[Q] Decrease Resolution for Gaming? - Xperia Tablet Z Q&A, Help & Troubleshooting

Hello Tablet Z community,
This is my first post in this devices forums since getting mine last week. It's a great device, love it, etc.
I've never owned an Android device with a screen resolution this high so I've yet to encounter this problem - some of my games (specifically the emulator PPSSPP) have relatively low framerates (compared to my less powerful Samsung P6810 @ 800x1280). I know with computers in particular it's trivially easy to change resolutions in games/the OS, especially to increase FPS but I've never seen a method to do this on Android and Google searches turn up people mentioning device resolution without changing them.
Does anyone know if it's possible to, ideally, force a different resolution for a particular application? A less than ideal solution would be a system wide change but I would be willing to endure temporarily to increase FPS.
Any advice and suggestions would be greatly appreciated

I would be interested to know about this, iv just loaded ppsspp however havent been able to play any of the playable games listed, I did see a few videos of the xperia z playing well, however that has the same resolution and specs.

juzza87 said:
Does anyone know if it's possible to, ideally, force a different resolution for a particular application? A less than ideal solution would be a system wide change
Any advice and suggestions would be greatly appreciated
Click to expand...
Click to collapse
That was recently discussed in this thread: LCD Density Changes and Results (With Pics)

Cat McGowan said:
That was recently discussed in this thread: LCD Density Changes and Results (With Pics)
Click to expand...
Click to collapse
This is very different, setting the DPI to a non-stock value just resizes the userspace, the resolution is fixed and unchangeable as the OP is thinking. Compared to a Windows PC where you can change the resolution, in Android you only have the ability to change the dpi, which states how large the pixel-to-screen size is. A smaller number indicates a smaller pixel-to-screen size, meaning the information shown on screen is sized for a laeger screen (making it smaller, since the screen is a fixed size). And a larger number has the reverse effect. Android UI guidelines set the optimal dpi for resolution vs. screen size, to mainain a similar experience across devices (similarly sized icons and fonts, etc). Again, this has nothing to do with adjusting the physical resolution of the device, which (to my knowledge) is not possible in Android.

daveid said:
This is very different, setting the DPI to a non-stock value just resizes the userspace, the resolution is fixed and unchangeable as the OP is thinking. Compared to a Windows PC where you can change the resolution, in Android you only have the ability to change the dpi, which states how large the pixel-to-screen size is. A smaller number indicates a smaller pixel-to-screen size, meaning the information shown on screen is sized for a laeger screen (making it smaller, since the screen is a fixed size). And a larger number has the reverse effect. Android UI guidelines set the optimal dpi for resolution vs. screen size, to mainain a similar experience across devices (similarly sized icons and fonts, etc). Again, this has nothing to do with adjusting the physical resolution of the device, which (to my knowledge) is not possible in Android.
Click to expand...
Click to collapse
Heh. Thanks for the schooling, but it was unnecessary, I didn't just fall off a turnip truck.

Thanks for the replies guys, at least now I know for sure..

Related

is it possible to change resolution on my viewsonic tablet?

Hi All,
I currently own a viewsonic vpad 10s tablet. It's currently on 1024x600.. is it possible to have a software hack or other to change the resolution to 1280x like the xoom?
The short answer is no.
The longer answer is...kind of.
https://market.android.com/details?id=com.beansoft.lcd_density_changer&feature=search_result
BK553 said:
The longer answer is...kind of.
https://market.android.com/details?id=com.beansoft.lcd_density_changer&feature=search_result
Click to expand...
Click to collapse
OK, and now the even longer answer.
There is no way to increase the resolution to 1280 x 800. Our display is an AU OPTRONICS B101AW06. Look it up on the net & you'll find max resolution is 1024 x 600. What BK553 is speaking about is a change in text DPI. You can see this in Windows where you can change the DPI. Manufacturers normally set the DPI to give the user the best readability but not necessarily the highest DPI. If you change the DPI, text & icons will become smaller (or larger depending on if you increase or decrease the DPI). To see what effect LCDDensity Changer may have, see the attached picture. Icons are smaller & text is smaller, giving the illusion of higher resolution. Notice how the backbround is the same while the text & icons are smaller.
Again, you can not change the resolution...videos, pictures etc will always displayed at a max resolution of 1024 x 600.
By the way, check this post http://forum.xda-developers.com/showthread.php?t=864338&highlight=lcd and you will see that atleast in Dec 2010 there used to be a field in build.prop that you could change to change the DPI. I looked for it in mine (I'm running Calkulin+Clemsyn Combo v6) and that field no longer appears.
hatorihanzo said:
Hi All,
I currently own a viewsonic vpad 10s tablet. It's currently on 1024x600.. is it possible to have a software hack or other to change the resolution to 1280x like the xoom?
Click to expand...
Click to collapse
I use blade and spare parts to tweak the dpi. don't think you can get up to 1280 with any software though.

[Q] Zoom level on FHD devices, not the same as in a FHD laptop. Why?

I wish I could get some clarification from the experts here.
Sorry if I didn't pick the most suitable forum to raise my question.
With displays resolution increasing on high-end android phones (now FHD) and some tablets too, I'd expect the browsers to take advantage on that.
Although this is some thing where I can't see any progress even with the newest hardware.
The same webpage as seen on a FHD laptop, or on a FHD smartphone, doesn't show the same thing.
The minimum zoom for a smartphone seems to be set in such away that a significant part from pages with most content is cut, in respective to what's seen on a FHD laptop.
Some could argue that once the smartphone screens are much smaller, it doesn't make sense to have same zoom level settings as it won't be readable. Although smartphone screens are getting bigger, and many tablets have big enough displays to show it in a different and still readable way...
Furthermore in many cases if you turn a smartphone in portrait or landscape you can see exactly the same content displayed wide-wise, which doesn't make any sense.
Landscape mode could make better use of the larger horizontal display resolution and show additional content.
I've tried many browsers on Android, but all seem to show the same limitations and no settings to decrease the default zoom level, neither it is possible to manually zoom-out further in any way.
Does anyone knows if this is an Android OS limitation and when this foreseen to improve, or if there is some browser that gives further control on the minimum zoom level?
I should say this has been the main reason why I've not seen a justification to change my device for a new one with better HW and larger screen...
The browsers on my qHD device, show exactly the same thing as the newest FHD ones.
Thanks in advance!

Resolution decreased to HD - weird UI elements

Hi to all!
Well I've read some guides about how to decrease the resolution on my Z2 running latest Marshmallow Existenz ROM 5.6.5. Changed resolution to 720x1280 and system DPI to 253 (I have rather a good eyesight that is why do not mind small UI elements ).
Some apps were not satisfied with the DPI I told them to work in that is why I tailored some of them using Xposed module App Settings.
But there are some issues I could not repair :crying::
1. The bootanimation displays normally, but after some seconds only half of the screen is filled (so it says ''Xpe'' and then ''Existe''). Tried to install smaller (720x1280) bootanimation but the result is the same. I can live with that
2. The Recents' thumbnails are enormous. Even 1/5 of the app is displayed in the thumbnails. I thought initially that it is caused by SystemUI's messed settings with the DPI so I played with App Settings to repair it (both ''DPI'' and ''Screen (dp)''). Still with no luck.
Thought it might be connected somehow to Android WebView which is operating in country's local app with used stuff called Finn. There the thumbnail is also really huge, before the whole picture would fit in the thumbnails.
3. Is the suggestions/xperia menu search. The ''suggested'' apps are much bigger that the icons displayed in menu.
So it might be some scalling issue, but I have no idea which application would I need to adjust.
https://postimg .org/image/53me7e9i9/
https://postimg .org/image/5uf4d6bvl/
https://postimg .org/image/wtiz8bych/
https://postimg .org/image/dcy9lt38h/
https://postimg .org/image/ku7h10srl/
My phone is running Android 6.0.1, with root, with xposed modules related to UI: AppSettings, GravityBox, Xperia Home by Serajr
Any help in the matter will be appreciated! ::laugh:
Vixificent
No one ? - I don't believe no one really had that issue! At least say: 'Happens to me too'.
Keep it hd 1080x1920 and change DPI to 320
Sent from my D6503 using XDA-Developers Legacy app
Thank you for your input! However it is not the solution I am looking for. I just wanted to have lower resolution for a better performance. I am I the only one who is meeting such issues?
Vixificent said:
Thank you for your input! However it is not the solution I am looking for. I just wanted to have lower resolution for a better performance. I am I the only one who is meeting such issues?
Click to expand...
Click to collapse
I tried it and got the same like you.
Sent from my D6503 using XDA-Developers Legacy app
I reduced my resolution to 540x960 and set the dpi to 240. Performance and battery life felt largely the same. Graphics were mostly unaffected except for weird glitches like the ones mentioned in the OP (walkman aka music would straight up stop working though). Text looked blurry, perhaps a subpixel rendering thing.
At the end I returned to 1080p. It was not worth tickling my OCD for little to no benefit.
Thank you for your replies! Wow Pixelado, your resolution was pretty low. Beacause no newer Xperia has that resolution, the Sony apps could cease to work. I wanted to keep something still lower yet 'compatible'.
Yes the performance is pretty much the same. Antutu did not gave a higher score, even gave a lower on CPU and higher on 3D a bit. What I noticed was after playing 3D game for around 20 mins the temperature was around 53C, before in 1080x1920 it was over 61C (in a thin rubber cover). What are your observations?
Best regards,
Vixificent
I came back to 1080p as suggested. Thanks! :good:

Is There a Way to Increase the Camera DPI In the Camera Settings?

As the title suggests, I'm curious as to a way to increase the DPI for the camera app to increase the quality of photos taken (when zooming in on a crop of a photo). I remember from my Note 3 that there used to be a way to change the quality of the photo (best, better, etc.) which was a way of changing the DPI for the photo taken.
Even if there's a way to do it with root (say by modifying the build.prop file), any advice would be great!
As an alternative, is there a camera app that allows for you to change the DPI and fully utlize the camera hardware? I used to use Camera Zoom FX (Premium) but it didn't play nicely with some of the phones (namely Motorola) that I have used that app on.
Thanks for the tips, help, guideance, etc.!
Not sure what you mean, you can set up to 20mp in the settings. Thats even more than the rgb sensor is capable of. I guess this upscales the rgb sensors color info to the 20mp picture the monochrome sensor is taking. I cant think of anything that Would utilize the hardware more
rob.allen78 said:
As the title suggests, I'm curious as to a way to increase the DPI for the camera app to increase the quality of photos taken (when zooming in on a crop of a photo). I remember from my Note 3 that there used to be a way to change the quality of the photo (best, better, etc.) which was a way of changing the DPI for the photo taken.
Even if there's a way to do it with root (say by modifying the build.prop file), any advice would be great!
As an alternative, is there a camera app that allows for you to change the DPI and fully utlize the camera hardware? I used to use Camera Zoom FX (Premium) but it didn't play nicely with some of the phones (namely Motorola) that I have used that app on.
Thanks for the tips, help, guideance, etc.!
Click to expand...
Click to collapse
highest quality you can do is raw in pro mode. you can later decide in what quality you compress it to jpeg
0alfred0 said:
Not sure what you mean, you can set up to 20mp in the settings. Thats even more than the rgb sensor is capable of. I guess this upscales the rgb sensors color info to the 20mp picture the monochrome sensor is taking. I cant think of anything that Would utilize the hardware more
Click to expand...
Click to collapse
I saw the 20MP option but that's not what I'm referring to Some camera apps or phone makers allow for you to change the quality of the picture taken in the form of changing the DPI. The higher the number, the higher the quality of the picture when looking at a 100% crop of a photo (but also the file size tends to be larger too). I know it's not common, but it is there for some camera/OEMs.
rob.allen78 said:
I saw the 20MP option but that's not what I'm referring to Some camera apps or phone makers allow for you to change the quality of the picture taken in the form of changing the DPI. The higher the number, the higher the quality of the picture when looking at a 100% crop of a photo (but also the file size tends to be larger too). I know it's not common, but it is there for some camera/OEMs.
Click to expand...
Click to collapse
I dont quite understand what that means though from a technical viewpoint. I am not an expert but i roughly know how cameras work and what parts they are made of (keywords: sensor/pixel size, sensor resolution, bayer matrix, etc.). I never came across something called DPI. I also do not know what should be happening when increasing this DPI.
Maybe you can enlighten me. Although this does not seem to be a feature for the Mate 10 i am very much interested in learning about cameras, especially in mobile devices.
0alfred0 said:
I dont quite understand what that means though from a technical viewpoint. I am not an expert but i roughly know how cameras work and what parts they are made of (keywords: sensor/pixel size, sensor resolution, bayer matrix, etc.). I never came across something called DPI. I also do not know what should be happening when increasing this DPI.
Maybe you can enlighten me. Although this does not seem to be a feature for the Mate 10 i am very much interested in learning about cameras, especially in mobile devices.
Click to expand...
Click to collapse
I had to research this a bit myself so that I could properly convey what I was originally asking for
This article from Snap Shop eCommerce helped quite a bit:
A Simple Introduction to DPI
(apparently, it's only useful if I intend on printing any of the photos taken from the camera itself)
I had a note 2 and a note 4 until just recently. I know the setting your talking about. Its got nothing to do with DPI - its more a compression setting/sharpening setting affects how big the filesize is from your camera as it affects how much each photo is compressed (was listed as "quality" modes? from memory)
Yep that's my understanding too - it's basically like 'fine' or 'superfine' settings on point n shoot cameras - dictates how much the JPG file is compressed. FWIW my Note 4 on Marshmallow seems to have dropped the setting, along with most other phones in the last few years. You just get the default compression for photos and bitrate for videos. As @madman_cro noted, you can make sure you're getting 100% of what the sensor is capable of by shooting RAW and doing the JPG processing yourself. Gotta love it when they remove settings so as not to confuse the average user....
I got a note 4 infront of me and went looking for the setting as well and couldnt find it either your right it must of got lost in a update hahahhaha (my boy has my note2 somewhere) but yeah its exactly what your saying with the fine/superfine etc more a compression setting than anything else
iv had lot's of phones(with custom and stock rom) and while I've never seen dpi settings it may have benefit for printing. as from what iv read now that you got me interested 72 is apparently enough for our screens and our phone delivers 92 so we are ok. il try to convert raw to higher dpi later and try it in phone while zoomed in but i doubt il see the difference cause its basicly the same image
Usual DPI is 72 at jpg photo at real cameras, if you shot in RAW usual DPI is 300, i think at mirrorless is even less.
better/higher DPI is because of post processing , higher dpi more details. Just simple, if you want better phots shot in RAW .
RAW or not makes no difference - the dpi stays the same,.
The DPI of a printed photo can be affected by the resolution the photo was taken at and the size of the printout (think about it...dots per inch.....or pixels per inch on photos really...DPI is more a printer thing. RAW has nothing to do with the amount of pixels/resolution - and therefore doesnt affect DPI whatsoever as its still exactly the same amount of pixels+ resolution involved whether its in RAW format or not...... All RAW means is that the photo was outputted without any editing by the camera first - its a unmolested original image with no processing which allows for a human to do all the editing later and perhaps a better job of it)
Take a 1 megapixel photo and print that photo on A4 paper, now take a 20megapixel photo and print it on a4 paper. The higher resolution image is going to have a higher DPI on the printout than the lower resolution image does, and would be noticeable as chances are the 1megapixel had such a low dpi at the printout size the image was stretched to fit. Take a 20megapixel RAW image, and a 20megapixel normal image - DPI is exactly with both as it has nothing to do with RAW.
What it all comes down to....Stay on the highest setting you can for resolution, and you have the best chance of getting a good printout later on and being compatible with bigger printouts while still keeping clarity (higher resolution photos can be printed larger without loss of quality)
I wouldnt try and make a poster from a 2 megapixel photo for instance - as it just doesnt have enough resolution to keep a good DPI **when the image is printed** The earlier question by the OP has been answered - it wasnt a DPI setting on her note at all its a compression setting (eg fine/superfine) nothing to do with DPI and has no effect on it either.
Thats kinda it in a nutshell and dumbed down a bit to explain it easier (Im gunna get nit picked to death on technicalities of terms perhaps but im trying to keep it simple)

Is there a way to change resolution on this device?

I have just bought 10.8 version and I like it, but was really surprised to find out there is no way to change resolution like for example in this video (I am not allowed to post links, but you can search it on youtube under the name: How to Change Screen Resolution in HUAWEI P20)
Is that a bug of some kind and we may hope that this feature will be introduced in some later EMUI updates?
With developer options enabled you can set a custom DPI, effectively changing your resolution
This method doesn't actually change resolution, just the size of the icons, text etc. You can try and check it yourself with some app like CPU-Z for example.
The only option I found is using ADB commands like "wm size 1200x1920" and "wm density 209". This does truly change resolution and sets appropriate DPI for this resolution at 10.8 display size. Needless to say that this method is cumbersome and besides that DPI value has to be reapplied after each reboot, otherwise it resets and homescreen looks messed up.
But yes, when set correctly to 1200x1920 and 209 DPI it looks good and what's more important games run a lot faster.
So why would Huawei remove the option (which is already present in EMUI 8) to easily change resolution specifically for our device is beyond my understanding.
And here is reply from Huawei support:
Thank you for contacting Huawei. We widely appreciate your preference and we thank you for your email.
Regarding to what you kindly shared to us, we appreciate that you point out this issue, we kindly inform you that your screen resolution is unable to be modified unless it is done through a third party application. Due to this, we have forwarded your request to our Research and Development department. Receiving your feedback and inquiries means a lot to our company, since our only way to improve is through acknowledging our customer's experiences.​
Yeah it doesn't change the resolution but your command shouldn't either because the same amount of pixels is used. Changing the resolution is basically only possible with amoleds (which we don't have) because single pixels can be disabled.
So that's probably the reason why the huawei p20 has it and we don't. As for what you are doing it should be the same as changing dpi. Grouping small physical pixels to one bigger virtual pixel, decreasing the amount of different content the tablet has to render and therefor making the tablet run faster.
I was able to set my screen res to something else using a third party app on my note 2 (amoled) but not anymore on the LG g5 (ips LCD)
Hope what I'm trying to say is understandable.
lolmensch said:
Hope what I'm trying to say is understandable.
Click to expand...
Click to collapse
Hehe, my honest answer is not quite. But I would appreciate if you could tell me which DPI should I set in Developer Options to get the same effect as I am getting with "wm size 1200x1920" and "wm density 209" in terms of speed gain and homescreen look (not distorted or messed up, etc).
Edit: Tried changing DPI only without changing resolution today. Result: no speed gain in any games I played.
I'm using this app to change resolution and dpi.
https://play.google.com/store/apps/details?id=com.farmerbb.secondscreen.free
It required root access (I'm using magisk). But author said that it just need adb access for those don't have root. Works brilliantlu on my M5 8.4.
oldpoem said:
I'm using this app to change resolution and dpi.
https://play.google.com/store/apps/details?id=com.farmerbb.secondscreen.free
It required root access (I'm using magisk). But author said that it just need adb access for those don't have root. Works brilliantlu on my M5 8.4.
Click to expand...
Click to collapse
For the M5 8.4, what did you set things to?
Ivanbarker said:
For the M5 8.4, what did you set things to?
Click to expand...
Click to collapse
I created 2 profile. One for casting to TV , other for lower resolution.
Ivanbarker said:
For the M5 8.4, what did you set things to?
Click to expand...
Click to collapse
As far as I undertand to avoid distortion for your 8.4in it should be something like 1920x1200 and 270 DPI.
Though again, as far as I understood, you can play with DPI as much as you like, it doesn't influence game speed or battery drain like resolution does.
oldpoem said:
I'm using this app to change resolution and dpi.
https://play.google.com/store/apps/details?id=com.farmerbb.secondscreen.free
It required root access (I'm using magisk). But author said that it just need adb access for those don't have root. Works brilliantlu on my M5 8.4.
Click to expand...
Click to collapse
Thanks, I am going to check out this app. The problem is that I don't want to root my M5 in order not to void the warranty. So going to try the ADB way and hope permissions will not reset after reboot.
the_zealot said:
Thanks, I am going to check out this app. The problem is that I don't want to root my M5 in order not to void the warranty. So going to try the ADB way and hope permissions will not reset after reboot.
Click to expand...
Click to collapse
After you've lowered your resolution from stock 2560x1600, do you find better battery life?
EDIT: Also if I want to change it back to normal, do I jsut change the resolution back to 2560x1600 and 359 dpi?
Ivanbarker said:
After you've lowered your resolution from stock 2560x1600, do you find better battery life?
EDIT: Also if I want to change it back to normal, do I jsut change the resolution back to 2560x1600 and 359 dpi?
Click to expand...
Click to collapse
I have not been using this tablet long enough to notice major difference in battery drain from changing resolution. I was mostly interested in speed gain in games. But from the fact that there is an option in Settings menu to automatically lower resolution to save battery, I conclude that there must me some (albeit a small) advantage in overall power consumption when using lower resolution.
And yes, to get back your native resolution and DPI, I guess you can either use ADB commands "wm size reset" and "wm density reset", or just set 2560x1600 if you are doing it through an app. As for DPI, it depends on which display settings you use in the Settings menu (large, small, etc.) but the default (factory) one seems to be 480. All this Resolution-DPI stuff seems to be very confusing as for me.
the_zealot said:
And yes, to get back your native resolution and DPI, I guess you can either use ADB commands "wm size reset" and "wm density reset", or just set 2560x1600 if you are doing it through an app. As for DPI, it depends on which display settings you use in the Settings menu (large, small, etc.) but the default (factory) one seems to be 480. All this Resolution-DPI stuff seems to be very confusing as for me.
Click to expand...
Click to collapse
Thanks! I was unaware you could reset it like that!

Categories

Resources