[Q] Why change DPI? - General Questions and Answers

I know this has been asked, but the answer I've yet found aren't very clear: What are the pros and cons of changing dpi? Why are people going against such trouble for it?
To me DPI is a synonym of resolution: getting a better resolution is impossible on a fixed screen, and going for a lower one just seems usefull on a PC when you need better framerate

matmat07 said:
I know this has been asked, but the answer I've yet found aren't very clear: What are the pros and cons of changing dpi? Why are people going against such trouble for it?
To me DPI is a synonym of resolution: getting a better resolution is impossible on a fixed screen, and going for a lower one just seems usefull on a PC when you need better framerate
Click to expand...
Click to collapse
So, you guys all do it but you don't know why?

Related

[Q] The Milestone 2 can capture 720p video, how can I on my D2G?

After much searching on this forum and many others, I am still unable to discern if there is a method available to achieve video capture at 720p with my Droid 2 Global.
If I have understood correctly the pages-upon-pages of discussion and product specifications that I've read through in search for an answer, a mobile phone's ability to record HD video depends on the specification of its processor.
The facts seem to be that the D2G is technically capable of recording 720p video, whereas the vastly more popular Droid 2 is not, by nature of their differing processors.
The D2G's "TI OMAP3630-1200" processor, as stated by Motorola's Developer web page, is identical to those of the Droid X and Milestone 2 (the Euro-market version of the Droid 2) in all but its clock speed, "TI OMAP3630-1000." Both the Droid X and Milestone 2 are capable of capturing 720p video.
I am merely an enthusiastic user of my phone, and have never even dabbled with development. Yet it seems to me, given the many other 'miracles' I've witnessed accomplished on these phones, that there certainly must be a member of this assuredly knowledgeable forum that can offer me either an explanation as to how I can capture 720p video with my D2G, or at least why it will never be possible as it is with a Milestone 2.
Thanks very much; I'm waiting with bated breath for a reply.
-Benjamin
It can also be limited by the camera sensor, which I believe is the case with the d2g
Sent from my DROID2 GLOBAL using XDA App
Thanks very much for your prompt input. I do appreciate greatly any suggestion that might ultimately give me the answer I desire.
However, I must admit, without any data sheet to prove that the image sensors used in the Droid 2 Global and Milestone 2 are in fact different (and believe me, I've searched... and searched for such specific device information), I find this suggestion to be less than satisfying an answer as to why I cannot capture 720p video with my D2G.
In fact, I'm lead to believe by Motorola's Developer Website that the image sensors used in each the Milestone 2 and Droid 2 Global are identical (as is most all of the componentry used in the phones), by nature of there being no differences in the six lines of specifications listed under the "Camera" category on each of the phone's spec sheets. It's unfortunate Motorola has not seen fit to post the precise specifications of the sensors themselves.
And so I implore this knowledgeable community to yet point me in the correct direction of a satisfying answer--whether proving the image sensor in my D2G is different than that of a Milestone 2 and isn't technically capable of capturing 720p video, or providing me with a more positive solution.
many thanks,
Benjamin
I am curious a well. Developers pay little attention to such a great phone
I believe it has a lot to do with the hype. Droid X, Original Droid and Droid 2 get a lot more attention from Motorola and Developers. Noticed the number of ROMs for the D2G, not D2 ports. Updates roll pretty slow for the D2G as well.
Even if the D2G is capable of recording 720P videos, Motorola has to remember that the D2G exists and Verizon must approve of such updates and the company pushing out the update must not screw up.
OR XDA devs with an ugly duckling(D2G in this case), can make the very few owners of a D2G happy by finding a way to help us record 720P. Somewhat pointless at this point when everyone is targeting 1080P.
Don't you just hate how Android fragmentation makes 2-months old devices look like dinosaurs?
Rusty is correct, But there is much more than just the camera sensor involved. The Video SubSystem also has a lot to do with the ability of a camera to create trup 720P video.
It does however start with the camera sensor. the resolution of the CMOS determines the Native capabilities.
The sensor must be able to resolve enough pixels to make a true 720P (1280X720).
Anything less would not be a true 720P capture. That doesn't mean a phone could not then upconvert it to a 720P format which is what I expect the Milestone and Dx do via it's video subsystem if the cameras CMOS' are actually the same.
It's not true 720P as it really does not have the true resolution of a native 720P capture it is merely scaled to 720P by adding pixels (based on the pixels that surround it) and creating a 720P output from (ie) a WVGA capture.
Its kind of the same thing as DVD player with 1080P Upconvert does.
The DVD is really a 720 X 480 source that is scaled to 1080P but you get no extra detail from the original in that scalling.
Thanks to all who have replied thus far. Your responses have painted a clearer picture for me of what is necessary to capture 720p video in general, and why it's not currently possible to do so with the Droid 2 Global.
Asphynx:
It's not true 720P as it really does not have the true resolution of a native 720P capture it is merely scaled to 720P by adding pixels (based on the pixels that surround it) and creating a 720P output from (ie) a WVGA capture.
Click to expand...
Click to collapse
This makes sense, and I'm glad you brought this issue to light. I'd be extremely interested to know if the Milestone 2 does in fact capture video in this manner, rather than native 720p! If that is in fact the case, I'd be happy to just keep capturing in 720x480 with my D2G, and then upscale in post. (I'd imagine the superior power of a desktop's cpu, coupled with the correct video-editing software, could do a damn-sight better job of upscaling the video than a phone anyway.)
Neurotica:
XDA devs with an ugly duckling(D2G in this case), can make the very few owners of a D2G happy by finding a way to help us record 720P
Click to expand...
Click to collapse
I realize all too well that the D2G is an oft looked-over phone on the developing scene. And it's an outright shame. It's such a powerful, flexible phone; and when running the Fission 2.4.3 ROM, I find it hard to believe there's a better phone available on the market currently--to serve my needs at least.
I implore the talented developers of this forum to unlock the potential of the Droid 2 Global's hardware (if it does indeed exist) to allow video capture at 720p, using the Milestone 2 as a reference. You'd make a very happy man out of me indeed, and as it would seem, many others.
Thanks to all again for their time attending to my questions.
-Benjamin
It would be great if someone could make D2G work on CDMA and GSM network simultaneously as MOTOROLA XT800+ can (only for Chinese market).
I am looking for its radio to try it on my D2G
any ideas from your side guys?
Moved to General.
Originally Posted by Iff
Turns out 720p recording is even simpler than I thought. Assuming you're using Motorola's camera app and not the stock one, all you have to do is open /system/build.prop and find this line near the bottom:
Code:
ro.media.capture.maxres=5m
Change it to
Code:
ro.media.capture.maxres=8m
Then reboot your phone. After that, go to Settings -> Applications -> Manage Applications, find the Camera app in the All tab, force stop it if it's running and Clear Data and 720p video ready for you.
helizus said:
Originally Posted by Iff
Turns out 720p recording is even simpler than I thought. Assuming you're using Motorola's camera app and not the stock one, all you have to do is open /system/build.prop and find this line near the bottom:
Code:
ro.media.capture.maxres=5m
Change it to
Code:
ro.media.capture.maxres=8m
Then reboot your phone. After that, go to Settings -> Applications -> Manage Applications, find the Camera app in the All tab, force stop it if it's running and Clear Data and 720p video ready for you.
Click to expand...
Click to collapse
It can't be as simple as that. There is a lot more involved than just editing the build prop.
• Sent from my HD-II running HyperDroid GBX-12
Thank you very much helizus for your contribution towards solving this issue. However, I can confirm that although editing the "build.prop" as described will alter the Camera app to include menu settings that allow the selection of a option to film in "High Definition (720p)," the application will in fact crash once the Record button is pressed with the aforementioned HD setting selected. Neurotica was right to be doubtful.
Surely altering software in attempts to make use of hardware that doesn't exist is not the answer to this issue--
It may not make sense to tell a Droid 2 Global that it has the 8-megapixel camera of a Droid X in an attempt to trick it into filming in 720p, but let's be clear in understanding, that is not to say the D2G's 5-megapixel camera isn't sufficient to do the job. After all, the Milestone 2 makes do with its 5-megapixel camera.
THERE MUST BE A WAY TO FILM @720p WITH MY D2G!
...my enthusiasm to find an answer is getting the better of me. Apologies.
This answer becomes all the more frustratingly absent now that I actually have a menu on my phone depicting its elusive ability to capture video in HD.
-Benjamin
Here is the video recorded by D2G on Liberty. mediafire.com/file/dirwzhsti51r3ey/VID_20110416_162801.mp4
aa
So the reason why it worked for helizus is maybe because he is running Liberty in his D2G?
Hey everyone, I'm getting tired of being ignored on this forum so I'm asking here now. Can I run a Droid 2 Gingerbread Rom on my Droid 2 Global? I know that there's a patch out there that I can apply but, will it work or not because no one has mentioned this that I can find and I've been looking for two weeks.
I posted this question last night and have been ignored and not answered as well.
Thanks for the help any one who answers me here.
thewebsiteisdown said:
Hey everyone, I'm getting tired of being ignored on this forum so I'm asking here now. Can I run a Droid 2 Gingerbread Rom on my Droid 2 Global? I know that there's a patch out there that I can apply but, will it work or not because no one has mentioned this that I can find and I've been looking for two weeks.
I posted this question last night and have been ignored and not answered as well.
Thanks for the help any one who answers me here.
Click to expand...
Click to collapse
It is not nice to hijack others threads, but let me answer your question: no, you cannot run D2 Gingerbread on your Droid 2 global (A956).
AmCupSailor said:
Thank you very much helizus for your contribution towards solving this issue. However, I can confirm that although editing the "build.prop" as described will alter the Camera app to include menu settings that allow the selection of a option to film in "High Definition (720p)," the application will in fact crash once the Record button is pressed with the aforementioned HD setting selected. Neurotica was right to be doubtful.
Surely altering software in attempts to make use of hardware that doesn't exist is not the answer to this issue--
It may not make sense to tell a Droid 2 Global that it has the 8-megapixel camera of a Droid X in an attempt to trick it into filming in 720p, but let's be clear in understanding, that is not to say the D2G's 5-megapixel camera isn't sufficient to do the job. After all, the Milestone 2 makes do with its 5-megapixel camera.
THERE MUST BE A WAY TO FILM @720p WITH MY D2G!
...my enthusiasm to find an answer is getting the better of me. Apologies.
This answer becomes all the more frustratingly absent now that I actually have a menu on my phone depicting its elusive ability to capture video in HD.
-Benjamin
Click to expand...
Click to collapse
actually it is pretty simple just install Liberty 2.0.1 and then the romer you can find it at droidforums.net look it up around when you have those 2 things installed you dont have to touch the build.prop because you should be able to record 720p
aa
I think you are all missing the point regarding 720.
You can easily create a 720P file in any device but unless you are capturing it in that native resolution all you are actually doing is taking a low res capture and scaling it into a higher res format with none of the actual resolution of the 720P standard.
It's like up-converting an SD 16X9 video into 1080P. Sure the file shows as a 1080P file but the resolution is still Standard Def with some sides cut off and the pixels that was once one now shown as 4!
You are mixing up file format with actual resolution.
If you take a picture that has only 345,600 Pixels of resolution you can convert it to a file that displays with 921,600 Pixels of resolution but those extra pixels do not actually make the picture better! Just uses 2.6 pixels per original piece of data!
It's basically data and you can't create data that doesn't really exist.
32 is the same number in 32 Bit as it is in 64 bit. Converting it to 64 bit doesn't make it any more precise than it was as a 32 Bit integer.
It similar with what this boot.prop trick is doing.
Yes it saves a file that says it is 720P. But it;s nothing more than the standard resolution you had before in a 720 display format. It ddn't add resolution it merely doubled the same bad resolution you started with.
Look at it next to a TRUE 720P Native capture and you will see the difference.

Highres issues ?

Hello all.
My HD7 is going back to the box mostly (but not only) because it has no good navigation app yet, and I need it a lot.
I'm on my way to get a Sensation (even if SG2 is very interesting for a number of reasons), and I was wondering if the new resolution of 540 x 960 could cause some kind of issue with existing apps.
I mostly use iGo, which comes in different versions for different resolution up to 800x480, so I'm afraid that this (or other applications like Sygic, Ndrive or Navign) cannot yet be used with higher resolutions.
Thanks
S
sandrinopi said:
Hello all.
My HD7 is going back to the box mostly (but not only) because it has no good navigation app yet, and I need it a lot.
I'm on my way to get a Sensation (even if SG2 is very interesting for a number of reasons), and I was wondering if the new resolution of 540 x 960 could cause some kind of issue with existing apps.
I mostly use iGo, which comes in different versions for different resolution up to 800x480, so I'm afraid that this (or other applications like Sygic, Ndrive or Navign) cannot yet be used with higher resolutions.
Thanks
S
Click to expand...
Click to collapse
I use Copilot and there doesn't appear to be a problem with that scaling on the Sensation.
On my galaxy tab which has a higher resolution I have both Copilot and Ndrive and they work fine as well so I think you'll be ok.
Have a look in the tab forums, you may get your answer there.

Post your native resolution [1920*1920] wallpapers here

Weird format, but there you have it. The default launcher forces you to crop the wallpaper for both landscape and portrait, so it has to be 1920*1920 to remain native, and the corners get cropped out.
Post yours!
I'm using one from the gallery that comes with the Infinity - the one with a stone in water, see http://forum.xda-developers.com/showpost.php?p=28872415&postcount=3
ZankerH said:
Weird format, but there you have it. The default launcher forces you to crop the wallpaper for both landscape and portrait, so it has to be 1920*1920 to remain native, and the corners get cropped out.
Post yours!
Click to expand...
Click to collapse
Are you sure? Native for 1280x800 is 1408xsomething. Is the 700 a different wallpaper system?
Sent from my 3d porn machine.
jdeoxys said:
Are you sure? Native for 1280x800 is 1408xsomething. Is the 700 a different wallpaper system?
Sent from my 3d porn machine.
Click to expand...
Click to collapse
I was thinking the exact same thing. According to http://forum.xda-developers.com/showthread.php?t=1766025 the wallpapers that come with the device are all over the place resolution wise, but they're much higher than 1920x1920. There is an ideal resolution, but at this time I dont think anyone knows what it is.
Perhaps if someone could get the wallpapers included on the Acer A700, if they're consistent they'd give us an exact resolution to look for.
Edit: Looked through an A700 firmware image, most of theirs are the 1920x1408 resolution used on 160DPI tablets. There's one 2048x1920 resolution one, but that cant be correct since the aspect ratio is wrong.
jdeoxys said:
Are you sure? Native for 1280x800 is 1408xsomething. Is the 700 a different wallpaper system?
Sent from my 3d porn machine.
Click to expand...
Click to collapse
The TF700 has a screen resolution of 1920*1200. The wallpaper has to be cropped in a cross-pattern so it fits in both portrait and landscape. The minimal resolution that allows this without stretching the image is 1920*1920, which is also the resolution at which the image is displayed pixel-for-pixel.
ZankerH said:
The TF700 has a screen resolution of 1920*1200. The wallpaper has to be cropped in a cross-pattern so it fits in both portrait and landscape. The minimal resolution that allows this without stretching the image is 1920*1920, which is also the resolution at which the image is displayed pixel-for-pixel.
Click to expand...
Click to collapse
That would be the case if this were an iOS, webOS or WinRT tablet. However, Android tablets have scrolling wallpapers. As such, it'll still be stretched.
According to my (possible inaccurate) calculations, if the 700 uses the same wallpaper system as the prime and 800p tablets, the default res should be 2880x2112. This was calculated using the 1920x1408 resolution of 800p tablets. Not sure if correct though.
jdeoxys said:
According to my (possible inaccurate) calculations, if the 700 uses the same wallpaper system as the prime and 800p tablets, the default res should be 2880x2112. This was calculated using the 1920x1408 resolution of 800p tablets. Not sure if correct though.
Click to expand...
Click to collapse
I came to the same conclusion, but didnt post it because my Infinity hasnt arrived yet and thus I cant actually check that fits. Not to mention its difficult to find good wallpapers in that resolution right now.
Jotokun said:
I came to the same conclusion, but didnt post it because my Infinity hasnt arrived yet and thus I cant actually check that fits. Not to mention its difficult to find good wallpapers in that resolution right now.
Click to expand...
Click to collapse
I suppose you could use macbook retina wallpapers. Apple's marketing is excellent so lots of people should have them which generates lots of wallpapers.
jdeoxys said:
I suppose you could use macbook retina wallpapers. Apple's marketing is excellent so lots of people should have them which generates lots of wallpapers.
Click to expand...
Click to collapse
That thought crossed my mind too, but I believe they're only 2880x1800 so it'd be a bit stretched. At this point, it might be best to just find a larger resolution image and crop it to 2880x2112.
OK, last night I said I would go on /hr/ to get some massive wallpapers. Anyways, here they are after someone so RUDELY deleted/censored my post.
http://www.mediafire.com/?axdynlnio5ah5ug
They are all above 2880x2112. You guys should check out /hr/ sometime, they have some really massive images there. Also, yes, there is some weeaboo stuff in there, but most of it is just landscapes, other art or photos.
Thanks for the pack!
Jotokun said:
That would be the case if this were an iOS, webOS or WinRT tablet. However, Android tablets have scrolling wallpapers. As such, it'll still be stretched.
Click to expand...
Click to collapse
TF700 doesn't have scrolling wallpapers.
You guys should check out /hr/ sometime, they have some really massive images there. Also, yes, there is some weeaboo stuff in there, but most of it is just landscapes, other art or photos.
Click to expand...
Click to collapse
>implying I don't
ZankerH said:
Thanks for the pack!
TF700 doesn't have scrolling wallpapers.
>implying I don't
Click to expand...
Click to collapse
You've gotten your 700 already? Confirmed no scrolling wallpapers? In that case, I'll be upping my huge 400 mb 1920x1200+ wallpaper folder. Thanks for the info.
>implying implications
jdeoxys said:
You've gotten your 700 already? Confirmed no scrolling wallpapers? In that case, I'll be upping my huge 400 mb 1920x1200+ wallpaper folder. Thanks for the info.
>implying implications
Click to expand...
Click to collapse
If the wallpapers indeed dont scroll, then the OP is correct and you need 1920x1920 to cover when the device is in portrait.
I just received mine and am in the process of ricing it. The stock launcher does not scroll but I installed apex, for ricing purposes, and that does scroll the wallpapers. However, the gallery cropper does this weird overshooting thing, so I still don't know what the resolution should be.
Does anybody know the correct resolution for the tf700? Or an app that crops higher resolutions good?
For a milionth time ... Walpaper Wizardrii
I read it in the morning but somebody complained about it in another thread, so I decided to ask
Didn't do any wizardry for me.
d14b0ll0s said:
Didn't do any wizardry for me.
Click to expand...
Click to collapse
neither did it for me. on any of my devices...

Game Resolution

Hi. I just bought a galaxy s6, and I notice that the resolution in some games (Real Racing 3) is really low, even with the 1440p display. Is there a way to change to a higher resolution? And no, there is no way to do it in the game, I have tried. And also, I don't have root and I'm not planning to root it in the future.
And the Game Tuner app by Samsung is not supported s
ulriks9 said:
Hi. I just bought a galaxy s6, and I notice that the resolution in some games (Real Racing 3) is really low, even with the 1440p display. Is there a way to change to a higher resolution? And no, there is no way to do it in the game, I have tried. And also, I don't have root and I'm not planning to root it in the future.
Click to expand...
Click to collapse
Use 'graphics settings' it's an app and it is available on playstore..
Tarun891 said:
Use 'graphics settings' it's an app and it is available on playstore..
Click to expand...
Click to collapse
It didn't change the resolution. App didn't work
ulriks9 said:
It didn't change the resolution. App didn't work
Click to expand...
Click to collapse
Real racing 3 just has crappy resolution on every phone and you cannot change it. At least were the only ones that play it at 60fps at least
crzykiller said:
Real racing 3 just has crappy resolution on every phone and you cannot change it. At least were the only ones that play it at 60fps at least
Click to expand...
Click to collapse
True bro, true
the developers should work on improving its resolution.....if the S6 had 1080p it would look better.....because when you have a bigger resolution the picture have to expand to the full resolution....i think...

[MOD] Change your resolution to QHD! For Oneplus 3/3T

Hello, to all.
First of all this will not brick your device but I highly suggest to make a nandroid backup to begin with and I am not responsible if anything goes wrong. If you soft brick or hard brick your device i am not responsible.
I only tested this app on the Oneplus 3 and 3T
This is an app that REQUIRES ROOT! Sorry for anyone who isn't rooted :crying:
It does work, but be warned that you should not mess around with is app like changing resolution from 1080p to 1440p then 720p.
I used this app myself and i changed my resolution to QHD, it seems to work and it has little affect on my battery life.
I have tried other apps but they don't work as intended.
I used device info apps and all of them said that my display has 1440 x 2560 resolution which is not suppose to happen
I hope this helps especially to the ones who want a higher resolution display
The purpose of this app is to change the build.prop of your resolution and pixel density.
You've gotta be joking ...
Sent from my ONEPLUS A3003 using Tapatalk
Just try it. It works for me and i got no problems. QHD display and Dolby Atmos, great combination
Resolution is a hardware thing... You can never change it. The app just fools by changing maybe build.prop and nothing else and that's why they show quad hd display in applications you use.
Either way it's still awesome that you have *QHD Even though it doesn't really have QHD.
This litterally.just made me spit my drink out with laughter.
Congratulations man, you made my night :good:
I can turn mine I to a Galaxy S8 too by getting a launcher and changing build.prop settings too
can you make my display HDR too please?
LOL
fp1707 said:
LOL
Click to expand...
Click to collapse
Is it possible to change the resolution down to HD? I want it for Gaming. Less Usage = Smoother Gameplay?
April Fools came late maybe
April Fool's Day was almost 2weeks ago.
You must be joking. The hardware is FHD. haha even if you play QHD, you won't get QHD cause the screen does not have the extra pixel for it.
Thread closed.
Cheers,
Magnum_Enforcer
FSM

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