yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] user700512:
I've got the irresponsive <Context>, <Home> and <Back> buttons again. It happens while the camera is active.

A very strange UI condition happened shortly after that. When I waked the screen up, it showed only a blue rectangle area with a digital clock at the top 1/3 of the screen and the rest of the screen black. No icons, background, status bar, whatsoever. No swipe or tap actions, no button actions except <Power> - nothing, just a clock. The screen quickly went black after wake up followed by a constantly blinking red LED. There was enough battery charge left (at least 50%) when this happened. Anyway I plugged the charger and upon wake up, the blue rectangular area turned to orange, but still nothing else - only the clock. I had to force power off the device to get it back to normal after power on.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Are you talking about this? It's shown when you put something magnetic near top left of our mobile. It's the flip cover cut off screen. Mobile thought you closed the flip cover. About red LED it could be notification for some other app.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] user700512:
Exactly! That's the screen!

I don't have a cover, however the phone was placed close to one of my laptop's speakers, which would have invoked it.

But, wasn't this condition be supposed to disappear when there is no magnet nearby?

When I took it up it continued to stay, then when I plugged the power cord, it changed its color, but didn't disappear either.

Anyway, now it works as you describe it - appears when there is a magnet over the top left corner and instantly disappears when the magnet is taken away.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
Yes, wait for this to get merged: https://github.com/troop/FreeDcam/pull/134

The device variants are named "K920 (ROW)" and "K929 (CN)" so that you can easily tell which one you have... and FreeDcam right now only recognizes "K920".
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Alexander_Gostev:
when you connect a hard disk (usb device), 5.1.1 was convenient to perform the "copy" of the (device) in (usb device) - was carried out through a file manager CM. You can also do with us? When you connect to the 7.1.1 - is presented built-in file manager from Google, and there is limited functionality. Can you please do that for connection (usb device) in the file manager CM was seen (usb device).
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
No issue with the official lineage os version?

For me it's a big job to reinstall my phone and i want to be sure that this version works like the last CM version 25/12.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
one reboot after 3 days of installation
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
Is it necessary to install 3.0.3.0 twrp version instead of 3.0.2?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
This is still 25012017 version. I haven't upgraded to official version yet.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Alexander_Gostev:
Solving the problem of departures and "black squares" in games (often fly out of the game). dalvik.vm.heapsize - build.prop file. change it from 768m to 512m - then everything starts to operate normally.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] koraba031:
For me after upgrading to lineage, camera is acting strange. Sometimes it works and now when I start the app, I'm getting black screen. The only solution is to power off device and power it back on.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
What about battery life in this rom the maximum screen on time i got is 4.30 hr, in other roms at least 5 hr
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
I'll explain my over 8 and half hours of screen on time. It included,

3.5 hr of book reading with inverted screen.

1.5 hr of full HD x265 movie at a low brightness.

2 hr of YouTube

5 minute gaming with screen recording

2 hr of Internet radio with screen off

1 hr of Quora

Rest misc.

No mobile data was used and wifi was connected the whole time.

So far happy with the battery life on 2401 version. Regularly getting over 6hr of screen on time. My usage could be a lot different than yours. I almost never need to use mobile data. I have observed the battery drain is really high with mobile data turned on. I used to get a little less screen on time before 2401.

This time screen on time was high because of book reading. I figured I can easily get 12-15 hr screen on time with just book reading alone. Maybe UpTo 18hrs in airplane mode.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
you should have at least 8 hours, 5 is good for 700-800$ flag ships from samsung & co., maybe it's time for battery replacement
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
My mobile is only 6 month old, maybe battery life not good because i depend in cellular 4g data most of the time
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
if so then yes, mobile data is causing it
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Yeah, that explains. On full 3G, I barely get 4 hours of screen on time. I have observed that snapdragon chips aren't very efficient (like mediatek) when mobile data is turned on.

Edit: you can switch to 2G when you are not using the device. Battery doesn't drain as fast on 2G.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
Could we add ability to downgrade resolution from qhd to fhd and hd like what Samsung did in note 7 and s7 for saving power?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] :
Setting > Display > Display size
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] AntoSVK:
Hi guys,

I got problem after flashing official build "lineage-14.1-20170131.......zip". Yes, I did full wipe (data, dalvik/art, cache). After all, I stuck in recovery. When I press "reboot system", my phone only boots to recovery. I made backup to usbotg, but after update it cannot mount my flash drive.

Any suggestion?

btw, doesn't matter if I flash from usbotg or internal storage
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
in display size you choose between small, default, large and larger.

What is the relation to screen resolution like qhd, fhd, hd?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] s.magus:
Hello,

is there someone using smartwatch with our device?

I am using Vector Luna watch. Some notifications don't work for me. For example Gmail app, missed calls. After reconnecting the watch I do not get missed notifications. Is it possible to solve these issues?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
What is your TWRP version?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] AntoSVK:
newest 3.0.3

http://xdaforums.com/android/development/recovery-team-win-recovery-project-3-0-t3454739
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
It changes the screen DPI. I think our default is 480 DPI. Stock lenovo ROM had more than 600 DPI (I forgot the actual number).

I have not seen how samsung lowers the overall resolution of the device but keeping the non-native resolution on any LCD display means screwing up with the image quality. Because unlike old CRT monitors, LCD panels have fixed native resolution as real hardware pixels are laid out while manufacturing the display. Keeping the non-native resolution means the processor has post process (called interpolation) to make the image readable. This can have adverse effect on battery life. Or maybe samsung, with low resolution, crops the image to smaller section of the display. This was present in our stock lenovo rom as one hand use option.

Anyway, if you lower screen dpi in display > display size, you will see everything gets smaller and observe more info. Exactly opposite, if you make it large, you will see everything gets big and like upscaled moto E display i.e. less info. (totally not premium). From the battery perspective, large or larger will yield more battery life as the system has to show less contents. But the battery life gain will be very marginal, may not be even noticeable at all.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] slavislavi:
also had reboot on 0131official version, phone row
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
What Samsung does is that they disable individual pixels on the screen (e.g. every 2nd pixel for 1440p->720p) and that results in substantially improved battery life. That's only possible with OLED display panels.

AFAIK there was a vm density command as well as an application (called nomone's resolution changer or sth like that) to change the display resolution... but, that would only make the GPU work less, as opposed to actually disabling half the pixels on the screen.

The option in Settings only changes DPI and has no impact on actual display resolution.

Huh, I never got above 4hrs screen on time, and I'm kinda used to it....

What file system does the OTG-USB drive use (ntfs/fat32/...)? Sth might be disabled in the twrp kernel, as 3.0.3 uses the official Lineage one.

Just hard-reboot the phone (hold the power button for 8+ secs), there is a bug, the reboot option in TWRP 3.0.3 doesn't work.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] AntoSVK:
Somehow i figured it out. I tried another flash disc + maybe hardreboot + reflash and it's working.

Except this "bug", everything seems good. Thank you for this perfect up-to-date ROM
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] seekator:
Electry big thanks for your work . Cm14.1 is beautifull and stable. No problem with Bluetooth or Double tapp. Performance is better than on cm13. Signal and network speed looks better.

Sometimes I had problems with TTS which likes to stop working from time to time but I suppose that problem is with gaps.

Problem with GPS mentioned before by some people still exist. Google maps loses often gps signal, sometimes position , direction is wrong. I had to back to cm13 20160910 , because I need on this weekend my GPS . I tried to replace gps.conf, but it doesnt help. Now I have gps signal in my room what was impossible on 14.1. If you would take a look on GPS signal problem it would be great, because this rom is more friendly than 13. I just love it!

And battery life. I have feelings that is not so great. Normally it was about 25-35% per day, now it is 35-50% per day. Maybe it is a problem again with gaps because I used standard not pico version.

Thank you again!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] evocraft:
Is this GPS file country specific or universal ?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
Yes it will work for all countries.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] slavislavi:
Maybe gps problem depends which region phone is - ROW or CN.

I have gps fix in not more than five seconds - phone is row.

Battery life is also not so great - one day of normal use (calls, texts but navi/gps was off)

Stock 5.0.2 ROW looks also bit faster and more responsive in daily usage (not in any AnTuTu scores)

Have support for window smart cover would be great.

Anyway excellent ROM! Thanks Electry!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] malaga82:
didn't see this thread, good work guys :)

will try ASAP
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
for those of you having issues with GPS, try changing

CAPABILITIES=0x37

to

CAPABILITIES=0x31

in /system/etc/gps.conf
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Drug_Store:
My GPS works well with Sygic, no problems without toutching 30/10 v2.... but I believe on other users reports.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
After 2 days. This ROM works fine!!! GPS works fine like I have described in my last post. During 2 days no bug with the blue led.

Too bad I can not disable a sim as the stock ROM. But no solution. I know...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
Cyanogenmod theme ??
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] freakfun:
a few issues and new build!

Hi electry

I am using your 30-10-16 (2).

Its very nice.

Thanks for all the time and pain you are taking for this device and for all those using it.

One issue is that somethimes blue light of led is constantly lit and screen goes blank. For me this can happen anytime, not necessarily at time of incoming call as a member earlier said.

I need to restart the phone to be back to normal.

Had the issue around 5 times in last 3 days.

Now I tried to update to your latest built of 4-11-16 that showed on checking phone updates.

First the speed was very slow may be around 60-70kbps for downloading, secondly after it did download I tried to update and it took me to recovery but it failed.

Please guide.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] dudan166:
Hi,

installation of 04-11-16 crashed with "Zip signature verification failed!"
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] AntoSVK:
for me update was successful without error
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
What are the modifications? Thanks.

For me the phone works fine. Without blue led after 3 days...
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Alexander_Gostev:
Electry, we can do so?

http://yandex.ua/clck/jsredir?from=...10n=ru&cts=1478447884421&mc=3.346439344671015
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] freakfun:
please provide link for download

Hi after downloading the file through ota again and again, it doesn't upgrade.

Please provide alternative link for download so that I can do sideload.

Many thanks
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Does VoLTE work on this ROM?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Electry:
No idea... volte doesn't work in my country so I can't test it :(

I have modified 4/11/2016 zip and totally forgot about the zip verification.

If you really want, you can sideload it, but un-tick the "Zip signature verification" before flashing it in TWRP.

I'll make a new build probably later today/tomorrow.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
Hi Electry thank you again.

With the last update 20161104 the battery life is worse. There is a strange activity (surestimated) I didn't have this activity before... 15%... It's very important!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] user700512:
slavislavi, delpiero74, I get frequent reboots when the phone is in my waist-pack or in my pocket. I didn't see or experience a single reboot if the phone was on a car stand, on a table, or anywhere an unintended push and hold of the power button may not occur. It might be of some help... :)

I had again the earlier reported clock alarm bug - a non-responsive UI condition after the clock alarm is dismissed. Cannot wake the screen up, no response for any button press/tap (phone appears as powered off without any battery charge, completely dead). This condition disappears immediately if somebody calls you. I noticed that this bug occurs when the phone is being charged and the cable is disconnected while you dismiss the alarm before the screen goes off. :confused:

Changing the Cellular data SIM still crashes Settings, however the change is applied correctly, as before. I repeat the bug report, because I've got a free 500 MB at 4G promo from my 2-nd SIM provider, but I can only connect 3G (H+) through the 2-nd SIM, although in 4G range and with correct phone settings (could be a SIM-card problem).

AntoSVK, I had something very similar (see #543 and #549).
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Drug_Store:
Received OTA notify this morning, downloaded but when entering twrp nothing happend... And can't find the file. Mannualy downloading now.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
What has changed in 20170207 ?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lukowicz:
Hm, OTA update : Verification failed. Corupted or unsecure download :(
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
Not sure, but it's not big of a hassle to do it. Just updated my device to today's daily. So far I haven't had any major bugs (or I haven't noticed any of them). The only thing that goes on my nerves is that when I'm talking to someone, they say that I sound muffled (and crackling - if that is a word). Tried cleaning mic using needle, still having that problem. Could it be software issue / modem drivers?

---------- Post added at 05:17 PM ---------- Previous post was at 05:13 PM ----------

Happened to me too. But I just restarted download and it went fine the second time. I'm on TWRP 3.0.3-0 and automatic install process went OK.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
You can use this app to see all the changes

https://play.google.com/store/apps/details?id=com.vasudevrb.cmchangelog
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
So, yeah..

Bug report:

Camera app crashes when switching from stills to video (the first time). After that it's not showing timer when you start recording. Then I tried to recreate crash by switching from and to video/photo mode - it went OK. But..

Then I tried to switch it to gallery and it crashed again, only this time when I reopen app it only shows black screen and I can't do anything but to exit via Home button.

Cleared Cash, Disabled/Enabled App, still nothing..

Any suggestions?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] user700512:
I had a smooth OTA download and update all the way through to a working phone. No odds from start to end whatsoever.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] koraba031:
Having exactly the same issue. I had to power off my device and turn it back on. Sometimes camera starts working if you start it from lock screen
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
Yup, confirming that.

Camera App [ version 2.0.002 (8a1022c29b-30) org.cyanodenmod.snap ] will start from lock screen. Otherwise it acts completely dead (when started regularly it only shows black screen). Tried powering off the device - didn't do the trick in my case.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] delpiero74:
Electry:please there's something i want to understand : now any Change in this rom in future you make it and upload it to lineage site and they review it OR lineage team who is responsible for make any change
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] koraba031:
Another strange things that I noticed is when dialling someone or on a call, phone goes into DND Alarms only mode and cannot be changed until you hang up
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
I think it's a standard feature from some time.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] koraba031:
Thank you. I's good that it does not affect call waiting
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] denizci535:
Thank you Electry. Rom perfect! Kernel setting or kernel flash?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] slavislavi:
on 07/02 mic is not working in hangout?

After some time (1-2 day of usage) all sounds(alarms/notification/ringtones) are going to minimal volume.

They are very quiet regardless vol settings. Powering off/on phone - sounds are come back to normal.

Can you take a look into?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
[MENTION=6608514]Electry[/MENTION] Just a few questions. Are you in any way involved in development of official Lineage for our device and if not do you know if developers are following this thread and keeping track of reported bugs? Do they work on pre established work flow or what?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Not in any small way but he's wholly managing this official ROM. You can catch his work directly here > https://review.lineageos.org/#/q/owner:electrydev%40gmail.com+status:merged . Unless I missed something, he mostly works at kernel level. I think our guy likes C and pointers very much. :p He had dozens of commits for last 20170207 update. As I'm writing this, he's committed two dozen more changes to the source. These changes will get effective on next nightly which I presume is on tuesday.

If I understand this correctly, electry is a one of the dozen people who makes official team lineage OS. He mostly works towards the hardware specific needs of this mobile. There are other guys who on the other hand work on features in lineage OS which will be applicable across all devices. In simple words, electry is directly involved whereas some other guys are indirectly involved managing this ROM.

We are very fortunate for him. Lenovo had many devices which sold hundred times more than K920 but only K920 of all lenovos out there appears under official support. Thanks to Electry.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
[MENTION=6192002]lockhrt999[/MENTION] Thanks for the info!

I am, as probably all of us are, very grateful for the work he has done in keeping our device alive, and in many ways even better than it was when it came out!! ❤️

The reason I asked is that I was wandering, now with Lineage in picture, how all that process worked, and you answered it on point.

Again, Thanks [MENTION=6608514]Electry[/MENTION] ??
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Kurbatos:
Whether it is possible to fasten the support OMS? What would substratum worked in full measure. The folder in the system should be masquerade. How can I do this, someone tell me?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Alexander_Gostev:
Electry, ispravte please jump in sound player. We hope that you will correct them in the next build. Just noticed that the assembly work 20170207 battery has become weaker than in previous builds.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
What do you mean weaker? My battery holds up pretty well in comparison to all other builds. I'm on 0207 build.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] cyprien T:
DO you know? https://download.mokeedev.com/?device=kingdom

OTG update everyday!!!! Our phone is known!!!!! Thanks electry!!!!
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Looks like they compile everyday with whatever source is available. Don't know why these roms are bigger than LOS official versions by a hundred MB. I think these are unsigned roms.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] denizci535:
Mokeedev :good:
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] user700512:
For the first time I get just 5% of battery use during the night! I started using Greenify and put on list all non-critical apps. I've got a nice flat graph line and it felt like in the old times with the stock ROMs.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lukowicz:
Probably will be unsigned. because I do not install or via OTA or through TWRP because he has not signed. :crying:
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] lockhrt999:
Fresh Tuesday update over OTA.

https://download.lineageos.org/kingdom

Now lineage is providing common weekly changelog which is applicable to all devices>

http://lineageos.org/Last-Week-in-LineageOS/

What’s changed then?

Removed AOSP Soundrecorder and CyanogenMod Screen Recorder, which have been replaced with our homegrown app, dubbed “Recorder”. This handles both sound and screen recording

CM Lineage Wallpapers have returned

New touchscreen gestures interface for devices that support it with customizable actions

Changelog specific to lenovo k920>

Merged: https://review.lineageos.org/#/q/owner:electrydev%40gmail.com+status:merged

Open: https://review.lineageos.org/#/q/owner:electrydev%40gmail.com+status:open

Happy Valentine Day.
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] underr.t:
I'm using LineageOS Changelog app to keep track of changes specific to our device.

Have a great day everyone! ?
[Lenovo Vibe Z2 Pro ROMs, Kernels, Recoveries, & Ot] Alexander_Gostev:
Guys, come all volume fluctuations in the player. It has been updated to version 2017.02.14