Question Overscan or a similar function on pixel 6a? - Google Pixel 6a

I replaced my blackberry keyone with a pixel 6a with the plan to make a physical keyboard case for it. I have the hardware and electronics knowledge, but unfortunately I hit a wall when it comes to software. In order for this to work, I would have to make the bottom 200-300 pixels of the display inactive, which could be solved with the overscan function, but unfortunately this is missing from newer Android versions. Is there any other option to solve this issue? Root is fine by me.

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Multitouch/screen issue ?

Hi there,
I just received my new Mi MIX 2S (actually, I got it 360 hours ago, if you know what I mean...) and I'm very satisfied with this toy
I'm on the last MIUI 10 Global Beta (8.7.5) since this afternoon, with SuperSU v2.82-SR5 and of course, with an unlocked bootloader.
However, I noticed a "strange" glitch/issue when I quick touching/typing.
It's seems that the screen not considering the different touch but acts like it does "two in one" touch.
I made a small video to illustrate the issue :
https://youtu.be/NdW8Zeo1MLQ
Does anyone has this too ?
Do you think it's an hardware or a software issue (like calibrate or touch-delay update) ?
Thanks
lafritte57 said:
Hi there,
I just received my new Mi MIX 2S (actually, I got it 360 hours ago, if you know what I mean...) and I'm very satisfied with this toy
I'm on the last MIUI 10 Global Beta (8.7.5) since this afternoon, with SuperSU v2.82-SR5 and of course, with an unlocked bootloader.
However, I noticed a "strange" glitch/issue when I quick touching/typing.
It's seems that the screen not considering the different touch but acts like it does "two in one" touch.
I made a small video to illustrate the issue :
https://youtu.be/NdW8Zeo1MLQ
Does anyone has this too ?
Do you think it's an hardware or a software issue (like calibrate or touch-delay update) ?
Thanks
Click to expand...
Click to collapse
Hardware issue, I have the same issue.
https://forum.xda-developers.com/xiaomi-mi-mix-2s/help/miui-im-swiping-t3803874
Damn... I bought mine on Joybuy, I'll try to deal with them about the warranty because I guess I can't contact Xiaomi directly.
The XDA Gesture workaround seems to be a good temporary way but, I really don't want to stay on a defective device...
I already did this with my Oneplus One (as a early buyer, I got a similar issue) and it was worst with time, I regret to had never return them
lafritte57 said:
Damn... I bought mine on Joybuy, I'll try to deal with them about the warranty because I guess I can't contact Xiaomi directly.
The XDA Gesture workaround seems to be a good temporary way but, I really don't want to stay on a defective device...
I already did this with my Oneplus One (as a early buyer, I got a similar issue) and it was worst with time, I regret to had never return them
Click to expand...
Click to collapse
Bought mine on Aliexpress, no way I'll get a warranty without me paying $30 of shipping and lose a month without the phone.
I tried the XDA gesture thing, but you can't really get the same gestures as on MIUI (alsway have to make the gestures from the bottom of the phone it seems). So for now I'm just using it with this "bug", with the keyboard closing from time to time when I type.
Probably gonna get a Mi Max 3 to replace it anyway sooner or later.
I just made the thest you did with a drawing app and I got the same results when I multi touched the screen very quickly. I hadn't noticed this earlier because it didn't cause any problem for my daily use. Specifically, in which context did you notice that issue?
hayatesan said:
Bought mine on Aliexpress, no way I'll get a warranty without me paying $30 of shipping and lose a month without the phone.
I tried the XDA gesture thing, but you can't really get the same gestures as on MIUI (alsway have to make the gestures from the bottom of the phone it seems). So for now I'm just using it with this "bug", with the keyboard closing from time to time when I type.
Probably gonna get a Mi Max 3 to replace it anyway sooner or later.
Click to expand...
Click to collapse
I guess JoyBuy has the same warranty policy, which means cost return and more than a month without phone...
I haven't tried the XDA Gesture workaround yet, but I'm not too happy about losing the MIUI gesture
Hope that's JoyBuy will be understanding...
rodaven said:
I just made the thest you did with a drawing app and I got the same results when I multi touched the screen very quickly. I hadn't noticed this earlier because it didn't cause any problem for my daily use. Specifically, in which context did you notice that issue?
Click to expand...
Click to collapse
Thanks for your test and your answer.
In my case, it's very annoying when I (fast) typing a message, it causes a "fake" swipe and recude the keyboard or go back to home screen. I'll try to make a better screencast to show you in-use case.
lafritte57 said:
I guess JoyBuy has the same warranty policy, which means cost return and more than a month without phone...
I haven't tried the XDA Gesture workaround yet, but I'm not too happy about losing the MIUI gesture
Hope that's JoyBuy will be understanding...
Thanks for your test and your answer.
In my case, it's very annoying when I (fast) typing a message, it causes a "fake" swipe and recude the keyboard or go back to home screen. I'll try to make a better screencast to show you in-use case.
Click to expand...
Click to collapse
Fine, I'll tell you my experience. I use to had the same problem, it's only noticeable using the keyboard and specially when you tap the letters located near the edge of the screen, specially like the Q and P. I'm almost completely sure that the problem is related to gestures, because the system thinks you're swiping, in my case I got some lag too in addition to the false back gesture. What I did to fix this is use the keyboard (Google keyboard) in one hand mode (long press the "," and this option will pop up next to the emoticon) and moving it to the center and the problem is gone. It's actually more comfortable this way because the space bar moves up and it's more accessible. You can play then with the keyboard size if you think it's too small. There are two others threads talking about the same problem and I recommended this solution in both, and it seems to work for others too. Try it and tell us.
https://forum.xda-developers.com/showpost.php?p=76789600&postcount=13
I have this issue too, are you sure it's a hardware problem and it does not affect everybody?
Thank you.
stark0 said:
I have this issue too, are you sure it's a hardware problem and it does not affect everybody?
Thank you.
Click to expand...
Click to collapse
Hi,
Actually, I think it's more an OS issue than an hardware one.
After some tries and research, I noticed that these "screen glitches" are bad interpretations of fast multitouching, translate into swipe/gesture.
These swipe/gesture come with the gesture navigation mode, included in full-screen desplay (and which allow to hide the bottom navigation bar).
If you re-enable the "classic" display, with the bottom bar, the issue doesn't seem to exist. So, I guess for MIUI, some fast-typing/touching are interpreted as gestures (swipe down-to-up = home, left-to-right = previous...)
In the same registry, I noticed that, if you use a scrollable widget (Google Agenda in planning display) and if you scroll down on it (in order to see the bottom lines for example), MIUI interpret it as a down-to-up gesture (and so, go back to home, or search).
So, I really hope that in a future update, the sensibility of these gestures could be decreased/improved...
For now, you could :
Enable the one-hand mode ok Google Keyboard as proposed by @rodaven (but personnaly, I dislike the fact to have a small keyboard with a lot of lost space around it...)
Disable the full sceen display mode (and so, say goodbye to the gestures feature)
Stay on full screen mode and gestures, get upset when you write a message and pray for un update
lafritte57 said:
Hi,
Actually, I think it's more an OS issue than an hardware one.
After some tries and research, I noticed that these "screen glitches" are bad interpretations of fast multitouching, translate into swipe/gesture.
These swipe/gesture come with the gesture navigation mode, included in full-screen desplay (and which allow to hide the bottom navigation bar).
If you re-enable the "classic" display, with the bottom bar, the issue doesn't seem to exist. So, I guess for MIUI, some fast-typing/touching are interpreted as gestures (swipe down-to-up = home, left-to-right = previous...)
In the same registry, I noticed that, if you use a scrollable widget (Google Agenda in planning display) and if you scroll down on it (in order to see the bottom lines for example), MIUI interpret it as a down-to-up gesture (and so, go back to home, or search).
So, I really hope that in a future update, the sensibility of these gestures could be decreased/improved...
For now, you could :
Enable the one-hand mode ok Google Keyboard as proposed by @rodaven (but personnaly, I dislike the fact to have a small keyboard with a lot of lost space around it...)
Disable the full sceen display mode (and so, say goodbye to the gestures feature)
Stay on full screen mode and gestures, get upset when you write a message and pray for un update
Click to expand...
Click to collapse
Thank you so much!
I have the gestures disabled because of that but it still happens in the keyboard (I don't like the one-hand mode). So, we need to wait hoping it'll be solved.
stark0 said:
Thank you so much!
I have the gestures disabled because of that but it still happens in the keyboard (I don't like the one-hand mode). So, we need to wait hoping it'll be solved.
Click to expand...
Click to collapse
I just found that this issue was submit on MIUI website in January : http://en.miui.com/thread-1539964-1-1.html
lafritte57 said:
I just found that this issue was submit on MIUI website in January : http://en.miui.com/thread-1539964-1-1.html
Click to expand...
Click to collapse
But that's different from the multitouch issue that is in the main post (https://www.youtube.com/watch?v=NdW8Zeo1MLQ&feature=youtu.be), isn't it?
stark0 said:
But that's different from the multitouch issue that is in the main post (https://www.youtube.com/watch?v=NdW8Zeo1MLQ&feature=youtu.be), isn't it?
Click to expand...
Click to collapse
In my opinion, it's the same issue.
Due to the full screen/gesture feature, fast multitouches are interpreted as a gesture.
On my video, you could see it.
On the issue from MIUI website, users asked that swipe/gesture are disable over keyboard when it's on-screen.
I think it should be a solution to combine gesture navigation and fast multitouch/type.
Personnaly, I disable full screen/gesture navigation (for now, sadly) and the issue desappear, that's why I'm pretty sure it's a software issue (which concern very model with this feature).
I changed my screen
Actually i cracked my screen and replaced new lcd from aliexpress claimed original. I checked it is JDI. But the touch issues still persist. I think its xiaomi driver.. or i dont know.. i really regret having this phone
lafritte57 said:
In my opinion, it's the same issue.
Due to the full screen/gesture feature, fast multitouches are interpreted as a gesture.
On my video, you could see it.
On the issue from MIUI website, users asked that swipe/gesture are disable over keyboard when it's on-screen.
I think it should be a solution to combine gesture navigation and fast multitouch/type.
Personnaly, I disable full screen/gesture navigation (for now, sadly) and the issue desappear, that's why I'm pretty sure it's a software issue (which concern very model with this feature).
Click to expand...
Click to collapse
I tested more, disabling fulls creen gestures and the problem persist. There is a video with the keyboard trying to type "alguna", sometimes it makes a gesture "left to right":
https://www.youtube.com/watch?v=N8EgUfaN5C0
It's very disapointing, I had touch screen problems with my oneplus one and now with the mix 2s.

Inaccurate touch input on Replaced display

I use a rooted Redmi Note 3 but I really don't think this has a device specific resolution hence posting here. So I broke my display and replaced it from a local shop. (no option for replacement) The problem with the new one is that no matter where I touch on the screen it will be registered on a spot directly below it. For example if you have a QWERTY style keyboard, touching on Q will input an A. This is especially annoying while typing and browsing the internet(clicking the wrong link) . Is there an app or a command that enables me to correct this. Maybe by having the screen move a little without affecting the touch layer. I have a few millimeters hidden under the visible display not sure if it is related. Have corrected it with a screen resizer app but touch issue persists.

Change DPI? Breaks finger print icon?

Hi,
I just got my OP7 Pro and one of the first things I like to do is change the DPI in 'developer options'. I did this on the OP7 Pro and it broke finger print authentication. The DPI changes appears to actually make the whole lockscreen size placement smaller which also moves the green "fingerprint icon" higher up on the screen (off of the actual under screen hardware location). This then breaks finger print scanning on the lock screen (so make sure you got a pin key set). I went from the standard 411? to 460. I don't remember this problem on my 5T or 6T. Anyone else notice?
Thanks.
Just wondering why you'd need to do this? Is it because OOS's smallest Display size is still too big? Just curious.
Hmm...because I can . But partially yes. I just did it and then changed it back once I realized it broke finger print authentication. I can live without it but this wasn't an issue on older models and part of the beauty of these phones is the ability to customize whatever the he$$ you want.
tskoze said:
Just wondering why you'd need to do this? Is it because OOS's smallest Display size is still too big? Just curious.
Click to expand...
Click to collapse
From my experience with the 6T (I don't have the 7 Pro, yet), custom DPI messes things up in weird places. In some games, the onscreen buttons would not correspond with their actual input threshold (sorry for improper wording).
pzimmy79 said:
Hi,
I just got my OP7 Pro and one of the first things I like to do is change the DPI in 'developer options'. I did this on the OP7 Pro and it broke finger print authentication. The DPI changes appears to actually make the whole lockscreen size placement smaller which also moves the green "fingerprint icon" higher up on the screen (off of the actual under screen hardware location). This then breaks finger print scanning on the lock screen (so make sure you got a pin key set). I went from the standard 411? to 460. I don't remember this problem on my 5T or 6T. Anyone else notice?
Thanks.
Click to expand...
Click to collapse
Yes, I didn't have this problem on my 6T either... But my 7 Pro doesn't like anything beyond 437... 438 onwards, fingerprint doesn't work... So I kept it at 437...
520 DPI works
520 dpi works, One Plus is aware
I have mine set at 479 and everything works fine.
Using 480 with no problem, was also using 470 for a while flawlessly
Ok, anything between 438 and 470 is causing the problem.. from 470, it works fine...

[HELP] Screen size,notch,rounded corners change

Hi people, am currently waiting for bootloader unlock, am trying to sort things out and see how am gonna use my new rooted phone Xiaomi Redmi Note 9 Pro (got it as gift), well phone is great, but am coming from old era where rounded corners and notch was not a thing, i still prefeer screens with rectangle shape, and am willing to sacriface lower portion of screen up to ending of rounded corner and same above till the camera module, so i can have nice rectangular screen
Now my question is how to?
How to change screen size? (how to measure where to start and end)
If by software rounded corners still exist how to remove them?
Am planing to flash xiaomi.eu rom (am considering Ressurection Remix) and magisk root.
Thank you great people and community.
It's simple, and can be done without rooting, connect with ADB.
So your device has 1080x2400 resolution, you'll have to lower numbers from the height (2400) in order to get a rectangular display.
Play with numbers till you get it right, commands to use:
adb shell
wm size 1080x2200
Mohamedkam000 said:
It's simple, and can be done without rooting, connect with ADB.
So your device has 1080x2400 resolution, you'll have to lower numbers from the height (2400) in order to get a rectangular display.
Play with numbers till you get it right, commands to use:
adb shell
wm size 1080x2200
Click to expand...
Click to collapse
Thank you very much, i will check it out once i got bootloader unlock since am waiting 168h on Xiaomi devices, i will not fiddle with anything so i dont mess something up
And about software rounding, since when in settings i choose option to hide notch and move status bar down, it hides a notch and its completley disabled part of screen, but it still gets a rounded corners by software, i will try this with option dont hide anything maybe then under hardware display is rectangular, but you never know i will let you know , but if it is software how can i find it on my device, since i googled and found something for Pixel devices, and its all diffrent, thank you alot.
And what about DPI , or resolution after that change, should i keep everything as it is
essen33 said:
Thank you very much, i will check it out once i got bootloader unlock since am waiting 168h on Xiaomi devices, i will not fiddle with anything so i dont mess something up
And about software rounding, since when in settings i choose option to hide notch and move status bar down, it hides a notch and its completley disabled part of screen, but it still gets a rounded corners by software, i will try this with option dont hide anything maybe then under hardware display is rectangular, but you never know i will let you know , but if it is software how can i find it on my device, since i googled and found something for Pixel devices, and its all diffrent, thank you alot.
And what about DPI , or resolution after that change, should i keep everything as it is
Click to expand...
Click to collapse
Hiding notch ain't that effective, and you lose some of your screen doing so.
Your screen is a rounded AMOLED, that's hardware, it also has software roundness in order to be compatible with your screen. It's not that hard to disable roundness, for hardware, you can overcome it by "wm size", and you can change DPI by: "wm density xxx" to your desired value.
The software overcoming needs APK editing, so you need a PC/Laptop. You need to edit framework-res.apk (and maybe SystemUI.apk). There's an app that allows you to edit framework-res.apk values directly, you may want to check it:
Privset.
Mohamedkam000 said:
Hiding notch ain't that effective, and you lose some of your screen doing so.
Your screen is a rounded AMOLED, that's hardware, it also has software roundness in order to be compatible with your screen. It's not that hard to disable roundness, for hardware, you can overcome it by "wm size", and you can change DPI by: "wm density xxx" to your desired value.
The software overcoming needs APK editing, so you need a PC/Laptop. You need to edit framework-res.apk (and maybe SystemUI.apk). There's an app that allows you to edit framework-res.apk values directly, you may want to check it:
Privset.
Click to expand...
Click to collapse
Thank you, its actually LCD, on Redmi note 9 pro, Thank you for commands above, when i screenshot something it appears rectangle, so in theory it should work and rounded edges should not be there
Well for that APK stuff, does installing custom ROM help in that? I was thinking about RR rom,
Also, i dont mind losing screen size, and for me hiding notch is a must doing it this way, personally i hate it, i hate rounded edges, i just hate it my heart hurts when i see it, i got this phone as gift so i need to appreciate it i cant sell/replace it that way its kinda disrespectful
essen33 said:
Thank you, its actually LCD, on Redmi note 9 pro, Thank you for commands above, when i screenshot something it appears rectangle, so in theory it should work and rounded edges should not be there
Well for that APK stuff, does installing custom ROM help in that? I was thinking about RR rom,
Also, i dont mind losing screen size, and for me hiding notch is a must doing it this way, personally i hate it, i hate rounded edges, i just hate it my heart hurts when i see it, i got this phone as gift so i need to appreciate it i cant sell/replace it that way its kinda disrespectful
Click to expand...
Click to collapse
Oh sorry, I assumed it being a budget killer to offer an AMOLED display similar to RN10.
Well .. having LCD makes it a bit different, as the parts you cut off from your display will keep lightening up, that's how LCD displays work.
Honestly, you'll hate it more, it'll be like watching a long video on YouTube without fullscreen mode.
Strange tradition you've got right there, here, we're more understanding, if someone gifted you a phone, it won't matter if you sold it or replaced it, what matters is the feelings you've grown out of his gift.
About the APK stuff, it can be done on any ROM, but it's more stable on AOSP-based ROMs like RR, Havoc, PE, ...
An easy way to achieve your goal would be to use adb wm size, and reduce height. (There's another thing to do, adjust the new touch positions; cause your phone will keep using old positions, so if you're using gestures, it won't work that simple, till you recalculate it. (Easy to solve).
Mohamedkam000 said:
Oh sorry, I assumed it being a budget killer to offer an AMOLED display similar to RN10.
Well .. having LCD makes it a bit different, as the parts you cut off from your display will keep lightening up, that's how LCD displays work.
Honestly, you'll hate it more, it'll be like watching a long video on YouTube without fullscreen mode.
Strange tradition you've got right there, here, we're more understanding, if someone gifted you a phone, it won't matter if you sold it or replaced it, what matters is the feelings you've grown out of his gift.
About the APK stuff, it can be done on any ROM, but it's more stable on AOSP-based ROMs like RR, Havoc, PE, ...
An easy way to achieve your goal would be to use adb wm size, and reduce height. (There's another thing to do, adjust the new touch positions; cause your phone will keep using old positions, so if you're using gestures, it won't work that simple, till you recalculate it. (Easy to solve).
Click to expand...
Click to collapse
Well its a family gift so if i sell it it would be toxic "you didnt like my gift" , iam about to flash RR, so i will look into that, i dont mind having background light on unused part of screen, well how if you dont mind, your tips on recalculating touch positions, i found some googling around, what you recommend, thanks alot
essen33 said:
Well its a family gift so if i sell it it would be toxic "you didnt like my gift" , iam about to flash RR, so i will look into that, i dont mind having background light on unused part of screen, well how if you dont mind, your tips on recalculating touch positions, i found some googling around, what you recommend, thanks alot
Click to expand...
Click to collapse
Okay, so a year ago, I had Galaxy S7 that got some water issues, so the bottom part of screen wasn't working, and I was using on-screen navigation bar, so I used ADB wm commands to make the phone usable until it dries up.
What I did was, reducing screen height up to the usable part. Then, I used: adb wm overscan command.
This command tells the system where is the screen end, whether at top, bottom, right, or left. So if your bottom screen is reduced by 2 cm, you'll have to tell your system about that, so that it don't assume it's still at the actual hardware values.
The command uses numbered values separated by commas like this (original values):
wm overscan 0,0,0,0
The numbers are organised LEFT,TOP,RIGHT,BOTTOM
You can use minus too, I honestly don't remember which numbers were suitable for my case, you'll have to check it on your own (won't take over 10 minutes). Only change TOP & BOTTOM values.
Who knows, maybe you won't need to do this anymore, perhaps Android 11's AI does that automatically whenever changing screen resolution.
Mohamedkam000 said:
Okay, so a year ago, I had Galaxy S7 that got some water issues, so the bottom part of screen wasn't working, and I was using on-screen navigation bar, so I used ADB wm commands to make the phone usable until it dries up.
What I did was, reducing screen height up to the usable part. Then, I used: adb wm overscan command.
This command tells the system where is the screen end, whether at top, bottom, right, or left. So if your bottom screen is reduced by 2 cm, you'll have to tell your system about that, so that it don't assume it's still at the actual hardware values.
The command uses numbered values separated by commas like this (original values):
wm overscan 0,0,0,0
The numbers are organised LEFT,TOP,RIGHT,BOTTOM
You can use minus too, I honestly don't remember which numbers were suitable for my case, you'll have to check it on your own (won't take over 10 minutes). Only change TOP & BOTTOM values.
Who knows, maybe you won't need to do this anymore, perhaps Android 11's AI does that automatically whenever changing screen resolution.
Click to expand...
Click to collapse
Thanks alot i managed to set it up, very helpfull
essen33 said:
Thanks alot i managed to set it up, very helpfull
Click to expand...
Click to collapse
Glad I could help.
Hello, I have a problem and a question with him. When I install a custom rom and lower the resolution, despite using the notch bar killer, a notch remains that got bigger and I can't delete them, also when I put the dark mode it becomes white

What road to smaller screen / Apps?

Hi Guys,
Long time user of Sonys Compact phones here, so I'm custom to small screens and one hand operation of my phone, i HATE that I have to use two hands, and the manufactors thinks that we all loves big screens..
Ok so I bought a Google Pixel 4a, but for me thats also to big.
I have tried to set the display resolution via adb wm Size function, it works like a sharm, but the phone centeres the display, and google have for some reason removed the overscan function i version11, so I cant set the display to be on the bottom. "damn you google"
I have also tried the Quick cursor app, but its so slow to use all the time.
Then a thought, is there a way to force all apps only to be X pixels high, and fixed at the bottom of the screen? I dont want to ever reach over a certain point of my screen.
Or is there another way to solve my problem?
We are seeing our selfs as a smart race, but creates devices that needs two hands to operate?! jeezzee
PS. No root options wanted.
Kind regards
Morten
May be Android's Split Screen mode is a workaround.
BTW: On ChromeOS, Android apps can be presented in freeā€‘form windows that are arbitrarily resizable

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