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!
Related
Modifying the LCD density of your screen will provide HUGE REACTIVITY GAIN to the tablet
We can also tweak Dalvik heapsize for large application
Both are editable using software but they're also properties on the build.prop :
- dalvik.vm.heapsize
- ro.sf.lcd_density
Does editing this properties is enough for the Folio follow or do we have to make much complex operations ?
I there, is this fix already implemented or has to be done manually?!?
I've implemented them using FolioWidget rewriting build.prop.
Not sure the folio take care of it.
But it seems that's is not required by users so i'll wipe them
Sol Ido said:
I've implemented them using FolioWidget rewriting build.prop.
Not sure the folio take care of it.
But it seems that's is not required by users so i'll wipe them
Click to expand...
Click to collapse
I dont understand what u mean.
ps: have u read my pm?
Sol Ido said:
I've implemented them using FolioWidget rewriting build.prop.
Click to expand...
Click to collapse
density of 120 works quite fine here now.. with old market app, there was a problem with 120 but that seems resolved now with new market app..
and yes, somehow screen and browsing seems to work better? or is it just the bigger picture giving a nicer resolution of browsing?
All resolution are good. If you have a lot of items on the screen lower density is best.
But by using something like 180 you get a lot of visibility. Since i've developped a lot of complex widgets, it's my favorite one.
Using a density >120 will get you less data to manage on the screen and you can feel the gain ! i'm using multipicture and a lot of complexes widgets and there's not fillrate lag at all.
I was quite surprised with this benefits.
My purpose is that those options can really feet somes users needs. VM heap tricks like the one you found on cyanogen helps on huge application like PDF readers.
But even after editing those properties on the build.prop they are not taken into account. Maybe because of the previous installation i've done. So i'm looking to better understand how to override android properties.
I'm not sure how android handles non-default values for this property.
You should try with one of these:
120 (low-density)
160 (medium-density, Folio default)
240 (high density)
Depending on how this is handled, setting a density different than that may result in broken applications (depending on how the layouts are coded)
Using the LCD DEnsity application i confirm that all resolution are compatible with the folio
Maybe some application will have a bad behavior ! so we've to be able to change the density
metuskale said:
I there, is this fix already implemented or has to be done manually?!?
Click to expand...
Click to collapse
This is no fix, as there are no real issues with these things. Its only a matter of tweaking the folio to your best personal use. They have to be implemented manually.
Shouldn't the dalvik heapsize fix the sound problem with some avi files?
I'm using the foliomod 1.3d, foliowidget works, but some avi files arn't giving me sound
Hello, could someone tell me how the default value for the heapzize is, please? There is only 16, 24 and 32 to choose, but I read something about 64!? How can I choose this value or get back to default?
Thx
Tom
Edit: solved!
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.
Hello
Can i change dpi stock 240. Someone have tested?
kvadde said:
Hello
Can i change dpi stock 240. Someone have tested?
Click to expand...
Click to collapse
A solid-state screen's DPI is a physical attribute, you cannot change it.
I believe OP is referring to the soft DPI settings in build.prop. You must root, then edit the ro.sf.lcd_density setting in build.prop. It's already 240 on CM, not sure about stock though.
Cat McGowan said:
A solid-state screen's DPI is a physical attribute, you cannot change it.
Click to expand...
Click to collapse
You are talking about PPI, not DPI
Stock DPI is also 240.
But why would you want to change that??
If some app is not displaying to your satisfaction, it's better not to modify build.prop, because it could lead to unexpected weird behaviors.
Better is to use the "Xposed Framework" with the module "App Settings"; there you can specify individual DPI settings for each app. The safer and more flexible solution! I use it without problems on all my devices.
Felimenta97 said:
You are talking about PPI, not DPI
Click to expand...
Click to collapse
You have it backwards.
kvadde said:
Hello
Can i change dpi stock 240. Someone have tested?
Click to expand...
Click to collapse
As you didn't specify whether you want this on stock firmware or an AOSP ROM, I'd suggest to try the PACman port to the XTZ, as it includes per-app DPI modifier. It's currently in nightlies and no fully stable release as of yet, but it's worth to try if you really need that feature.
DPI = Dots Per Inch
PPI = Pixels Per Inch
The reason we've started to use PPI instead of DPI is because of PenTile, since that technology yields more pixels than dots per inch (dots are shared between adjacent pixels). Both are properties of the hardware but by telling Android you have a different DPI you can scale the UI. This procedure will make graphical elements that makes use of their physical size on the display (rulers, printing tools, etc.) show up at incorrect sizes.
For example, if you have a virtual measurement tape, you'll need to multiply all values with the original DPI divided by the new DPI. So if you choose to change your tablets DPI to 120, making every UI element scale to half of the original size, you'd need to multiply every value by 240/120=2 for it to match up with the real world.
I hope this clears things up.
Shanliang- said:
As you didn't specify whether you want this on stock firmware or an AOSP ROM, I'd suggest to try the PACman port to the XTZ, as it includes per-app DPI modifier. It's currently in nightlies and no fully stable release as of yet, but it's worth to try if you really need that feature.
Click to expand...
Click to collapse
As I already said: No need to change firmware. Just install Xposed framework with App Settings module on rooted device, and you can freely modify DPI per app.
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..
@duraaraa any info or direction that you can provide on this?
I upped the resolution from stock 1080x2160 to 2160x4320 and left dpi at stock so I can have more screen real estate and still have a comfortable viewing experience. The issue I'm facing now is, I cannot capture a screenshot I get an error.
System UI
Couldn't Capture Screenshot
Screenshots are not allowed by this app or your organization.
steps to reproduce:
up your resolution to 2160x4320 and take a screenshot
Any guidance would be appreciated.
webleeper said:
@duraaraa any info or direction that you can provide on this?
I upped the resolution from stock 1080x2160 to 2160x4320 and left dpi at stock so I can have more screen real estate and still have a comfortable viewing experience. The issue I'm facing now is, I cannot capture a screenshot I get an error.
System UI
Couldn't Capture Screenshot
Screenshots are not allowed by this app or your organization.
steps to reproduce:
up your resolution to 2160x4320 and take a screenshot
Any guidance would be appreciated.
Click to expand...
Click to collapse
Sorry, don't know. Probably issue related to rooting and the settings you changed.
Thanks for the quick reply but I'm not rooted.
webleeper said:
@duraaraa any info or direction that you can provide on this?
I upped the resolution from stock 1080x2160 to 2160x4320 and left dpi at stock so I can have more screen real estate and still have a comfortable viewing experience. The issue I'm facing now is, I cannot capture a screenshot I get an error.
System UI
Couldn't Capture Screenshot
Screenshots are not allowed by this app or your organization.
steps to reproduce:
up your resolution to 2160x4320 and take a screenshot
Any guidance would be appreciated.
Click to expand...
Click to collapse
Mate 10 pro panel is only 1080p to begin with,
In what way did you upped the resolution ?? The setting wont give you that resolution option.
otonieru said:
Mate 10 pro panel is only 1080p to begin with,
In what way did you upped the resolution ?? The setting wont give you that resolution option.
Click to expand...
Click to collapse
no need for root or settings to change DPI or Resolution
adb shell wm size 2160x4320
adb shell wm overscan reset
webleeper said:
no need for root or settings to change DPI or Resolution
adb shell wm size 2160x4320
adb shell wm overscan reset
Click to expand...
Click to collapse
uh... well... you already understand that this method is "only faking" the number for the app to think that it run on that size of screen right ? Hardware & stock OS wise, the limitation is still on 1080p
I dont think the system UI app of EMUI 8 itself was made to handle that number
Normal 4K itself is only 3840 x 2160, and i dont think i ever found any phone running 4K+ (18:9)
This is just like asking why sometimes the play store act weird when we change our DPI
So answer is that : because it simply didn't support it
I've done #wm size 720x1280 & wm density 320 to 720p screen for long battery life. and I found the system's screenshot can not take whole screen(720p one).
It looks like the screenshot component take a 480p screen and the same 720p adjusting on AEX 5.x is fine.
so I thought maybe the screenshot on pie still mistake 720p screen for 1080p screen and take a 480p picture（expect: 1080p x 720/1080 = 720p, but now: 1080p x 720/1080 x 720x1080 = 480p）
But I notice that keep wm size 1080x1920, whatever which density（320 480 240）I've set, the screenshot could take a complete screen picture. while I change density, whatever resolution (720x1280, 480x800, 1080x1920), screenshot just take the top left part of screen...
partial screenshot is same condition , take a top left part of what I selected .
the screenshot on different resolution is the last issue I can found on AEX 6.0, which not contain on AEX5.x（maybe this is pie issue but still expect you can fix it） if I don't need change the resolution, the ROM is PERFECT?
can you fix this ?? thxxxxx a lot
XDrz said:
I've done #wm size 720x1280 & wm density 320 to 720p screen for long battery life. and I found the system's screenshot can not take whole screen(720p one).
It looks like the screenshot component take a 480p screen and the same 720p adjusting on AEX 5.x is fine.
so I thought maybe the screenshot on pie still mistake 720p screen for 1080p screen and take a 480p picture（expect: 1080p x 720/1080 = 720p, but now: 1080p x 720/1080 x 720x1080 = 480p）
But I notice that keep wm size 1080x1920, whatever which density（320 480 240）I've set, the screenshot could take a complete screen picture. while I change density, whatever resolution (720x1280, 480x800, 1080x1920), screenshot just take the top left part of screen...
partial screenshot is same condition , take a top left part of what I selected .
the screenshot on different resolution is the last issue I can found on AEX 6.0, which not contain on AEX5.x（maybe this is pie issue but still expect you can fix it） if I don't need change the resolution, the ROM is PERFECT
can you fix this ?? thxxxxx a lot
Click to expand...
Click to collapse
Who is gonna fix what? Just use the phone the way its supposed to be used i dont understand what you are doing and why. If anyone, huawei can fix your issue i guess.... good luck talking to them.
You should read this, particularly the long answer near the top which explains the size vs density changes.
https://stackoverflow.com/questions...to-use-adb-shell-wm-to-simulate-other-devices
I think this is actually a bug in android pie. My phone has a 4k display, but normally uses HD res unless in gallery app. So I changed wm size and density to match the display (and despite what some other say, this actually changes the visible resolution, IF your display has this many physical pixels).
Screenshots worked worked fine in oreo, but after updating to pie, there are black borders on the picture.
Display
Spodi2290 said:
I think this is actually a bug in android pie. My phone has a 4k display, but normally uses HD res unless in gallery app. So I changed wm size and density to match the display (and despite what some other say, this actually changes the visible resolution, IF your display has this many physical pixels).
Screenshots worked worked fine in oreo, but after updating to pie, there are black borders on the picture.
Click to expand...
Click to collapse
No Huawei phone has a 4k display, this whole thread is a waste of space really, guy setting his phone display to something that is not supported and wondering why his screenshot won't work, damn mate 10 pro is 2160x1080 and can't be any more than that, if the problem was the screenshots not working in a supported mode there might be a reasonable and were but as it stands this thread should be closed and deleted
revjamescarver said:
No Huawei phone has a 4k display, this whole thread is a waste of space really, guy setting his phone display to something that is not supported and wondering why his screenshot won't work, damn mate 10 pro is 2160x1080 and can't be any more than that, if the problem was the screenshots not working in a supported mode there might be a reasonable and were but as it stands this thread should be closed and deleted
Click to expand...
Click to collapse
The whole point of my post was more like: its not a Huawei only "bug", but effects all (or at least most) pi phones with a custom wm size set. Maybe I was beating around the bush too much... :angel:
Spodi2290 said:
The whole point of my post was more like: its not a Huawei only "bug", but effects all (or at least most) pi phones with a custom wm size set. Maybe I was beating around the bush too much... :angel:
Click to expand...
Click to collapse
Hi, have you found any solution for the screenshots when you change the screen resolution? You're right it happens only in pie and with different phones, in oreo the multitasking previews resize when you enter to the app but the screenshots are ok, in oreo the previews in multitask are ok but the screenshot miss a part of the screen.