[ROM][UNOFFICIAL][12L][EAS][SM-T820][SM-T825][2022-07-15] LineageOS 19.1 for Galaxy Tab S3

[Malykont]

After updating to 6/11 the fingerprint scanner stopped working. Are others experiencing the same?

Also, volume from the speakers seems low. I have to crank it up most of the way (3/4 from max volume or so) watching YouTube to get a normal voice level. Is there any way to boost this?

 

[vonschau]

Finger print scanner works OK here (never very good). Sound volume no complains

 

[Zatoichi.88]

What about ram expansion? Is it possible to use this feature in this rom?

 

[Awesometic]

After updating to 6/11 the fingerprint scanner stopped working. Are others experiencing the same?

Also, volume from the speakers seems low. I have to crank it up most of the way (3/4 from max volume or so) watching YouTube to get a normal voice level. Is there any way to boost this?

Are you update it from the first version? If so, maybe you can follow this instruction.

If you are using the first version (220320), you have to clean install to this version or you may fail to unlock the screen , you have to boot into TWRP and remove the file `locksettings.db` under `/data/system` directory. This will resolve the unlock failure issue after dirty-flashing it.

-> https://forum.xda-developers.com/t/...-19-1-for-galaxy-tab-s3.4418855/post-86605955

What about ram expansion? Is it possible to use this feature in this rom?

As far as I know, it is not implemented for the custom ROMs. Is there a ROM on XDA? Then I will look into that.

 

[Zatoichi.88]

As far as I know, it is not implemented for the custom ROMs. Is there a ROM on XDA? Then I will look into that.

If you can add this feature it ll be great, as you know 4gb ram is not enough

I'm not sure but I saw something, let me share with you:

1) https://forum.xda-developers.com/t/rom-pixelextended-v2-1-for-miatoll-android-11.4162773/
OGHyperion's second post. It says:
* Increase ZRAM to 2GB
* Tune zram performance

2) https://forum.xda-developers.com/t/...ng-ota-updates-for-s8-s8-note8.4370377/page-8
Ivan_Meler's post. It says: Improved zram performance and enabled zram writeback

3) https://forum.xda-developers.com/t/...ribute-for-google-pixel-4a-a11-a12-l.4258269/
momojuro's first post. It says:
Increase zRAM's disksize to 4GB (from the stock 2GB). Apps can be easily memory intensive nowadays...

4) https://forum.xda-developers.com/t/custom-rom-for-sm-m015g-f.4313567/
(Sri Lanka)'s first post. It says:
*Increased Zram (Swap) to 4GB

5) https://forum.xda-developers.com/t/...gcam-performance.4219081/page-8#post-85763431
Sjll's post. It says:
1012 Update:
Enable 4GB Extended RAM/Virtual RAM/Swapfile ZRAM.

6) https://forum.xda-developers.com/t/...-06-2022-sm-n960f-fd-n-sm-g96xf-fd-n.4244747/
AlexisXDA's first post. It says:
Protect Battery option and RAM Plus Enabled

7) https://forum.xda-developers.com/t/...-v7-4-oneui3-1-updated-on-10-05-2022.4239991/
Subodh.993435's first post. It says:
RAM Plus Workaround For supported kernel

And so on...

 

[bmwdroid]

After updating to 6/11 the fingerprint scanner stopped working. Are others experiencing the same?

Also, volume from the speakers seems low. I have to crank it up most of the way (3/4 from max volume or so) watching YouTube to get a normal voice level. Is there any way to boost this?

Both fine on my T825 as well

 

[Malykont]

Thanks for all responses. I flashed 6/11 on top of the previous Alpha release without formatting everything, looks like that's what I'll do when the next update comes out. I'll check the suggested workaround to get the fingerprint scanner working again in the meanwhile.

The volume was low on the Alpha as well though. It is not like there is no sound coming out from the thing, just that on most devices (Pixel 3XL, laptops, etc.) I don't have to go above 1/3 volume to get a reasonable noise levels out.

 

[bmwdroid]

@Awesometic fyi: my T825 had no more freezes or necessity to force reboot since I didn't turn off WiFi any longer. Until then sometimes more than trice a day.

Today I've noticed that headphone jack output is significantly lower than speaker or USB output.
The last two can be loud enough.
Headphones volume via jack is on max setting less than half as loud like it's on USB (same headphone).
Do you know which parameter in mixer_paths_tasha.xml I have to change to pump up jack loudness?

 

[Awesometic]

If you can add this feature it ll be great, as you know 4gb ram is not enough

I'm not sure but I saw something, let me share with you:

1) https://forum.xda-developers.com/t/rom-pixelextended-v2-1-for-miatoll-android-11.4162773/
OGHyperion's second post. It says:
* Increase ZRAM to 2GB
* Tune zram performance

2) https://forum.xda-developers.com/t/...ng-ota-updates-for-s8-s8-note8.4370377/page-8
Ivan_Meler's post. It says: Improved zram performance and enabled zram writeback

3) https://forum.xda-developers.com/t/...ribute-for-google-pixel-4a-a11-a12-l.4258269/
momojuro's first post. It says:
Increase zRAM's disksize to 4GB (from the stock 2GB). Apps can be easily memory intensive nowadays...

4) https://forum.xda-developers.com/t/custom-rom-for-sm-m015g-f.4313567/
(Sri Lanka)'s first post. It says:
*Increased Zram (Swap) to 4GB

5) https://forum.xda-developers.com/t/...gcam-performance.4219081/page-8#post-85763431
Sjll's post. It says:
1012 Update:
Enable 4GB Extended RAM/Virtual RAM/Swapfile ZRAM.

6) https://forum.xda-developers.com/t/...-06-2022-sm-n960f-fd-n-sm-g96xf-fd-n.4244747/
AlexisXDA's first post. It says:
Protect Battery option and RAM Plus Enabled

7) https://forum.xda-developers.com/t/...-v7-4-oneui3-1-updated-on-10-05-2022.4239991/
Subodh.993435's first post. It says:
RAM Plus Workaround For supported kernel

And so on...

Oh, thank you for researching.
It seems there are two types of "plus" memory.

1. ZRAM
2. RAM Plus

First of all, fortunately, I have already enabled ZRAM for our device.
I merged essential/tweak patches from LOS's kernel and it uses OnePlus 3 script when it comes to enabling ZRAM at the boot time. Consequently, it spaces 2 GB for the ZRAM.

And the RAM Plus, it seems it is only supported when the original firmware supports it in advance. The OTA firmware support implies that the kernel also has the feature for that.
So I think it is very hard to port that feature to ours.

 

[Awesometic]

@Awesometic fyi: my T825 had no more freezes or necessity to force reboot since I didn't turn off WiFi any longer. Until then sometimes more than trice a day.

Today I've noticed that headphone jack output is significantly lower than speaker or USB output.
The last two can be loud enough.
Headphones volume via jack is on max setting less than half as loud like it's on USB (same headphone).
Do you know which parameter in mixer_paths_tasha.xml I have to change to pump up jack loudness?

I have found which parameter controls the headphone volume and applied a new patch to my device tree.
And I also created some patches, after finishing the test I will release the new version.
I think it'd be great if will have a July 2022 security patch.

 

[Stogie87]

Sounds very good!

 

[Dwightsch]

Hi awesometic. Thank you again for your great effort.
Been using this rom since last release. Idle battery drain, overall performance regarding everyday tasks are unbelievably better than the official rom.
I just have a question, i constantly get errors for QTI Power HAL and WIFI Vendor HAL errors in logcat. Do you know anything about this or have i done something wrong?

-Plus while using the stylus in apps like xodo or even testing drawing apps with touch (for testing) some wierd unexpectable glitches and lags happen when device resources seem not to be the bottleneck. Is it related to GPU rendering of these vectors and stuff or something else wrong ? Have you encountered this using apps like xodo?

-if it's just a matter of inclusion, can we have Wireguard kernel module?

One other request, can you include AOSPA tweaks to the rom in the future? I don't know much about it but evidently it's very smooth and performs great on mediocre snapdragon SoCs. I can attest to that with a very alpha build on my old xiaomi k20 pro.

Thank you again so much for resurrecting this device
Wish you all the best

 

[Zatoichi.88]

Oh, thank you for researching.
It seems there are two types of "plus" memory.

1. ZRAM
2. RAM Plus

First of all, fortunately, I have already enabled ZRAM for our device.
I merged essential/tweak patches from LOS's kernel and it uses OnePlus 3 script when it comes to enabling ZRAM at the boot time. Consequently, it spaces 2 GB for the ZRAM.

And the RAM Plus, it seems it is only supported when the original firmware supports it in advance. The OTA firmware support implies that the kernel also has the feature for that.
So I think it is very hard to port that feature to ours.

You are right there personally I don't even notice much difference enabling zRAM to tell if is activated. Can you share how to disable it?

Actually if we can ''find a solution for RAM Plus'', it ll work.

Otherwise zRAM doesn't make any sense.

If we are looking for more ram space maybe we should use Kernel samepage merging (KSM) if our kernel supports, it should be in performance memory management.

As you know with Android, there is no swap partition, and therefore brings zRAM also no performance boost.
The only thing that brings zRAM is more ram. Compressed by the enlarged so to speak of the available memory. That's on devices with little RAM <512mb also pretty useful. After you activate the zRAM also has two disadvantages. The encoding and decoding using CPU time, which in turn has higher power consumption. Despite its name, zRAM has little to with RAM except that it uses it. zRAM is a block device in ram which can be used only for swap purposes. It acts as a swap file however is not on disk but in ram where the blocks are compressed, so not using the size they would use on uncompressed devices, like a disk.
Roughly one can say (For devices with more than 1gb ram): Without zRAM: + CPU Performance | + Battery | RAM
With zRAM: CPU Performance |-Battery | + RAM
Check whether you can zRAM runs in the terminal with free or cat/proc/meminfo

 

[etere]

... I don't know.... I use the excellent latest version and bar aside, everything works wonderfully..... until I decide to leave the tablet in idle: reboot continue! If, on the other hand, I turn it off every time and the next time I use it again, it works regularly!

 

[Awesometic]

Hi awesometic. Thank you again for your great effort.
Been using this rom since last release. Idle battery drain, overall performance regarding everyday tasks are unbelievably better than the official rom.
I just have a question, i constantly get errors for QTI Power HAL and WIFI Vendor HAL errors in logcat. Do you know anything about this or have i done something wrong?

-Plus while using the stylus in apps like xodo or even testing drawing apps with touch (for testing) some wierd unexpectable glitches and lags happen when device resources seem not to be the bottleneck. Is it related to GPU rendering of these vectors and stuff or something else wrong ? Have you encountered this using apps like xodo?

-if it's just a matter of inclusion, can we have Wireguard kernel module?

One other request, can you include AOSPA tweaks to the rom in the future? I don't know much about it but evidently it's very smooth and performs great on mediocre snapdragon SoCs. I can attest to that with a very alpha build on my old xiaomi k20 pro.

Thank you again so much for resurrecting this device
Wish you all the best

Thank you

- Yeah for me those messages appear in my logcat too. Fortunately, it may imply there are some features that cannot be activated but it seems not harmful.

- I don't have experience with Xodo, I will try and will look into why it happens.

- I have merged Wireguard driver and its improvement patches from LineageOS kernel. It should work well.

- AOSPA tweaks, yeah I can apply them. Can you tell me a little about the patches AOSPA provides?

 

[Awesometic]

You are right there personally I don't even notice much difference enabling zRAM to tell if is activated. Can you share how to disable it?

Actually if we can ''find a solution for RAM Plus'', it ll work.

Otherwise zRAM doesn't make any sense.

If we are looking for more ram space maybe we should use Kernel samepage merging (KSM) if our kernel supports, it should be in performance memory management.

As you know with Android, there is no swap partition, and therefore brings zRAM also no performance boost.
The only thing that brings zRAM is more ram. Compressed by the enlarged so to speak of the available memory. That's on devices with little RAM <512mb also pretty useful. After you activate the zRAM also has two disadvantages. The encoding and decoding using CPU time, which in turn has higher power consumption. Despite its name, zRAM has little to with RAM except that it uses it. zRAM is a block device in ram which can be used only for swap purposes. It acts as a swap file however is not on disk but in ram where the blocks are compressed, so not using the size they would use on uncompressed devices, like a disk.
Roughly one can say (For devices with more than 1gb ram): Without zRAM: + CPU Performance | + Battery | RAM
With zRAM: CPU Performance |-Battery | + RAM
Check whether you can zRAM runs in the terminal with free or cat/proc/meminfo

Great analytics

I agree with you. But I think we need zRAM anyway because recent resources from the various applications are too large. So I enabled zRAM even though it consumes more battery and reduces its performance slightly.

But yeah, we still can disable zRAM. You have to 'root' the device, then you can disable zRAM using a kernel auditor app.

 

[Awesometic]

The new version is uploaded.

With this version, I have added support for Sony DualShock 4 gamepad. I confirmed it's working, simply using the touchpad on it and the buttons and it is quite interesting.

And I increased the headphone jack volume too. I think now it gets enough to listen to something but I need feedback from the users.

Check out changelogs, and enjoy the new ROM.

 

[bmwdroid]

@Awesometic thx very much.
Kind of clean (wiped all but Data) installed flashing ROM, Gapps+Magisk.
Headphones loudness better but could imo still be increased compared to LOS18.1 on I9195.
Coffee is on its way (didn't know paypal ads 20% ).

 

[Awesometic]

@Awesometic thx very much.
Kind of clean (wiped all but Data) installed flashing ROM, Gapps+Magisk.
Headphones loudness better but could imo still be increased compared to LOS18.1 on I9195.
Coffee is on its way (didn't know paypal ads 20% ).

Thank you

How much do you think about the headphone jack volume? Increasing about 10% could be enough?

 

[bmwdroid]

Thank you

How much do you think about the headphone jack volume? Increasing about 10% could be enough?

Actually I think quite a bit more might be even better.
When I compare (listening via Radiodroid to the same station) the 2 scales I'd say that half on I9195 is just near max on T825.