yashsingh1/xdaforums huggingface dataset:
[Nexus 9 General] ElementalXY:
Dude hold on a minute before going into conclusions. I own an iPad 3 and honestly I understand the point of view you're trying to point out. However before you access yourself into conclusions that the iPad Air 2 is much more refined note that in the previous iteration of iOS 8.0 and 8.0.1 the OS was completely unusable. There were even updates that confirmed the OS not even launching or apps working to begin with. It was exactly the same problem as the Nexus 9 is facing (no 5.0.x even launched yet) and it took over a month to fix it. The Nexus so far has barely passed the month line and there hasn't been a huge software upgrade like iOS to address the issues that are being solved. Also note that whatever the company and whatever the operating system you're always bound to encounter bugs. So the honest implication of the iPad was after a huge load of bug fixes, which google is currently addressing at the moment. This is like Apple's iOS 7 upgrade which from what I recall had even worse issues than what the Nexus 9 is going through. Do note that Google is not the only agent in this, but developers who are integrating apps and making them compatible with the OS.

PS: A recall would indicate that Google/HTC is UNABLE to fix the problem with its design. That is NOT the case. A recall would mean that the ENTIRE manufacturing process is inefficient and that is NOT the case at all. Chill and enjoy the competition instead of criticizing it. This is good news for you as a consumer that they're addressing the problems both with software and hardware.

One answer bro: Google developers groups are all over the place. Check out the bug reports and how Google employees are answering them in a fast manner. Give it some time like everyone gave iOS 7 time. This is a whole new OS upgrade we're talking about here. I still didn't buy it but until I see that all the problems are fixed like the Nexus 5, I will not hesitate to order it at all.
[Nexus 9 General] ram130:
Thanks. Good points. Agreed. Hence why I'm gonna do a return once Amazon confirms they got my second replacement. So far the third is better overall.
[Nexus 9 General] ayoraider07:
Thank you! All the iPad owners and comments about iPad can be posted in the iPad forum. GTFO, I wanted to learn about getting better battery life on my nexus 9.... So web browsing is a battery killer...

1. Which browser seems to yield best battery life?

2. Which kernel helps browser efficiency?

I think opera(mini) gives me better battery, but I prefer desktop mode, any suggestions?
[Nexus 9 General] Diesel779:
The difference being Apple fix bugs within days, couple of weeks tops. Google take moths.

---------- Post added at 12:56 PM ---------- Previous post was at 12:45 PM ----------

I'm sorry but the hardware issues are far and wide. Google can't expect people to send back 2,3 or even 4 devices before that get a good one. A product recall should have been done on the Nexus 9. Then they should of held off releasing anymore until all the hardware issues were resolved. Then realising a solid tablet as regards hardware issues. They then could of just kept patching software bugs. Like I just said Apple fi bugs A LOT faster than Google.

Can you show me some examples of the iPad Air having the same issues as the N9? Can you show me where Apple released thousands of iPad Airs with the same battery life as a mobile phone? Can you show me where Apple released Air 2's with sunken buttons, extreme light bleed overheating?

I'd just like to ad that I'm now considering going back to a Nexus 9. I love the Air 2 but iOS is way.....Too limiting for me and has made me realise how Apple try and pull you into their bull**** eco-system. I'm so frustrated with the problems the N9 is facing because I really wanted it to be so much more. Regardless, It looks like I'm going to have to put up with the battery life issues because IOS is already pissing me off so my feelings toward it are only going to get worse. Going to order an N9 now, fingers crossed I get a good one.

---------- Post added at 01:47 PM ---------- Previous post was at 12:56 PM ----------

So what do you guys think? Is it worth Sending my iPad Air 2 back and giving the Nexus 9 another shot, or do you think it's better to wait a while? iOS is driving me nuts.
[Nexus 9 General] Divine_Madcat:
Ok kids.. the pointless fighting has been cleaned. Lets try to act like adults again, and keep things civil.
[Nexus 9 General] Gormsen:
Google uses moths? No wonder Lollipop is having hiccups.. Poor moths..

Message has been Baconized
[Nexus 9 General] Diesel779:
Nothing like good old Ad Hominem, hey? Jumping on a typo really is clutching at straws.

---------- Post added at 06:49 PM ---------- Previous post was at 06:42 PM ----------

Have you sent your N9 back yet or are you still testing. If you're still testing; how ar4e things going with it?
[Nexus 9 General] ram130:
No. Still have it and my last replacement. Gonna send the replacement back and wait for Amazon to confirm it.

So far better. Build has improved on the third. I'm mainly pissed at battery life, the stuttering, lag, redraws and heat. But overall seems a little better. Every time I use it I feel more at home. iOS hasn't pissed me off yet. Lol. I stream most of my stuff. And the battery life is making me love it more. Sure it's annoying but the work arounds are not bad. Like using the VLC player. Every os has it's disadvantages and issues to me. Both Android and iOS is workable. I'm even looking into a surface 3 per my friend suggestion. But that price.
[Nexus 9 General] Diesel779:
is is pissing me off. Do you think it would be worth me giving the N9 another try? Or do you think the problems are still too bad? it's really is getting on my nerves but I don't want to get another N9 if I'm still going to be getting 4 SOA. I just don't know what to do.

How did you get VLC on your iPad? It's been removed from the app store.
[Nexus 9 General] ram130:
Never realized it was removed. They do have a VLC streamer. Haven't used it in a while. I can't say yes or no if you should give another try. It is up to to make that final decision and what's right for you. I wanted to try things on the iPad since I never owned one except an iPhone. Didn't expect such good battery life. But now I know what I want from a tablet. I feel more aligned with Android. But don't mind using this mini until things are better. Especially for $350 for 32GB I spent.

I'd try other apps in the App Store to see if they can play the formats you desire. And last I recall. I think you can just drag and drop files to the iPad without iTunes. But I think that was a Linux thing. iTunes isn't bad though. Not a big deal to me. For the users that use these devices I see why they make it a requirement. To keep it simple. But I don't like it simple all the time. Which is why a Moto X is my phone.

Anyway, the N9 will improve. Just don't expect iPad level in certain areas. The build improvements I've seen makes it worth $300-400 now. Until software gets better, that's where I stand.
[Nexus 9 General] USBhost:
You can not just drag and drop files to the iPad

or something big changed on ios 8?
[Nexus 9 General] ram130:
One issue that will piss me off is the screen flickering on low brightness with the N9. :(

I remember doing it in Linux after installing some binaries. Haven't tried it since I moved my music to the cloud.
[Nexus 9 General] Diesel779:
I've done some reading on this the last day or so. Apparently up until iOS 7 you could drag and drop files to and from an iPad from Linux. You just plugged in your iPad, opened the documents folder which, in fact, was the app folder on the iPad, then dragged the file from Linux to the iPad. As a Linux user this get me excited until I realised it's no longer possible with iOS 8. For this and many issues I have with iOS I've decided to send my iPad Air 2 back. I love the battery life and the build quality, but, I can NOT deal with iOS it's really pissing me off. I'm just about to order another Nexus 9.

Edit to add: It was video files I was trying to transfer to the iPad from Linux.

---------- Post added at 08:29 PM ---------- Previous post was at 08:16 PM ----------

So, what kind of battery life and screen on time are people getting on the N9 now?
[Nexus 9 General] ram130:
Maybe try looking for software that will do in the store? I'm sure your not the only Linux user with the issue. Anyway my battery life is 16-48hr with 5-6hr screen.

Current:
[Nexus 9 General] Diesel779:
I've tried everything. The only solution I came up with is share a folder on my Linux machine via the local network and access it from my iPad to watch the videos I want to watch.

That battery life isn't too bad really. Do you think they'll be able to get it much better with software updates? What worries me is that it may actually be the NVidia CPU that's power hungry, and, if that's the case I can't see any major improvements in battery life arriving via ota.
[Nexus 9 General] USBhost:
7-9h
[Nexus 9 General] Diesel779:
Is that with everything stock?
[Nexus 9 General] USBhost:
Nop

custom ROM

costom kernel
[Nexus 9 General] ram130:
They could. But I think it will be minor. I feel it is the CPU too. But then my N7 kind of sucks too. It's on 4hr screen with 1-2day stand by when I use to get 6-8hr screen. But then I look at my Moto X on L and it does reasonable well. I usually come home with 15%-34%. With 2.30mins screen with a day of stand by. If I push it I'd get 3-4hr screen. Same I got on 4.4.4.

Right now I feel 50/50 on any battery improvements. But it seems all devices on L are getting less than optimal battery life.
[Nexus 9 General] Diesel779:
I'm trying to make my decision on whether to get another N9 tonight, but I'm so indecisive. As I said I love the battery life on my Air 2, but I feel restricted with iOS. It's just the little things I miss on an Android tablet. I haven't gotton the Lollipop update on my Moto X 2014 yet but I'm hoping that improves battery life. I guess I've got some thinking to do.

Edit: I'll be sticking with my Air 2. I've just jailbroken it ad I know have all the functionality I want, plus! Awesome battery life :) I will keep following the N9 threads though, and, when things get resolved I'll buy an N9 too.
[Nexus 9 General] eded333:
Stats after a day of usage, lots of PDF reading, internet browsing and light gaming (some Amazon buying too :p).

Edit:

For the people that don't know how to read the stats, I have left after a day of use, 60% of battery with 4 hours of screen time, so yeah, shockingly good :D
[Nexus 9 General] Diesel779:
That looks pretty good to be honest.
[Nexus 9 General] chrisnewton:
Disagree, 4hrs on screen time is shocking
[Nexus 9 General] eded333:
4 hours of screen time and 60% of battery left, so yeah it's shockingly good I guess :p
[Nexus 9 General] Diesel779:
Are you having any overheating or lag issues?
[Nexus 9 General] eded333:
I have screen redraws from time to time, seems like when heavy multitasking android L loves to kill the launcher, although I find it a non issue as the redraw is fast it would be nice to have an option to have an aggresive launcher profile so that it wouldn't get killed on memory intensive situations.

I don't find lag an issue except sometimes on chrome which is to be expected when loading multiple web pages and working with 8+ tabs, although its little and goes away after the web page is or are loaded.

For the overheating, I don't think the tablet is overheating. It gets warm, but I don't seem to get sings of throttling. I had a motorola defy in which the battery could hit 65º easily while gaming or just using Gmaps and my nexus 4 throttled like a mother****er :p, this dosn't, at least for me.

I spect some of the issues to be ironed out, as the redraws and some of the lag on chrome, but when multitasking and heavy chrome usage it will always "lag" a little, it even does on my desktop and I'm using an i7 3770k and 16 gigs of ram. I also find the heating normal, don't consider it overheating at all if I dont find sings of early throttling, maybe I'll do some tests when I have some time, anyway it's a powerhungry tablet with a high tdp, big screen and big battery, it will get warm, I don't find it uncorfortable.
[Nexus 9 General] Diesel779:
Thanks for the info.
[Nexus 9 General] bblzd:
Continuing at that rate it would end up with roughly 10 hours SoT over 5 days of idle. Not bad at all.

What brightness level? Thanks for sharing.
[Nexus 9 General] eded333:
I'm with the auto brightness on but the slider is at 20%.
[Nexus 9 General] chrisnewton:
Sorry didn't realise that was with 60% left!
[Nexus 9 General] Chyeo1979:
That's amazing battery life, you're on stock android?

Not sure if you can try mainly surfing on chrome and see what's the difference.
[Nexus 9 General] aleandre1974:
I just finished yesterday a run over two days and over 9 hours SOT !!

The trick was to use the battery saver mode... I just hope Google didn't lie to us with their announced battery life, "forgetting" to say that was in battery saver mode !!!!

On the bright side, the tablet felt generally still responsive enough for most tasks, so fixing the governor might bring almost the same battery life to the normal mode, albeit with a slight performance hit I would be willing to take as the thing is plenty fast already.

My usage was 80% web surfing with Firefox, a bit of reading PDFs with Moon Reader, 10 minutes of Need for speed, about an hour of Dropcam trying to spy on a mouse coming to our house :). The run finished at 2% and 9h11 minutes, so shortly after the screenshot was taken.
[Nexus 9 General] USBhost:
A good 3h watching on Netflix

according to the picture

I can get lol about 13h watching on Netflix lol
[Nexus 9 General] nullzwo11:
Videos are not that battery sucking. Browsing is the main problem.

Just btw, this is my current battery stats.

It is just a light use with email, facebook, 9gag, pdf reading, some light gaming (1hour) and a little bit of music plus browsing on chrome beta. But i'm fine with that. 4h9min SOT
[Nexus 9 General] borchgrevink:
Any way to see what is creating wake locks on Lollipop without root? Got some weird wake locks while not using at all.

https://www.dropbox.com/s/nncd8bhj45imk3d/Screenshot_2014-12-02-16-30-25.png?dl=0
[Nexus 9 General] aleandre1974:
Borchgrevink, your wifi seems to be on all the time, may be a good idea to change that. In doing so, the offending app will stop polling.

---------- Post added at 07:58 PM ---------- Previous post was at 07:54 PM ----------

This is very good, but your wifi is mostly off all the time on the screenshot you posted. Did you also do something specific to disable notifications, by chance. I feel the problem is that the tablet keeps the cpu too high (510 mhz minimum, but easily 1500 mhz just touching the screen) even when doing nothing, so stopping wifi and thus preventing apps to poll their remote servers and put up notifications could have a tremendous effect on battery life.
[Nexus 9 General] borchgrevink:
Strange. Wifi is turned off at night, but is shown as on. Don't you guys have it on at the day to get notifications and stuff?

Edit: Have now set wifi to sleep when locked, it still never turns off. Suggestions?
[Nexus 9 General] aleandre1974:
I have it off when unplugged and unused, and it appears like that on my battery graph.
[Nexus 9 General] borchgrevink:
It appears on all the time?
[Nexus 9 General] aleandre1974:
No. Only when used.
[Nexus 9 General] eded333:
Yeah, I only enable wifi while using the tablet, notifications are always on. It seems the interactive governor on the nexus 9 is quite agressive and bumps quite a lot the cpu, but that isn't necesarily wrong or bad, 1500 mhz isn't bad at all and it's quite normal, the same happens on all the other phones/tablets I have owned, not to 1500mhz but to a mid point between lowest and max state. It would be worst if we had ondemand. I wouldn't mind a powersaving mode not as aggresive as the one implemented, without the change of color and keeping the animations which are disabled on the powersave mode which is the bigest offender for me, thats why I dont use it, although I've tried gaming with it and everthing is still plenty smooth.

I'm sure that a change in the governor to a Powersave or a Conservative one would be more than enough as the nexus 9 has plenty muscle.

There is a thread here about changing governor settings ----> http://xdaforums.com/nexus-9/help/set-governor-settings-using-shell-t2951402

Maybe when root dosn't requiere flashing a custom boot.img (which I've read it's been worked out already http://www.xda-developers.com/android/supersu-beta-lollipop-root-stock-kernel/) I'll do some testing.

For the wakelocks, uff that seems bad, there's some app which is a big offender, don't know of any wakelock detector without the need of root, although there is a workaround for Kitkat users without root using https://play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector&hl=es it's on their description, check if that works for u and uninstall the bad behaving app.
[Nexus 9 General] mk92595:
On pace for 7-8hrs OST
[Nexus 9 General] team56th:
The battery behavior is strange to say the least. It charges pretty fast when turned off. The battery life itself is also good. But it just can't seem to charge while I am using it. So I am making sure the device is charged when I sleep. Not a huge problem, but no tablet I used were like this.
[Nexus 9 General] giant22000:
I'm extremely happy with the battery life of my Nexus 9. I'm currently using Lollipolooza ROM with Faux Kernel using Faux's recommended settings. This is 99% web browsing with a minimal amount of YouTube.

[

Sent from my Nexus 9
[Nexus 9 General] di11igaf:
You can root by fastbooting twrp recovery then flashing su in recovery, don't need to flash any boot.img, but will have to flash recovery
[Nexus 9 General] nullzwo11:
I'm also very happy with my batterylife. I used it since sunday for everything you can imagine. Brwosing, music, some gaming, PDF, facebook....
[Nexus 9 General] Chyeo1979:
When on power saving mode, I found the temperature do not rise so high when using chrome beta. Anybody knows why?

I know it disables many functions during power saving but what is it that prevents the temperature spike when using the notorious chrome?
[Nexus 9 General] cor_mann:
In power save mode, I think the CPU is capped at 1020. The reason Chrome heats it up is because the kernel jumps to max frequency each time we touch the screen. Of course, we touch it constantly while surfing the web. With a lower max frequency, the CPU temp doesn't increase as much.
[Nexus 9 General] JDR man:
i also have the same issue on my HTC one, use another charger and it works fine! Try it! ;)
[Nexus 9 General] Diesel779:
In those screenshots it's showing you in power saving mode. Was power saving mode enabled for the whole charge, i.e. Since Sunday?
[Nexus 9 General] nullzwo11:
No, power saving mode was activated at 15% of battery.
[Nexus 9 General] oldswe:
2 minutes clash of clans -> 4% battery drop . this is not good.
[Nexus 9 General] Dr. Hurt:
I'm getting around 6-7h of browsing with stock kernel/ROM

What really surprises me about this tablet is the CPU governor. The 2 cores are ALWAYS on, and both have a minimum frequency of 510MHz.

It should have a minimum frequency of 200MHz and disable the second core when there's no need for it.

I wonder if this has to do with Dynamic Code Optimization.
[Nexus 9 General] Chyeo1979:
I really want to just turn on the power saving mode but why must there be the two ugly orange bars? Google really not giving us any options to its lousy battery man :mad:
[Nexus 9 General] ElementalXY:
After playing around with lollipop for a bit I have to admit that it's not the CPU. Lollipop and the kernel that google developed has a lot of bugs/mods that need to get fixed and especially with the RAM. Heck for even wifi there are bugs that need to get reported along with applications still having some serious compatibility problems. I would hold out opinions just like people held out on opinions for iOS 7 until it gets stable.
[Nexus 9 General] ram130:
The new 5.0.1 has improved things. So far haven't seen any redraws and heat is better.
[Nexus 9 General] ElementalXY:
Can you update us on the battery life please as well? Would be great!
[Nexus 9 General] ram130:
Sure. Ok the heat returned but like I said before. Not bad at all and seems more stable. Better. As for battery, too early to call but I feel it's the same. Will know more after this cycle and my next cycle. Stand by seems to be holding steady at 0.3%/hr or loosing 3-5% in 12hrs with wifi on. And 2% with wifi off in stand by.
[Nexus 9 General] davidtrs:
I'm waiting for the next battery generation because I see the current technology don't allow to advance the smartphones
[Nexus 9 General] ElementalXY:
Do keep us in touch I'm actually looking forward to hearing from you especially because of your previous critiques. But from the 5.0, hasn't standby improved quite a bit in this one? Because from what I've heard so far in this thread it hasn't been doing so great on that.
[Nexus 9 General] darkchazz:
Noticed some interesting behavior while browsing with chrome:

Animated (GIF) Ads are causing the CPU to jump to 2ghz+ even when you are sitting idle on whichever website it is. Causing excessive heat and battery drain.

Tried websites with static Ads or no Ads at all and then the CPU stayed at min frequency on idle and jumped to the input-boost frequency when touching the display and scrolling.

I will try blocking Ads and see if that may improve web browsing battery life and heat.
[Nexus 9 General] Cheater912:
This thing dies after being idle for less than 24 hours. Sucks =/
[Nexus 9 General] Gormsen:
Mine idles very well and doesn't lose much. Either it's a faulty device or the blame is on you.. Before going ahead posting something like that, you really should check your wakelocks.

Message has been Baconized
[Nexus 9 General] Generalhero:
mine too.

i have actually had a very good battery life, at least i thougt it was, the battery lasts at least 2 days, its very difficoult to run out in one day
[Nexus 9 General] Cheater912:
Must be a faulty device because it happens on stock with no other apps installed. Bootloader is still locked.
[Nexus 9 General] Gormsen:
Here's mine, 1 h 15 m SOT with Real Racing.. Could be better, but I think it's okay :)

Smashed down on the mighty Nexus 9
[Nexus 9 General] eded333:
Uhmm... Found a wakelock with the app "stickmount" for USB otg mounting. My tablets wouldn't deep sleep with it installed.
[Nexus 9 General] Ramrod421:
That's not my experience at all. Mine will last for a week at idle, easy.

The other day I had 4.5 hours of screen time and still sitting at 65% battery. This thing is getting really good!
[Nexus 9 General] ram130:
Ya. Wish I could say it's good. Returning.
[Nexus 9 General] nullzwo11:
Hmmm there has to be an issue with an app or with your wifi. I can't explain THAT bad battery.
[Nexus 9 General] ram130:
Yep feel the same. Wifi is fine. The one in screen shot was me traveling around from work. Hardly used it as you can see. Frankly should have been at 70% or 80%
[Nexus 9 General] ahhahh:
Hi, all!

I'm also experiencing bad battery life with my nexus 9. It averages 4 hours SOT, just browsing, with automatic brightness. It also gets very hot, becoming uncomfortable to hold. GSAM Battery Monitor reports battery temperature to be 40-41º C (aprox. 104ºF).

Have tried several browsers, with the same result..

I have observed different results depending on the specific webs being browsed (but no more than 6 hours SOT browsing 'good' ones, battery temperature gets to 32-33ºC). One of the 'bad' ones is just this forum on xda. Those of you with good battery life, could you please browse this forum for a while and tell me your results?

I'm thinking of asking for a replacement, but I'm not sure if this is a software issue or not.

Thanks in advance.
[Nexus 9 General] Hiro Nakamura:
Hey there,

you can try to use an adblocker. It helps a lot while browsing. If you are rooted you can just use the adaway apk. It's easy to find on the internet.