markoni

Gsync 1080p monitor - fixed 30hz freq.???

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Hi, I have been searching for the answer for very long but still unsuccessfully :(  I am trying to buy a new, 24 inch, 1080p monitor but only with the option to set it manually to work at 30hz. I have been siming since FS9 and 30hz freq. is the most remarkable setting so far in terms of smoothness. I had never believed that any real flight simulation (FSX, P3D) would be so smooth until I discovered this monitor setting in P3D. Problem is that my current 24 inch monitor doesn't support this frequency, so I had to switch to an old 19 inch monitor that I managed to set to work at 30hz. All the models of 1080p monitors I checked so far doesn't have 30hz frequency supported officially, based on specification I checked. As far as I know, all gsync monitors can work in range of 30hz to 144hz. That is why I assume that it is possible to disable gsync in NCP, set customs 1920x1080 resolution  and set fixed frequency at 30hz. I would really appreciate if any of the forum members could try this and confirm if it works, my choice would be much easier :) Thanks. 

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Well, most digital displays nowadays are 60hz and upwards. 30hz is a signal that modern displays generally don't support natively anymore, and forcing an unsupported signal with a custom resolution can not only result in jerky motion and laggy display, but it can also damage your monitor.

What some do is set the monitor to 60hz and then force a 1/2 refresh rate in nVidia control panel.

About G-Sync monitors, their purpose is not to function at 30hz, it beats the purpose of G-sync. I have a G-sync monitor myself and cannot set it to 30hz without image distortion.

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19 minutes ago, jacf182 said:

Well, most digital displays nowadays are 60hz and upwards. 30hz is a signal that modern displays generally don't support natively anymore, and forcing an unsupported signal with a custom resolution can not only result in jerky motion and laggy display, but it can also damage your monitor.

What some do is set the monitor to 60hz and then force a 1/2 refresh rate in nVidia control panel.

About G-Sync monitors, their purpose is not to function at 30hz, it beats the purpose of G-sync. I have a G-sync monitor myself and cannot set it to 30hz without image distortion.

1/2 refresh rate does not work with P3D.  U will need a dedicated 30hz monitor.  I tried a g sync monitor once.  It was horrible and would not run at 30hz with g sync disabled.  

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39 minutes ago, markoni said:

Hi, I have been searching for the answer for very long but still unsuccessfully :(  I am trying to buy a new, 24 inch, 1080p monitor but only with the option to set it manually to work at 30hz. I have been siming since FS9 and 30hz freq. is the most remarkable setting so far in terms of smoothness. I had never believed that any real flight simulation (FSX, P3D) would be so smooth until I discovered this monitor setting in P3D. Problem is that my current 24 inch monitor doesn't support this frequency, so I had to switch to an old 19 inch monitor that I managed to set to work at 30hz. All the models of 1080p monitors I checked so far doesn't have 30hz frequency supported officially, based on specification I checked. As far as I know, all gsync monitors can work in range of 30hz to 144hz. That is why I assume that it is possible to disable gsync in NCP, set customs 1920x1080 resolution  and set fixed frequency at 30hz. I would really appreciate if any of the forum members could try this and confirm if it works, my choice would be much easier :) Thanks. 

Wrong sir, i have a gsync monitor that doesnt support 30hz, because only has display port, be aware that you need hdmi to have 30hz available.

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1 minute ago, mpw8679 said:

1/2 refresh rate does not work with P3D.  U will need a dedicated 30hz monitor.  I tried a g sync monitor once.  It was horrible and would not run at 30hz with g sync disabled.  

You're right about needing a dedicated 30hz monitor.

My G-Sync monitor is not bad at all. I don't use any V-sync or FPS limiter.

The "magic" of G-Sync is that it automatically matches the refresh rate of the monitor to whatever FPS the system is producing, so theoretically, limiting the FPS to 30 should adjust the monitor to 30hz. This has had mixed results with many people.

Personally I like G-Sync since I use my monitor to play games and the experience is very smooth, then again my specs can support it.

With P3D, it's always hit or miss, and even on similar hardware we all have different results.

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I would be very happy if P3D worked in full screen and supported 1/2 vsycn, it would be as fluid as FSX, but it doesn't work. But I am still not sure about gsync monitor and fixed 30hz. Is this only matter of suitable cable. If I go for HDMI would I be able to force it to work constantly at 30hz without any problems with the picture? Is there anyone who could try this and report back. Thanks. 

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Forget that, you can only have 30hz with hdmi and gsync only works with displayport, you cant have both.

I have a gsync 1440p monitor and a 4k TV, and for flight simulation 4k@30hz is the best expirience for me.

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With gsync you should NOT lock your frame rate at all, that's the whole point. It will sync every frame as long as the frame rate stays in the interval, 30-144Hz for example.

If the frame rate goes above, then vsync should kick in.

I'm considering getting a gsync monitor, but have yet to read something definitive about if gsync works as intended with P3D (and FSX & FS9).

Gsync supports both full screen and windowed mode so I assume it would work, right?!

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1 minute ago, neumanix said:

With gsync you should NOT lock your frame rate at all, that's the whole point. It will sync every frame as long as the frame rate stays in the interval, 30-144Hz for example.

If the frame rate goes above, then vsync should kick in.

I'm considering getting a gsync monitor, but have yet to read something definitive about if gsync works as intended with P3D (and FSX & FS9).

Gsync supports both full screen and windowed mode so I assume it would work, right?!

Unfortunately doesn't give a good result with P3D. It seems that only 30hz monitor is the wining combination :( 

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41 minutes ago, dmarques69 said:

Forget that, you can only have 30hz with hdmi and gsync only works with displayport, you cant have both.

I have a gsync 1440p monitor and a 4k TV, and for flight simulation 4k@30hz is the best expirience for me.

Ok, but what about setting 4k monitor to 1080p resolution. Would I be able still to force it to work at 30hz with 1080p? I simply like P3D with all the sliders almost to the right :) It works perfect with 1080p, even with 8x AASS. I just don't want to sacrifice my settings just to play it at 4k? 

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14 minutes ago, markoni said:

Unfortunately doesn't give a good result with P3D. It seems that only 30hz monitor is the wining combination :( 

Exactly what is it that isn't working? Do you get stutter and/or tearing even with gsync on?

I use P3D mainly for GA flying and can stay locked at 60fps on my current 60Hz monitor, which is pretty good, especially when using TrackIR.

I'm looking into gsync monitors for playing other games too besides sims, but was hoping that it would work in FS9/FSX/P3D plus reduce the input lag you get from vsync.

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2 hours ago, dmarques69 said:

Wrong sir, i have a gsync monitor that doesnt support 30hz, because only has display port, be aware that you need hdmi to have 30hz available.

False information

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1 hour ago, dmarques69 said:

Forget that, you can only have 30hz with hdmi and gsync only works with displayport, you cant have both.

I have a gsync 1440p monitor and a 4k TV, and for flight simulation 4k@30hz is the best expirience for me.

Please stop giving bad advice.  U are going to mislead the poor guy

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33 minutes ago, markoni said:

Ok, but what about setting 4k monitor to 1080p resolution. Would I be able still to force it to work at 30hz with 1080p? I simply like P3D with all the sliders almost to the right :) It works perfect with 1080p, even with 8x AASS. I just don't want to sacrifice my settings just to play it at 4k? 

With your system u should be able to run at 4k pretty decent.  One advantage to 4k is u can lower your AA settings and still have a sharp picture.  Once u use 4k it is hard to go back to anything else.  The type of cable has nothing to do with being able to display 30hz.  It's all on the monitor in that regard.  I have my 38 inch ultra wide cruising along as we speak at 30hz via display port connection.  Most 4k monitors should display at 30hz with HDMI and display port and at 60hz with only display port.  HDMI does not have the capability to display 4k at 60hz.  

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2 hours ago, jacf182 said:

You're right about needing a dedicated 30hz monitor.

My G-Sync monitor is not bad at all. I don't use any V-sync or FPS limiter.

The "magic" of G-Sync is that it automatically matches the refresh rate of the monitor to whatever FPS the system is producing, so theoretically, limiting the FPS to 30 should adjust the monitor to 30hz. This has had mixed results with many people.

Personally I like G-Sync since I use my monitor to play games and the experience is very smooth, then again my specs can support it.

With P3D, it's always hit or miss, and even on similar hardware we all have different results.

If u can maintain at LEAST 35 fps g sync seems to work good.  The problem is when u drop around 30 fps the stuttering starts.  There is also a flaw in g sync when using the mouse in windowed mode that does not jive well with p3d.  Hopefully a future driver update can resolve these issues.

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22 minutes ago, mpw8679 said:

With your system u should be able to run at 4k pretty decent.  One advantage to 4k is u can lower your AA settings and still have a sharp picture.  Once u use 4k it is hard to go back to anything else.  The type of cable has nothing to do with being able to display 30hz.  It's all on the monitor in that regard.  I have my 38 inch ultra wide cruising along as we speak at 30hz via display port connection.  Most 4k monitors should display at 30hz with HDMI and display port and at 60hz with only display port.  HDMI does not have the capability to display 4k at 60hz.  

So it means that if I set resolution down to 1080p, I would still be able to set 30hz without any problem?

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1 hour ago, markoni said:

So it means that if I set resolution down to 1080p, I would still be able to set 30hz without any problem?

If the monitor is 30hz capable then yes.  Just be aware that 1080p on a 4k monitor the picture will not be the best.  1440p would be better but for best results u want to run at native resolution.  I ran 4k with a gtx 980 with good success using p3d.  

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13 minutes ago, mpw8679 said:

If the monitor is 30hz capable then yes.  Just be aware that 1080p on a 4k monitor the picture will not be the best.  1440p would be better but for best results u want to run at native resolution.  I ran 4k with a gtx 980 with good success using p3d.  

Thanks. I know that native is the best solution, but I plan to go for 28 inch max, I think 1080p would be acceptable. 4k is twice as 1080p so maybe pixels would be scaled better than 1440p on 4k monitor. Just assumption :)

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2 hours ago, mpw8679 said:

False information

False information??? so you know my monitor?. do you see any 30hz here?

ungHexl.jpg

2 hours ago, mpw8679 said:

Please stop giving bad advice.  U are going to mislead the poor guy

What bad advice? gsync only works with display port, period! unless you have a monitor capable of doing 30hz via displayport you cant have both, if you know any, share to help the "poor guy", its more valid that just saying that the others are wrong.

 

 

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55 minutes ago, dmarques69 said:

False information??? so you know my monitor?. do you see any 30hz here?

ungHexl.jpg

What bad advice? gsync only works with display port, period! unless you have a monitor capable of doing 30hz via displayport you cant have both, if you know any, share to help the "poor guy", its more valid that just saying that the others are wrong.

 

 

U stated twice that HDMI is required for 30hz.  That is false. U can argue it all u want.  I am helping the guy by trying to filter out the bad information.  The only valid point u have is that display port is required for G sync.  U can not make blanket statements based on only your monitors requirements.  

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7 hours ago, neumanix said:

Exactly what is it that isn't working? Do you get stutter and/or tearing even with gsync on?

I use P3D mainly for GA flying and can stay locked at 60fps on my current 60Hz monitor, which is pretty good, especially when using TrackIR.

I'm looking into gsync monitors for playing other games too besides sims, but was hoping that it would work in FS9/FSX/P3D plus reduce the input lag you get from vsync.

 

6 hours ago, mpw8679 said:

If u can maintain at LEAST 35 fps g sync seems to work good.  The problem is when u drop around 30 fps the stuttering starts.  There is also a flaw in g sync when using the mouse in windowed mode that does not jive well with p3d.  Hopefully a future driver update can resolve these issues.

I own an ASUS PG279Q and I have great results regardless of fps...AS LONG AS LOW FPS ISN'T CAUSED BY CPU/GPU NOT BEING ABLE TO KEEP UP WITH P3D. If you run G-Sync setting to allow windowed mode, and use a late generation Nvidia driver, G-Sync can work well even below 30 fps. This is not necessarily the case for ALL G-Sync monitor hardware. You must be careful which monitor you buy, and what generation of G-Sync hardware it uses.

I have done several tests in P3D with frames locked at 10, 15, 20, 24, 28, 30, 35, 45, 60 fps and G-Sync works perfectly for all. I usually run locked frames because the 279Q will not allow 30Hz refresh locked, and because I don't want my GPU outputting a higher fps than my CPU/other hardware can keep up with.

ALL of the blanket statements in earlier posts about G-Sync not working at or below 30 fps are not true for every monitor.

I agree with others, that if you can build a system that allows 30Hz refresh, and can maintain at least 30 fps, even G-Sync won't beat that for consistently smooth simming.

The problem is that too many people confuse causes of lack of smoothness. Stuttering is not always/usually caused by low fps.

Edited by somiller
Changed Mhz to Hz

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19 minutes ago, somiller said:

 

I own an ASUS PG279Q and I have great results regardless of fps...AS LONG AS LOW FPS ISN'T CAUSED BY CPU/GPU NOT BEING ABLE TO KEEP UP WITH P3D. If you run G-Sync setting to allow windowed mode, and use a late generation Nvidia driver, G-Sync can work well even below 30 fps. This is not necessarily the case for ALL G-Sync monitor hardware. You must be careful which monitor you buy, and what generation of G-Sync hardware it uses.

I have done several tests in P3D with frames locked at 10, 15, 20, 24, 28, 30, 35, 45, 60 fps and G-Sync works perfectly for all. I usually run locked frames because the 279Q will not allow 30Mhz refresh locked, and because I don't want my GPU outputting a higher fps than my CPU/other hardware can keep up with.

ALL of the blanket statements in earlier posts about G-Sync not working at or below 30 fps are not true for every monitor.

I agree with others, that if you can build a system that allows 30Mhz refresh, and can maintain at least 30 fps, even G-Sync won't beat that for consistently smooth simming.

The problem is that too many people confuse causes of lack of smoothness. Stuttering is not always/usually caused by low fps.

How do u test g sync at 10 frames?? I'm not arguing what u are saying I just have never seen g sync work properly on anything below 30fps.  

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2 hours ago, mpw8679 said:

How do u test g sync at 10 frames?? I'm not arguing what u are saying I just have never seen g sync work properly on anything below 30fps.  

Matt,

The newer implementations of G-Sync hardware are capable of switching to double, triple, quadruple, etc., refresh rate multiples of fps. Within that implementation, when fps drops below the refresh capability of the monitor, G-Sync simply sets a refresh multiple that syncs with fps...ex.: 15fps - 45Hz refresh. This capability is one of the major differences between G-Sync, and current implementations of FreeSync, which is a shame, because FreeSync monitors are SO much less expensive.

There are some reviews of G-sync in which the reviewers use an oscilloscope to demonstrate the Hz switch to multiple of fps...it's pretty ingenious. An area of primary concern when I was researching monitors, was the worry of G-Sync not functioning below a certain fps/Hz threshold.

Edited by somiller
changed Mhz to Hz

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7 minutes ago, somiller said:

Matt,

The newer implementations of G-Sync hardware are capable of switching to double, triple, quadruple, etc., refresh rate multiples of fps. Within that implementation, when fps drops below the refresh capability of the monitor, G-Sync simply sets a refresh multiple that syncs with fps...ex.: 15fps - 45Mhz refresh. This capability is one of the major differences between G-Sync, and current implementations of FreeSync, which is a shame, because FreeSync monitors are SO much less expensive.

There are some reviews of G-sync in which the reviewers use an oscilloscope to demonstrate the Mhz switch to multiple of fps...it's pretty ingenious. An area of primary concern when I was researching monitors, was the worry of G-Sync not functioning below a certain fps/Mhz threshold.

Very interesting.  I appreciate the info!

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1 hour ago, mpw8679 said:

U stated twice that HDMI is required for 30hz.  That is false. U can argue it all u want.  I am helping the guy by trying to filter out the bad information.  The only valid point u have is that display port is required for G sync.  U can not make blanket statements based on only your monitors requirements.  

So part of i stated is wrong information(in your opinion) not all, you can be more accurate next time. Really sorry, i didnt notice that you where an expert, please proceed on filtering the bad information.

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