[Q] Faking display resolution for Cocktail Flow - Android Q&A, Help & Troubleshooting

Hey there,
Cocktail Flow is probably the one and only good looking cocktail app for tablets out there. However, its developer really hardcoded the resolution to 1280x720 which means it cannot be used on any newer tablet (like a Nexus 7, see screenshot). And since the developer abandoned the project, this app is probably gone forever.
Is there are way to reduce the resolution of tablets (or faking a lower one) such that the app is stretched and can be used again?
I've already tried Xposed + App Settings, but changing the DPI doesn't help, since the developer is not using dp...

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[Q] Decrease Resolution for Gaming?

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
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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.
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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..

[Q] Change screen resolution on app launch (and change back on exit)

I am attempting to play a very old game that only works on a very particular set of screen resolutions on my modern Android devices. The game does not scale at all and is completely unplayable without changing the resolution to one that is supported (the only one I can get to work correctly is 320x480) I have gotten this game to work using an app called NOMone Resolution Changer from the Play Store, but it is a pain to change the resolution (really screwing up the UI), launching the app, then getting out of it when I want to quit, and changing the resolution back. What I am wondering is if there is some way to make it so that when I launch the app, it will change the resolution, and then launch the app, and when I close the app, it will change it back. I am quite skilled with Android and Linux so I am willing to try anything. My device is rooted running KitKat.

4:3 aspect ratio in apps

Many apps on Android (games in particular) have been optimized for a 16:9 layout. In most cases, the same app adapts well enough when running 16:10 on a tablet without requiring a separate tablet-optimized version of the app, but how will this work now with a more dramatic aspect ratio difference of 4:3? Will developers have to update their apps for compatibility with Nexus 9, or will the Android framework facilitate them automatically adapting to an iPad-style 4:3 layout without requiring an app update?
thomase00 said:
Many apps on Android (games in particular) have been optimized for a 16:9 layout. In most cases, the same app adapts well enough when running 16:10 on a tablet without requiring a separate tablet-optimized version of the app, but how will this work now with a more dramatic aspect ratio difference of 4:3? Will developers have to update their apps for compatibility with Nexus 9, or will the Android framework facilitate them automatically adapting to an iPad-style 4:3 layout without requiring an app update?
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apps should automatically adjust
Openttd will have no problems playing
IMO, many apps will look wrong, or at least squeezed.
I'm pretty sure my apps will look a bit squeezed. (But N9 probably doesn't have the hardware my apps use.)
Since this is a Nexus, I'd expect that a decent number of apps will be updated for 4:3, especially if sales are good (but who knows about that right now.)
Unless the app is using fixed layouts or has gaps in their layouts (ie small and large, but no medium) it should be fine.
My touchpad with CM11 has never had any issues with apps due to it's aspect ratio.
The N9 resolution wise is just a double density 1024x768 display like the tp is.
Remember that 16:9/10/pi isnt even exact on any device, since you can both rotate and/or hide the nav and statusbars.
They already have to cope with many different combinations.

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 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.
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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.
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For the M5 8.4, what did you set things to?
Ivanbarker said:
For the M5 8.4, what did you set things to?
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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?
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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.
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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?
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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.
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Thanks! I was unaware you could reset it like that!

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