Get a screen, it runs as 1024x768p 60Hz, but I want to change its frame rate, make it run as 30 Hz, but I am nit sure its 1024x768p 30Hz screen parameters.
HungryJerry said:
Get a screen, it runs as 1024x768p 60Hz, but I want to change its frame rate, make it run as 30 Hz, but I am nit sure its 1024x768p 30Hz screen parameters.
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Hi, I don't think it's possible.
Related
Is it possible to change the Refresh Rate of the screen? The reason being that when I play 25fps movies or 24fps I want them to play judder free, just like my TV which changes to 24p.
The refresh rate and the frame rate are not related:
http://en.wikipedia.org/wiki/Refresh_rate#Liquid_crystal_displays
http://en.wikipedia.org/wiki/Frame_rate
If you are seeing judder, the cause is not the refresh rate (which is 60 Hz). A typical DVI / HDMI desktop LCD screen also has 60 Hz. Have you seen judder when watching a movie on the desktop display?
Yes on a 60hz display you get judder on a 24p source, which is why tvs render at a multiple of 24.
Look up 3:2 pulldown it erik explain things
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I'm looking at the first episode from Game of Thrones, 720p, 23.976 fps. I see no difference between watching it on SGS2 and on a display with HDMI at 60 HZ (other than being ultracrisp on SGS2). I also see no "judder difference" between this and seeing a movie at the cinema. Could it be that I got so used to it? Could it be that the software players do such a good job? I can see some judder occasionally, if I sit really close to the display.
The comments from here are very interesting.
It's because you are used to it. Please do not read anymore of my post if you are used to it because once you see it, you will see it everywhere!
Basically when you play a 23.976fps film on a 60hz display it doesn't divide into a whole number, so some of the frames are repeated which causes less smooth motion. You notice it mostly on panning shots. A good example of it is in opening sequence of the film Shooter (2007).
You'll always have judder from the nature of 24fps video, as it's low frame rate in comparison to what the human eye can perceive which is probably around 50fps. To notice it, take a look at any talk show or sports broadcast on TV they are broadcast at 50 and 60fps. If you slowed that down to 24fps you'd notice straight away.
Btw started watching games of thrones last night, great show!
is it possible to remove the 60 fps cap that samsung has put on our devices. I dnt like limitations
Anarchist310000 said:
is it possible to remove the 60 fps cap that samsung has put on our devices. I dnt like limitations
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More than 60 is useless .
Anarchist310000 said:
is it possible to remove the 60 fps cap that samsung has put on our devices. I dnt like limitations
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The display registers at 60MHz meaning any fps above this will not look smoother or in any way better. In fact you'd simply be pushing the device harder using more battery for zero improvements. Apart from certain benchmarks of course, which is a ridiculous reason to mod a device anyway.
Anarchist310000 said:
is it possible to remove the 60 fps cap that samsung has put on our devices. I dnt like limitations
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Frankly, your opinion is uneducated. The screen of the Galaxy S II has a refresh rate of 60 Hertz, meaning the screen physically cannot display any material higher than 60 frames per second. If you uncap the software frame rate, then the CPU and GPU of the phone will work harder to render as much material as possible - let's say in this case, we have something that has 80 frames to display in a single second. Yet since the screen cannot display 80 frames per second, 20 of those frames will never be shown, and the resulting movement could even suffer from tearing because of the mismatched refresh rate and frame rate. In order to fix tearing, a technique called vertical sync is employed, which would cut frame rates to 60fps in order to eliminate the extra frames which cause tearing.
So, if we remove the frame rate cap on Samsung's version of Android, then what do we accomplish? We increase the workload on the phone's processors, increasing heat output and decreasing battery life. Rendering above 60fps will generate frames which are never shown, and will introduce visual glitches if vertical sync is not used; vertical sync, in turn, would cap the frame rate to 60fps once again. I hope this post has been helpful.
i'm pretty sure the limit is due to the AMOLED display hardware not being capable of higher than 60Hz, but someone correct me if i'm wrong.
however on some of the tegra II phones, the LCD screens have been getting up to 100 FPS on some benchmarks/tests/examples. so i think its the AMOLED that has the cap for the SGS2.
Be happy its not an EVO.
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The point, I'm sure, would be to shut up tegra 2 fanboys once and for all...which would be a nice thing.
bcam117 said:
The point, I'm sure, would be to shut up tegra 2 fanboys once and for all...which would be a nice thing.
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Use Nenamark2 benchmark. It's powerful that it doesn't hit the 60fps. Tegra 2 is only little bit faster than original Galaxy S. SGS2 is twice faster than SGS.
developing said:
Frankly, your opinion is uneducated. The screen of the Galaxy S II has a refresh rate of 60 Hertz, meaning the screen physically cannot display any material higher than 60 frames per second. If you uncap the software frame rate, then the CPU and GPU of the phone will work harder to render as much material as possible - let's say in this case, we have something that has 80 frames to display in a single second. Yet since the screen cannot display 80 frames per second, 20 of those frames will never be shown, and the resulting movement could even suffer from tearing because of the mismatched refresh rate and frame rate. In order to fix tearing, a technique called vertical sync is employed, which would cut frame rates to 60fps in order to eliminate the extra frames which cause tearing.
So, if we remove the frame rate cap on Samsung's version of Android, then what do we accomplish? We increase the workload on the phone's processors, increasing heat output and decreasing battery life. Rendering above 60fps will generate frames which are never shown, and will introduce visual glitches if vertical sync is not used; vertical sync, in turn, would cap the frame rate to 60fps once again. I hope this post has been helpful.
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well as u said it was an uneducated question and thank u for explaining to me the reasons why it would not be wise to even attempt a mod like this.
developing said:
Frankly, your opinion is uneducated. The screen of the Galaxy S II has a refresh rate of 60 Hertz, meaning the screen physically cannot display any material higher than 60 frames per second. If you uncap the software frame rate, then the CPU and GPU of the phone will work harder to render as much material as possible - let's say in this case, we have something that has 80 frames to display in a single second. Yet since the screen cannot display 80 frames per second, 20 of those frames will never be shown, and the resulting movement could even suffer from tearing because of the mismatched refresh rate and frame rate. In order to fix tearing, a technique called vertical sync is employed, which would cut frame rates to 60fps in order to eliminate the extra frames which cause tearing.
So, if we remove the frame rate cap on Samsung's version of Android, then what do we accomplish? We increase the workload on the phone's processors, increasing heat output and decreasing battery life. Rendering above 60fps will generate frames which are never shown, and will introduce visual glitches if vertical sync is not used; vertical sync, in turn, would cap the frame rate to 60fps once again. I hope this post has been helpful.
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A doubt,from your post ... shows a relationship between the refresh rate and fps, to me it does not follow that there can be this kind of connection between things.
The frequency is the period of time that elapses between two refresh full image, or better those refresh in a unit of time, while the fps is the ability of the GPU to generate the frames FramePerSecond, I can easily have 60 Hz of frequency and 4000 fps (sbav sbav).
Am I wrong?
Going above 60fps it's like looking at 300+ ppi screen.. you won't notice any significant difference..
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Does anyone know what the screen refresh rate is for our devices? Just wondering if we'd be able to watch 3D movies on it with those 3D glasses (not the blue/red ones).
PS. I love 3D. 3DSteroid and Camera3D FTW!
Screen can do 60hz. As far as watching 3D stuff, it would have to be the coloured classes unless you could find some active glasses that paired via bluetooth and stuff, so unlikerly.
The screen of the Galaxy S II has a refresh rate of 60 Hertz, so the screen physically cannot display any material higher than 60 frames per second. If you uncap the software frame rate, then the CPU and GPU of the phone will work harder to render as much material as possible - let's say in this case, we have something that has 80 frames to display in a single second. Yet since the screen cannot display 80 frames per second, 20 of those frames will never be shown, and the resulting movement might even suffer from tearing because of the mismatched refresh rate and frame rate. In order to fix tearing, vertical sync is employed, which would cut frame rates to 60fps in order to eliminate the extra frames which cause tearing.
So, if we remove the frame rate cap on the SGS2, then what do we accomplish? We increase the workload on the phone's processors, increasing heat output and decreasing battery life. Rendering above 60fps will generate frames which are never shown, and will introduce visual glitches if vertical sync is not used.
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Regards.
..
I know that for many of you may seem a silly question, but I need your opinion in a debate with some friends
A doubt, most of people shows a relationship between the refresh rate and fps! to me it does not follow that there can be this kind of connection between things.
The frequency is the period of time that elapses between two refresh full image, or better those refresh in a unit of time, while the fps is the ability of the GPU to generate the frames FramePerSecond! I can easily have 60 Hz of frequency and 4000 fps eek:).
Am I wrong?
It's called vsync. Basically to reduce GPU load redraws are synced with the screen refresh rate. If your screen refresh rate is 60Hz, the GPU will be locked to 60FPS and no more, because you won't see the other frames anyway. But if you disable vsync, you can go up to huge FPS numbers, but you won't see all those frames.
Well one doesn't influence the other in any way physically, but ideally you want the frame rate generated by the device or system to equal or exceed your screen's refresh rate.
They are very similar in how they are calculated, refreshes per second and frames per second, so the relationship you refer to is what our "eyes" see and detect thus the frames per second should match the screens refresh rate per second.
For the best experience this day and age example:
At least 60 frames per second >= 60 refreshes per second.
-smc
http://forums.nvidia.com/index.php?showtopic=193059
thank you for your replies guys!
Out of interest, is it a 60hz screen thats in the XS?
Scratchling said:
Out of interest, is it a 60hz screen thats in the XS?
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yes
Hi,
1st off I love this phone. I am extremely pleased and have zero complaints so far. Buttery smooth too....
My Question is how is it possible that the screen resolution is adjustable? Does the display turn off pixels? Does it merge pixels? Please enlighten me..
Thanks,
Joel
I'm pretty sure it must be 'rooted' first to allow those changes.
old_fart said:
I'm pretty sure it must be 'rooted' first to allow those changes.
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Sorry even though u r pretty sure. This info is wrong. U DON'T need root. Just like samsung graxe ui. On LG V30 u go to display - screen resolution and switch between 720,1080 or qhd+.
But the OP never asked if changing resolution was possible. He most know that we can already change res in the setting. What he is asking is HOW does lowering resolution works.
Im not sure about this but from tv or any pc monitor u can upscale to max reolution of the monitor or downscale to a lower resolution. The pixel are still on but the screen is not push very hard.
Amoled are very power effecient and this has been discuss in the S8 forum for quite sometimes. After all the testing the xda members have been doing it seems that going from QHD down to 1080(full hd +). Doesnt save that much battery (around 5% better battery)
Actually I'm wondering because on a 1080p TV, when you feed it a 720p video, the TV stays 1080p. The video is just enlarged to fit the 1080p display. On the V30 I'm under the impression that the display will actually change. Kinda like having a 3 displays in 1...
jjcorral said:
Actually I'm wondering because on a 1080p TV, when you feed it a 720p video, the TV stays 1080p. The video is just enlarged to fit the 1080p display. On the V30 I'm under the impression that the display will actually change. Kinda like having a 3 displays in 1...
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U wont see a smaller screen. The screen will stretch out edge to edge but it will look very blurry if u do 720p. Not so much in 1080p mode. So u can say that the software upcales lower resolution. Just like riptide 2 which u can lower or max res in the setting of the game.
Wait, so the software downscales? You sure? Just Android or all apps too? I don't think so. How could software down scaling effect battery life?
jjcorral said:
Wait, so the software downscales? You sure? Just Android or all apps too? I don't think so. How could software down scaling effect battery life?
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The screen is cap at 60 hz. Let say u are playing a game ( this goes with the ui smoothness aswell). Since the screen is cap at 60hz means that the fps is up to 60fps max/cap At 1080p is you play a game that can reach 80fps(cause is not pushing QHD pixel) the cpu/gpu doesnt have to work has hard. So instead of doing 80fps it only have to do 60fps meaning that cpu/gpu doesnt have to work 100% since is able to maintain easily the frame per second require from the 60hz screen.
This is why the new RAZER phone with 120hz screen can do 120fps.
Now if u increase the screen to qhd (1440p+). The same game with higher resolution the frame rate will be much lower. Now. The game probably is reaching 55fps instead of 80fps max (is an example). The screen is 60hz (60fps). So the cpu/gpu is gonna be working 100%. Much harder cause is trying to reach 60fps but it cant. Which equals more power comsuption, hotter device and also cpu/gpu throlling cause of the heat.