi with vga
Parent
they absolutely dont.

They say thats impossible to get over 100hz and 1080p with vga, but its not the case if u only wanna set1024 * 768.

It might have impact on the picture quality but i dont care. In my case its all about to get 120 hz via VGA.
Parent
You need to have either Dual link dvi, displayport or minidisplayport connectivity in your laptop to get 120hz. You can get max 60hz with VGA and HDMI.
One year ago i connected my notebook to a 75hz monitor via VGA and i got 75 hz.

That means its possible to get more as 60 Hz over VGA.

The question is only how much hz is max possible by the resolution 1024 * 768?

SOme years ago many of us used CRT monitors and got 100 Hz via VGA.

So why should there be the problem of getting the same amount of Hz by connection to a TFT monitor?
Parent
Perhaps the bandwidth of VGA is high enough to produce 100hz at a certain resolution. My guess is that the VGA is not as compatible with LCD/TFT monitors as it was with the old CRT's.

I guess 75hz via VGA shouldn't be a problem on an LCD or a TFT monitor. Picture quality might suffer though.
Parent
Max with VGA is 75hz :o
Parent
what about crt monitors
Parent
Isn't DVI and HDMI the exact same cable, and capable of 1080p@120hz?
Parent
Maybe there is someone who ownes amonitor with at least 120 hz and could test it using vga-cable?
I have a BenQ XL2410T Monitor. Only DVI can bring the 120Hz rest is just 60Hz. HDMI 1.4 can handle more but isn't support by my monitor.
"Only DVI can bring the 120Hz rest is just 60Hz"

thats true if u wanna use 3D and 1080p. But Im talking about 1024 * 768 resolution.

Could u PLEASE test if VGA can handle 100 hz on this monitor.
Parent
I don't have a vga cable here atm. I tested once and it only showed 60Hz at program and intern monitor settings.
I donno about others but I doubt my can do it.
Parent
DisplayPort has no problem with 1920x1080 @120Hz

EDIT: well, maybe not on your monitor since it does not have DP
Parent
waiting for oxy's statement
Pointless to buy a nice 120hz monitor when you will be limited to such a small resolution. Find a used CRT and save yourself some money.
I just wanna test ET for 2 weeks. Everything else doesnt matter :-)
Parent
A VGA cable will have absolutely no issues outputting 120hz or more on lower resolutions. Though there's really no point. You're ultimately wasting money, anything but native resolution on a LCD (1080p in your case I'd imagine) will only introduce more lag and delayed response times.
thanks for the comment. Like i wrote, i wont use 1080p over VGA, because i wanna test ET with 120 Hz and the resolution 1024 * 768.

Why would a non-native resolution introduce more lag? I know the picture wont have a nice quality but the responce time should be the same for every possible resolution. Plz correct me if im wrong.
Parent
It's not. LCDs have a fixed amount of pixels, anything but native resolution will result in the monitor being forced to interpolate pixels, which is at best just a random ass "guessing game" of an algorithm. It obviously reduces the picture quality greatly, and can, and will introduce ghosting at a much larger scale than a 1:1 portray (native resolution) of whatever information is being sent to the monitor in first place.
In other words, if you're going to play a game at 1024 * 768, your monitor will display 1920 * 1080 regardless. It's a static amount and the image being sent to the monitor needs to be reprocessed to fit the screen. Which adds extra calculation processes that are a massive source of various lags. Though, there are more recent displays that try to battle this by boxing the image rather than scaling it to the screen. How exactly this works or is supposed to help, I have no idea, it's been a few years since I last read up on it.

One of the many reasons I never understood these claims of LCDs running at 75hz in lower resolutions supposedly producing better results. (read: all hail the mighty placebo that is the greater refresh rate)

Pretty much the same reason you don't want to change your windows default sense from 6/11, ever,.
Parent
Good morning!

If there is really some kind of lag using the non native resolution so how would u measere this in time? I mean the delay wont be so high and will still yield a much better game experience as playing with 60 Hz and native resolution.
Parent
Like 90% of the cs pro players plays with some other reso than native so prolly not that high
Parent
That depends entirely on the game as well, while leku is right, CS is a lot slower game, but so is ET, if you were to play Q3 or the likes the ghosting effects would be much, much more noticeable with a lower resolution than with its' native.

Anyhow, there are few "tests" you could run yourself, PixPerAn being one of them:
http://www.prad.de/en/monitore/testsoftware/pixperan.html

Otherwise I suggest consulting the people on prad.de's forum or any other community of your liking that's more specialized towards monitors, if you're looking for genuine and specific advice.
Parent
Thanks for all. Right now i ordered a new monitor. Gonna test it for 2 weeks.
Parent
Anyone here saying that you can not get 120hz over a VGA connection has no clue so don't ever take technical advise from them.

Yes, you can easily get 120hz over a VGA connection. Old CRT monitors were all connected with VGA and had no problems at all with 120hz. It just depends on the monitor in question if it will be able to handle a signal that is output at that frequency.
Ronner is old and wise enough to have been around when Alan Turing first built the computer. I trust this comment.
Parent
Oxy and Ronner speak the truth.
85Hz max with VGA.
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