V-Sync Causes mouse lag? (5970)

[crinkleshoes]

lol... you're not going to like this then...

Back when I had a CRT, I hated going below 85Hz because the flickering would give me a headache!

85Hz and I could spend hours on the computer... 60Hz and I was lucky to manage 30 mins!

I used to have to run at 1152xXXX instead of 1280x1024 because of that... lol...


Yeah... most 120Hz are marketted for the way they can display that 24fps image.

A 50Hz TV can't display a 24fps movie properly (with the exception of one or two higher end models I haven't seen, so can't comment on).

60Hz TVs suffer from what's known as 3:2 pull-down... you'll notice 60 doesn't divide by 24 by a complete integer (2.5)... so to cope, it would display a 24fps image in 2Hz per frame, then 3Hz, then 2Hz etc... meaning one frame will stay on screen 1.5x longer than the next... which is not as the director intended.

Some better TVs are able to compensate for this and properly adjust their refresh rate, but most aren't... so this can be very annoying!

120Hz TVs don't suffer from this problem because 120/24 = 5

However, most of this is academic anyway as on TVs, I've never been able to notice 3:2 pull-down...

But one of the tescos I was kitting out recently had a big entertainment section, with a 60Hz TV next to a 200Hz TV playing the olympics... the smoothness of the 200Hz TV was instantly indentifiable

And yes, this latter problem is a lot more prevelent in LCD TVs than plasmas... damn I miss my old Kuro!



But anyway, the whole argument above was about a computer monitor's refresh rate with an input frame rate that matched it

 

[forest4]

But anyway, the whole argument above was about a computer monitor's refresh rate with an input frame rate that matched it

...unlike the thread's actual topic, mouse lag rofl

 

[thedoc46]

Back when I had a CRT, I hated going below 85Hz because the flickering would give me a headache!

85Hz and I could spend hours on the computer... 60Hz and I was lucky to manage 30 mins!

What is there to love? 60hz on a crt monitor was horrid. It was a personal pet peeve of mine, to walk upto someones screen and see it shimmering like that. I'd always make a point of changing it and explaining as to why they were probably getting headaches.. FPS is not Hz, but the two are joined when it comes to screen tear on LCD's.

Like your bit on the 3.2 pulldown.. Maybe you are not as dumb as i orignally thought.

Anyway lets move on.

 

[Toilet-Duck]

Finally solved it!

I had to reinstall Vista from Windows 7 and disable the Catalyst AI to allow vsync and no input lag in game...

I did try this on Windows 7 but it didnt seem to solve the issue...

So is this normal for an insane amount of input lag to happen when V-Sync is enabled?

It seems I need to disable crossfire so this issue doesnt happen in any of the games! Bit of a waste of money though if I cant have VSync and crossfire enabled in games with the 5970! ..

 

[Rroff]

What is there to love? 60hz on a crt monitor was horrid. It was a personal pet peeve of mine, to walk upto someones screen and see it shimmering like that. I'd always make a point of changing it and explaining as to why they were probably getting headaches.. FPS is not Hz, but the two are joined when it comes to screen tear on LCD's.

Like your bit on the 3.2 pulldown.. Maybe you are not as dumb as i orignally thought.

Anyway lets move on.

I hate it too - when I was working in a call center they got a whole load of 60Hz CRTs cheap... I refused to use one, brought up the issue - it was ignored, to cut a long story short after awhile a good number of staff were complaining of eye strain and headaches and rather than deal with the issue they were just telling them to take more frequent breaks... when I started telling people exactly why it was happening management fitted me up with some imaginary disciplinary charges rather than fight it out I left to work with my dad.

 

[Rroff]

Finally solved it!

I had to reinstall Vista from Windows 7 and disable the Catalyst AI to allow vsync and no input lag in game...

I did try this on Windows 7 but it didnt seem to solve the issue...

So is this normal for an insane amount of input lag to happen when V-Sync is enabled?

It seems I need to disable crossfire so this issue doesnt happen in any of the games! Bit of a waste of money though if I cant have VSync and crossfire enabled in games with the 5970! ..

120Hz TFT would solve those problems... but thats not exactly cheap heh. Most people buy the 5970 coz their fps junkies and don't care about vsync

 

[mmj_uk]

Finally solved it!

I had to reinstall Vista from Windows 7 and disable the Catalyst AI to allow vsync and no input lag in game...

I did try this on Windows 7 but it didnt seem to solve the issue...

So is this normal for an insane amount of input lag to happen when V-Sync is enabled?

It seems I need to disable crossfire so this issue doesnt happen in any of the games! Bit of a waste of money though if I cant have VSync and crossfire enabled in games with the 5970! ..

Can't you return it for a 5870? within 7 working days or receipt you have unconditional right to return an item under DSR if you aren't satisfied.

 

[Toilet-Duck]

Can't you return it for a 5870? within 7 working days or receipt you have unconditional right to return an item under DSR if you aren't satisfied.

Nope its past the 7 days

Ah well as long as it will resolve itself if I buy a new monitor thats Ok, I might invest one for my birthday in a few months