Related
It's not a secret that AMOLED screens like the one installed in S4 mini have wider color range than IPS what often results in over-saturated images which were prepared for standard sRGB range.
Stock S4 mini ROM has means to change color profiles. So the question is - if this functionality also included/planned to be included in S4 mini's CM and kernel CM uses for this model? Could profiles be anyhow adjusted?
It's on my to-do list.
Really glad to hear it, Arco! Thanks!
Could you please share a bit about mechanism behind that? Is it really some driver/kernel-space functionality or it is being implemented on higher levels?
metaxaos said:
Really glad to hear it, Arco! Thanks!
Could you please share a bit about mechanism behind that? Is it really some driver/kernel-space functionality or it is being implemented on higher levels?
Click to expand...
Click to collapse
Haven't really looked at it yet, but I think both kernel and user space changes are needed.
arco68 said:
Haven't really looked at it yet, but I think both kernel and user space changes are needed.
Click to expand...
Click to collapse
Hi arco68,
I'm also interested in a solution for the over-saturation problem of the amoled of my S4 mini. Before that I'll keep my stock rom that has the profiles included.
In the meanwhile any progress on that?
S4 Mini oversatured display - solution!
Finally I found something that really works: S4minisettings.apk
http://forum.xda-developers.com/showthread.php?t=2558702&page=11
look for F4k's post
This build is for cm 11 (4.4 kitkat). The only thing is you have to manually put it to system/apps/ folder and then correct the permissions to
rw,r,r (644)
otherwise it doesn't work.
To get really natural colors instead of the oversatured ones you have to set mode to "natural" and temperature to "normal". Sometimes you have to switch the display off and on to get the settings applied.
Great thanks to F4k!
Cool!
Finally i get rid of this unnatural colours,
thanks peter and f4k! :good::good::good:
If you're interested I've developed an App called "ColorModeChanger" to adjust colors and saturation. You cn visit XDA thread at: http://forum.xda-developers.com/showthread.php?t=3154845
Howdy!
I hereby offer an alternative build of the latest visi0nary's kernel.
The original thread is located here
Please note that the credits remain with BlueFlame4 (the maker of visi0nary's kernel), as this is the same kernel, just differently built.
Some years ago I spent many months trying to optimize UI smoothness and power consumption for a kernel of a different device, in which I succeeded.
From this time I remember some build flags and kernel config settings that improved (scrolling) smoothness and power consumtion for that device at that time.
So, in an attempt to do the same for the P9000, I re-built the latest visionary's kernel with the following differences:
different/improved build flags
minor changes in kernel defconfig
compiled using a self-compiled sabermod toolchain
With these changes in the build process I try to achieve the following things:
improved smoothness/snappiness of the UI (NOT higher benchmarks - I just want the user experience to be as smooth as possible, benchmarks do not really matter)
improved (lower) power consumption
The built kernel feels improved in smoothness to me, but this might be my own biased opinion.
Anyway, I would appreciate, if some of you good people could use this kernel as a daily driver, in order to see after a few days, if there are really any noticable improvements over the original build of visi0nary's kernel. Please report back in this thread, thank you.
Installation: just flash in recovery - delete cache & dalvik cache afterwards (also in recovery, after kernel flash)
Attention: this build is not for cyanogenmod - it's for Stock P8000 ROM or other Stock-based ROMs like Eragon (I'm using it on the latest Eragon myself).
To verify that you are running the alternative build, you will see a "-gueste" (that's me) appendend to the kernel version number (see attached screenshot).
Thanks mate.
I will flash it to See if something is different/improved
Wish you all the best for this project!
Thanks Allways glad to see effort.
Testing will return with feedback.
Thanks for the kernel. I've just flashed it and so far I see that when you go directly to the battery menu from the notification bar, that menu is much snappier. On the stock and on visionary's kernel you had to wait a little bit to see the details of specific apps draining the battery. That's the feedback which I can say now, I'll try to give information about the power consumption in the future. Thanks for developing!
Thanks in advance at all.
For me so far power consumption seems to be very good (while it is not bad on the original build either). I'm anxious to see, how it will compare to the original build after 2 more days.
Hello! I have just fleshed the phone with this kernel. Seems great for now. Will update you for the power consumption in the near future.
P.S Im so happy that someone has taken over this project, and I hope it will keep you developing it!
boka18 said:
Hello! I have just fleshed the phone with this kernel. Seems great for now. Will update you for the power consumption in the near future.
P.S Im so happy that someone has taken over this project, and I hope it will keep you developing it!
Click to expand...
Click to collapse
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Stefan Gündhör said:
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Click to expand...
Click to collapse
Feel free - that's the spirit of open source! My P8000 is already on eBay so I'll visit this forum less and less. It's good to see people picking up my work though!
Stefan Gündhör said:
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Click to expand...
Click to collapse
I understand completely, but I DO hope that u will be able to continue optimising this great kernel!
What new in this kernel?
What the bug fix?
Okalash said:
What new in this kernel?
What the bug fix?
Click to expand...
Click to collapse
Pro Tip: Read the OP :laugh:
For me so far battery life seems to be very good.
After 2 days and 10 hours of uptime I still got 42% battery.
Now this value is not very informative, as it depends heavily on the usage of the phone.
Compared to the original build of the kernel at least power consumption seems to be better on my phone.
During phone uptime I occasionally played games (not very long though), was connected to bluetooth and wifi many hours, browsed through the web regularly and had only few and short phone calls. Over night for some hours I was in flight mode, while last night I wasn't.
Thank you for continuing the project! I flashed the rebuilt kernel because I had a "feeling" that the battery performance of the original Visi0nary kernel was somewhat lower than the stock kernel. (But maybe I am mistaken.)
So far I have no problems with the rebuild kernel. It is too early to comment on battery performance.
Does it make sense to run Skeleton's Seeder app (part of Eragon ROM) in conjunction with this custom kernel?
Moreover, is there any chance to port the P7000 kernel scripts that enable Android device encryption into this P8000 kernel/Eragon ROM? See http://forum.xda-developers.com/elephone-p8000/general/dev-cwm-elephone-p8000-t3200296/page11 The lack of device encryption is my main gripe with the P8000. Apart from that, I love this phone.
-Tiz- said:
Does it make sense to run Skeleton's Seeder app (part of Eragon ROM) in conjunction with this custom kernel?
Click to expand...
Click to collapse
This rebuild of visionary's kernel is feature-equivalent to the original build. So, yes, you can use the seeder app (I use it myself).
Regarding device encryption you need to understand that it has been left out of the ROM most likely on purpose, because this is a China-phone, and the chinese government is quite restrictive on encryption. And as Eragon (same as other stock-based ROMs) is based on the stock ROM, this feature is missing there as well.
This means, depending on the effort, Elephone made, to remove this feature from Android, it might be possible to reactivate it, it's just a matter of (testing) time.
I haven't tried with other ROMs like Cyanogenmod, but in theory it should work there.
As far as I have seen, the to enable encryption for P8000 stock and stock-based ROMs we would need to modify one or more scripts of the P8000 ramdisk (for example the russian guy you linked added in init.environ.rc:
Code:
export LD_PRELOAD libsigchain.so
And there are also a couple of other differences in the other rc scripts. It's not exactly clear (to me), which changes in the end are required for encryption to be enabled. Also we don't know if after these changes, the encryption option will magically appear in the device settings, or if we need to enhance the menu ourselves.
Furthermore, the russian guy mentions, that we might have to modify and rebuild the sepolicy binary file located in the ramdisk, in order to get selinux (security enhanced linux) to permit our changes (but I don't know if we would need that just for the encryption feature, as init.d already works for P8000 as opposed to P7000 - correct me if I'm wrong).
So to sum up, this sounds like a lot of testing, which I personally don't have the time for But maybe someone else does.
Don't take the Android encryption feature too seriously - at least not, if you are trying to hide from government. However, if you are trying to protect your data from normal people, it surely would be nice to have.
Stefan Gündhör said:
Tin order to get selinux (security enhanced linux) to permit our changes (but I don't know if we would need that just for the encryption feature, as init.d already works for P8000 as opposed to P7000 - correct me if I'm wrong). ...
However, if you are trying to protect your data from normal people, it surely would be nice to have.
Click to expand...
Click to collapse
Thanks. It is also my understanding that init.d already works for Eragon ROM. Therefore, I was hoping that it might be relatively easy to enable encryption. On the P7000, it seems that the menus simply appeared once the scripts were implemented. Wooster even talked about the possibility to make a "blind" patch for the the P8000.
Moreover, I agree that Android device encryption might not be 100% bullet-proof. However, it would allow me and others to sufficiently protect private email passwords and work-related data (e.g. if the phone gets lost or stolen). By contrast, the screen lock is no protection at all. In particular, if a custom recovery is installed ...
It appears that I am not the only P8000 owner who has a vital interest in device encryption:
http://bbs.elephone.hk/thread-6924-1-1.html#.Vow51hBukwE
http://bbs.elephone.hk/thread-9012-1-1.html#.Vow51xBukwE
Tonight I will download and test it
I don't care much about encryption, but God, I would pay for someone who could actually SOLVE the sub-15% sudden battery charge. Any chance you can look into/fix it, Stefan? You look like one of our potential hopes, haha
---------- Post added at 02:42 PM ---------- Previous post was at 02:41 PM ----------
BlueFlame4 said:
Feel free - that's the spirit of open source! My P8000 is already on eBay so I'll visit this forum less and less. It's good to see people picking up my work though!
Click to expand...
Click to collapse
Hi, sorry to ask but why exactly? Got a new/better phone? Got tired of the P8000 bugs/camera? In time, which phone did you get?
Best regards
Rizera said:
Hi, sorry to ask but why exactly? Got a new/better phone? Got tired of the P8000 bugs/camera? In time, which phone did you get?
Best regards
Click to expand...
Click to collapse
No problem, haha. Well, I bought this phone because I want to learn how to port CM or ROMs in general onto other devices and how Android works internally. Unfortunately MediaTek SoCs are quite beginner-unfriendly so I'll go for Qualcomm for now. Just got my Elephone Trunk btw Also there's basically zero "from source" development going on the the P8000 and it's not really fun to do all the things completely alone.
Cheers!
1.
Battery performance of the newly built kernel seems to be good. Heavy WLAN browsing still quickly kills the battery. But I could imagine that this is a hardware issue (power inefficient Mediatek WLAN modem?).
2.
"Also there's basically zero "from source" development going on the the P8000 and it's not really fun to do all the things completely alone. " Sad but true.
Announcing kernel "guestekrnl" (based on the latest version of visi0nary's kernel): http://forum.xda-developers.com/elephone-p8000/orig-development/kernel-guestekrnl-v1-6-2-t3287518
I was told that these where the source code of CM12.1. I'll share it with you:
https://github.com/s0be/android_device_letv_x1na
https://github.com/s0be/android_vendor_letv_x1na
https://github.com/s0be/android_kernel_letv_msm8994
I don't know any news of kernel source code release by LeEco.
Let's see if, with subforum on XDA-Developers we have more ROMs coming up, hope so.
From a Chinese bbs
There has been indeed something going on since November on this front
http://bbs.ydss.cn/thread-598321-1-1.html
It seems like there is still a bug at the camera level. Hopefully something will be released soon, also with instructions in English.
i9o said:
There has been indeed something going on since November on this front
http://bbs.ydss.cn/thread-598321-1-1.html
It seems like there is still a bug at the camera level. Hopefully something will be released soon, also with instructions in English.
Click to expand...
Click to collapse
yeah I know, but I think the source code on this is newer.
new version. Seems gps, wifi, heating and other issues have been fixed or at least working better.
http://bbs.ydss.cn/thread-635136-1-1.html
another one, seems more recent. Don't know if it's better tho.
http://bbs.le.com/thread-1692751-1.html
Amazing ROM the one posted right above, I suggest it to all of those who are missing the Cyanogen/Slim.
I will use it as daily driver even if the EUI6 will come out (i guess it will still be better than EUI)
PROS:
1. Cyanogen
2. Really smooth
3. Good battery
4. Good GPS (fastest seen to me)
CONS:
1. Black screen from time to time when closing an activity (nothing major)
2. Wifi is terribad imho --> i'll try WCNSS fix
3. Sometimes i need to double press the power up button to turn on the screen
4. d2tw is not working, d2ts is but only in the status bar (hw home button can be enabled as well)
5. AudioFX crash (intentional?)
6. Dolby Atmos how do you use it??!?
7. There is an app to let the flash blink when a notification is received, personally i dont like it. Green/Yellow/Red led is not working (any workaround?)
Suggestions:
Use root explorer to remove chinese apps (baidu, sugoisearch), i didnt uninstall collapseromer app though. Before doing so install google keyboard.
Default APN may be the wrong one, hence no connectivity.
hi man,
they are 3 links, which is kernel source ?
Have you got CM13 kernel source ?
Hello,
I would like if there is any application similar to Samsung's one for OP3 - https://play.google.com/store/apps/details?id=com.samsung.android.gametuner.thin
Thats designed to manage settings of every game - resolution, details, max FPS etc.. its great for own custom settings to safe battery/max out details when autodetect fails etc..
Im missing this feature when I used Samsung.
If there isnt any - can someone make it or its hard to make?
Thanks everyone!
I'm trying to find if someone ported the apps for all Android devices...but i can't find anything...it seems that is hard to have porting these days..
Hi All,
I decided to do a mini review, in case someone is on the fence with buying the device, or just wants to read a different perspective than what you can find on Youtube about the 9 Pro.
This first post will be a general overview, focusing on changes coming from the 8 Pro. The second will be more development-related, and a deeper dive into the device itself.
The 9 Pro vs the 8 Pro
Coming from the 8 Pro, here are the biggest changes that stick out:
- The screen itself is much higher quality. I used to have black crush as well as a green tint at lower brightness levels on the 8 Pro, but the 9 Pro is free of these issues. Screen gets darker when it's pitch black and no longer burns my eyes out.
- The camera is much better (as advertised). I'm finally able to take photos of my kids running/jumping around and the image is no longer blurred.
- Google Dialer and Google Messages are default. FINALLY. I love the Google Dialer and it's great to see this as the default app on the 9 Pro.
- Battery life is definitely improved vs the 8 Pro, I would say somewhere between 10-20% better.
Setup
It took about an hour to setup from scratch. Yes, I know there is a Oneplus Switch app, but that would rob me from experiencing the setup itself, and I need that. In the past I also had issues with the Oneplus Switch, iPhone backups, etc., so I just prefer to set everything up myself.
Near stock Android experience, with just the right additions. I can tweak to exactly how I like it.
For those who are like me, and want to turn off vibration for everything (since I find it annoying). Go into USB debugging mode, and do:
Code:
adb shell
Code:
appops set android VIBRATE ignore
This disables all standard Android vibrations. If you are finnicky and want to be more granular, or do away with vibrations coming from a certain app:
Microsoft Teams - which I use quite a lot - seems to ignore every single setting I have in notifications, but you can disable app-specific vibrations with:
Code:
appops set com.microsoft.teams VIBRATE ignore
Just substitute "com.microsoft.teams" with the package name you want to turn vibrations off for...
I always disable Sleep Optimization under Battery settings, but keep Adaptive Battery and Enable App Power Consumption enabled.
The screen I always have on QHD+ and 120Hz, and disable power savings in the display setting.
The display
Adaptive refresh rate (LTPO) rocks. This is probably why I'm seeing better battery life. The overall feel of the device is just much smoother than on the 8 Pro (and I was using my own custom kernel on that). Colors are beautiful, the screen doesn't have any tint even on lower brightness, so it's great.
Performance
My primary usage is: emails, WhatsApp, Microsoft Teams, phone calls, camera, photos. I do tons of multitasking, listen to music in the meantime, etc., and not a glitch, no lag.
Multitasking
Snappy, no reloading of apps, everything stays in memory (and I have 8Gb version). Switching on a "regular" work-day between emails, calendar, Teams, Spotify, etc. is so seamless, it's an incredible experience.
Everything stays in memory (it does get cleared overnight to help with idle drain, but I'm good with that).
Camera
OK, it's camera time! It's now been 3 weeks with the phone, let's talk about the camera. Mainly comparing with the 8 Pro.
Camera - general
This rocks. I'm finding that 80-90% of the shots I do turn out great. It's better than the 8 Pro, where I would say 60-75% of the shots turned out great.
Camera - everyday shots
Excellent colors, sharp images, even though I keep the settings on 12 megapixels to ensure better handling of light.
Camera - videos
Just perfect. I'm now defaulting to 4k 60fps HEVC videos, and they all turn out great. No complaints here. Stabilization of videos is perfect as well.
Camera - low light
Low light shots got a massive boost with the 9 Pro. Much better handling, less noise, better colors overall.
That sums it up (for now), do let me know if you have any questions!
And now for a deeper dive...
Let's start with what has changed in the kernel/source code!
- Linux 5.4.y branch! This is incredible, having such a recent LTS kernel on my device. My build system (Manjaro Linux) is also using the 5.4.y branch, whcih is awesome. Of course, the Oneplus is using a more dated, 5.4.61+ tag, while Manjaro is at 5.4.113 currently, but still. Very nice
- ThinLTO and CFI are enabled and working by default. Very nice.
- Compiled with Clang 11 branch, so it catches more errors and warnings, and most of the warnings also seem to be fixed. A very big plus here.
- There is still a ton of unneeded stuff turned on in the kernel, but then again that is stock CAF, trying to cover all bases.
Of course, having both ThinLTO and CFI enabled by default on stock kernel has its disadvantages, namely kernel development. Modules can be force loaded from the vendor partition, but then the kernel breaks due to symbol mismatches - which I am now observing with Omega kernel as well, seeing random reboots when the screen turns off.
In the latest source drop from OOS 11.2.4.4, the Oneplus kernel developers actually removed a massive dmesg hog, which is probably a first. Kudos to Oneplus.
thanks for the detailed review, this will definitely help some with the purchase decision.
looking now forward to the first Omega Kernel alpha
Mar-cel said:
thanks for the detailed review, this will definitely help some with the purchase decision.
looking now forward to the first Omega Kernel alpha
Click to expand...
Click to collapse
We're past alpha, already at beta. One more bug to iron out actually before it's stable...
AFAIK LTPO still doesn't work on 11.2.4.4 or am I wrong?
DashDashCZ said:
AFAIK LTPO still doesn't work on 11.2.4.4 or am I wrong?
Click to expand...
Click to collapse
How do you know?
r4p70r said:
How do you know?
Click to expand...
Click to collapse
I myself haven't researched it but many people on oneplus forums claim they have and that it isn't working as advertised during launch event. It is known that LTPO wasn't working at first on the Oppo find X3 pro when it was released and that they fixed it later with a software update so people assume it's the same with op9pro.
DashDashCZ said:
AFAIK LTPO still doesn't work on 11.2.4.4 or am I wrong?
Click to expand...
Click to collapse
It's working fine. Android's built-in FPS counter is not able to handle it.
DashDashCZ said:
I myself haven't researched it but many people on oneplus forums claim they have and that it isn't working as advertised during launch event. It is known that LTPO wasn't working at first on the Oppo find X3 pro when it was released and that they fixed it later with a software update so people assume it's the same with op9pro.
Click to expand...
Click to collapse
That's what I thought at the beginning. I checked it with the FPS counter from the developer options. There you could only occasionally see that it went down to 60hz. On reddit I came across a post in which someone wrote that it is not visible with the fps counter but you can see via entries in logcat that the Hz goes down. I found entries there for switching to 11hz and 1hz. The one on reddit said he would only have found entries up to a minimum of 4hz. So I suppose that works as promised.
r4p70r said:
That's what I thought at the beginning. I checked it with the FPS counter from the developer options. There you could only occasionally see that it went down to 60hz. On reddit I came across a post in which someone wrote that it is not visible with the fps counter but you can see via entries in logcat that the Hz goes down. I found entries there for switching to 11hz and 1hz. The one on reddit said he would only have found entries up to a minimum of 4hz. So I suppose that works as promised.
Click to expand...
Click to collapse
Indeed it's working fine. I imagine the switch mechanism will be tweaked in the future for more fluidity and smoothness.
@kristofpetho hey man! Sent you a message on Telegram. Just a heads up!
Updated 2nd post with some source code-specific stuff. I will expand it once I get the kernel fully running.
Seeing this kernel is basically all I've ran on OnePlus 8 pro, I'm thinking I might get the 9 pro now, but honestly, this has been one of the only good reasons (so far) for me personally to make the jump. Thank you very much for sharing and thanks for the review
So. Finally. Custom kernel is stable. Release tomorrow if there are no errors in the next 24 hours.
kristofpetho said:
So. Finally. Custom kernel is stable. Release tomorrow if there are no errors in the next 24 hours.
Click to expand...
Click to collapse
How to install with no TWRP?
r4p70r said:
How to install with no TWRP?
Click to expand...
Click to collapse
Kernel manager ( EX,...FKM)
kristofpetho said:
So. Finally. Custom kernel is stable. Release tomorrow if there are no errors in the next 24 hours.
Click to expand...
Click to collapse
I’m assuming you’ll make a post on here?
Is it tomorrow yet?
Shooter7889 said:
Is it tomorrow yet?
Click to expand...
Click to collapse
It was tomorrow a couple of hours ago. Thread '[KERNEL] [OOS] Omega Kernel OOS11 [May 2, 2021]' https://forum.xda-developers.com/t/kernel-oos-omega-kernel-oos11-may-2-2021.4271027/
cultofluna said:
Kernel manager ( EX,...FKM)
Click to expand...
Click to collapse
Does fkm work? It had many issues with op8