Windows 7 x64 RTM 59Hz issue

[aquax]

Hello, I have problem with windows 7 x64 that I can only activate 59Hz on my monitor, if I choose 60Hz it will revert back to 59Hz. It only happens in Windows 7 and I'm currently using 7600 RTM build and still have same issue. I can use 60Hz fine with Vista x64, is this a windows 7 bug or driver?

 

[InTeL-iNsIdE]

http://forums.techpowerup.com/showthread.php?t=100161 look at the first post

Fix for the 59Hz Refresh Rate (CCC specific fix at this time)

-Open CCC
-Navigate to the Attributes Tab
-Check off Reduce DVI Frequency on High Resolutions Displays
-Change the Refresh rate to 60Hz
-Right Click on the Desktop > Screen Resolution > Advance Settings > Monitor Tab > Change Screen Refresh Rate to 60Hz
-Done (you can reboot to see if the refresh rate sticks)

 

[aquax]

Thanks, but it didn't solve the problem, Attributes reports maximum refresh rate 60Hz but I can only choose 59, choosing 60 will revert back to 59

I'm using 24" minitor 1920x1080

 

[REVHEAD]

59 hrtz and 60 hrtz are the same it just depends what country you reside in, eg in AU HDTV is broadcast in 59hrtz hence most TVs will do 59 or 60 or just 59, 100 hrtz tvs are really 50htz, I wouldnt worry your monitor is running as it should.

 

[Mussels]

i had this problem too - its mentioned in the AMD link in my sig (which i have previously pointed you to)

if the problem doesnt go away, your only solution is a modified monitor driver through rivatuner.


59hz is actually 59.97Hz - its around since some screens/video card etc can see 1080i as 60Hz as well (since its 30Hz interlaced, it can show as 60 to crappy implemented hardware) - choosing 59.97 guarantees a progressive image.

 

[REVHEAD]

i had this problem too - its mentioned in the AMD link in my sig (which i have previously pointed you to)

if the problem doesnt go away, your only solution is a modified monitor driver through rivatuner.


59hz is actually 59.97Hz - its around since some screens/video card etc can see 1080i as 60Hz as well (since its 30Hz interlaced, it can show as 60 to crappy implemented hardware) - choosing 59.97 guarantees a progressive image.

Yeah thats correct sorry, allso most Blu Ray is @ 23.97 hz advertised as 24p or 24h = 24fps.

 

[Mussels]

Yeah thats correct sorry, allso most Blu Ray is @ 23.97 hz advertised as 24p or 24h = 24fps.

Hertz and refresh rate are completely different things. Hertz is related to the screen only, the disks only have a specified FPS.
But you're correct on the 23.97 being advertised as 24.

 

[qubit]

Win7 RTM hasn't been released yet, you must be using a pirate copy off p2p...?

TechNet subs are the first to get it, which will be on 7th August.

 

[Mussels]

Win7 RTM hasn't been released yet, you must be using a pirate copy off p2p...?

TechNet subs are the first to get it, which will be on 7th August.

MSDN has it. Its hardly pirating, as i am not using cracks or keys - merely a 30 day "trial" for testing purposes. I'll assume the OP is the same.

 

[Easo]

I had this problem too, but fixed it by just few times swiching to 60 HZ.

qubit, should i tell you how many people have that rtm and/or how they got it?

 

[Mussels]

I had this problem too, but fixed it by just few times swiching to 60 HZ.

qubit, should i tell you how many people have that rtm and/or how they got it?

i'd assume at least half the forum has it by now.


I had this on 7127 and it went away when i went 7600 - cause unkown.

 

[btarunr]

I have this issue too, though I can't see any noticeable problem with 59 Hz.

 

[Mussels]

only problem for me is that 59Hz flickers slightly, while 60 doesnt. Its only noticeable on black images (games mostly)

Also, due to most resolutions being stuck at 59Hz, i have to drop all the way to 1280x1024 to enable scaling.

 

[alexp999]

It doesnt matter what i set it at, it goes to 59 Hz, GTA IV is the only thing which stays at 60.
That said, the screen never refreshes, and my monitor always reports 60 Hz.

 

[Mussels]

the 'side effects' vary between screens, i guess.

i get a perfect image without flickering on DVI, which always stays at 60hz, whereas some games give me shit on HDMI at 59Hz (DX10 games drop to 1080i - killing floor runs at 50Hz and flickers slightly, etc etc). Its just another in the list of small bugs ATI need to fix.

 

[REVHEAD]

Hertz and refresh rate are completely different things. Hertz is related to the screen only, the disks only have a specified FPS.
But you're correct on the 23.97 being advertised as 24.

Well this not entirely true, A BR disk , not all but a lot are 24P = 24FPS as the producer intented us to see it, as 45mm is filmed at 24fps, so if you watch the movie @ 1080p = 59hz then the Monitor or TV is actually faking an extra frame this in turn effects the picture quality and you will not get the true Cinema experiance.

DVD, Pal, Digital TV broadcast and NTSC are 59Hz or 60Hz and come out @ 59 frames per second, 100 Hz motion flow and 200 Hz take a 50hz signal and for every frame they add another fake frame to give the 100hz or 200 respective.

With games I am unsure, how they do it but its differant, but in essance, 59 and 60 are identical, only differance is in the mind and how you preceive it.

All broadcast TV and DVDs should be 59.94Hz refresh, and almost all Blurays are actually 23.98Hz (which with 3:2 gives 59.94Hz)

60Hz is actually very rarely used for TV - because when NTSC colour was introduced in the 50s they had to avoid the colour signal interfering with the sound carrier. Rather than tweak the sound carrier frequency, they tweaked the field rate (as the colour signal is locked to the line rate, which is locked to the field rate)

If you ever have a choice - you're almost always better off selecting 59Hz or 59.94Hz (or 23.98 or 23Hz) for refresh rates on Media PCs. TVs MAY display 60p or 60i when fed a 59.94Hz source, or 24p when fed 23.98Hz as the difference is very small.

If you run 60Hz or 24Hz refresh you may get the odd stutter as a frame is repeated every so often.

 

[Mussels]

revhead: you're confusing various issues.

Yes, its true that a 24 FPS movie on a 60Hz screen, frames have to be faked - but that doesnt make the two measurements inter-changeable. The mere fact that they're different, should be hint enough to that fact.

Thats what i was pointing out as an incorrect statement in your previous post.

The stutter and such that you speak of may exist on set top players, but its irrelevant to PC. 24 FPS on a 60Hz screen doesnt mean its got to double frames - its just leaving them on screen longer. You're making mountains out of molehills. (and you broke that quote)

 

[REVHEAD]

Fair enough Mussels, I am just trying to work out the differance of PQ going from 59.94Hz to 60Hz I cant see any evidance of any, thats all I am trying to get at, anyhow I have said enough and I am confusing the issue so I will stop responding now, I apologise.

 

[qubit]

MSDN has it. Its hardly pirating, as i am not using cracks or keys - merely a 30 day "trial" for testing purposes. I'll assume the OP is the same.

Ok, thanks Mussels. I hadn't realised that it was already on MSDN.

 

[Mussels]

Fair enough Mussels, I am just trying to work out the differance of PQ going from 59.94Hz to 60Hz I cant see any evidance of any, thats all I am trying to get at, anyhow I have said enough and I am confusing the issue so I will stop responding now, I apologise.

its not about image quality - its about screens that dont fully support it, or games that only run in it.

When i couldnt use 60Hz, all my DX10 games would revert to 30Hz interlaced.

Many games read the listing (in this order of priority)
60Hz (Progressive)
60Hz (Interlaced, aka 30Hz)
59Hz (progressive)
50Hz (Progressive)

When 59Hz is chosen in windows or is supported in the game - no problem. But when it doesnt work, the games chose the "next best" thing - which isnt 59Hz, they think 60Hz interlaced is higher than 59 progressive, so we get 30Hz


P.S The tweak for 'reduce frequency' doesnt work on native HDMI connections or those using the ATI HDMI dongle, because the tickbox only appears when the ATI CCC sees the connection as DVI.

 

[aquax]

so 59Hz in windows 7 is a problem or not? should I revert back to vista?

 

[Mussels]

so 59Hz in windows 7 is a problem or not? should I revert back to vista?

not really. i'd call it a minor bug.

Its just some random but with the ATI drivers and HDMI screens - hardly earthshattering, but it can cause some small to mid-range complications.

 

[yaji]

What about using PowerStrip ?

This small tool can force much more than 60hz in native resolution (I love my 1680x1050@75hz )

 

[alexp999]

How can you possibly force a higher refresh rate than the monitor supports?

 

[yaji]

I was plaing with RivaTuner and I found out that the maximum pixel clock of my screen is 150mhz. And it was runing only at 130mhz at default resolution and refresh rate. Then I grabed the PowerStrip and started plaing with Advanced Timing Options. I bumped a bit refresh rate and the pixel clock goes up as well. In the end I ended with 75hz refresh rate and 150mhz pixel clock. I cant go much above of this. At 80hz all i get is black screen. But at 75hz its working perfectly fine, and much more smoother.