yashsingh1/xdaforums huggingface dataset:
[Nook Color Android Development] hetzbh:
The DPI issues:

I'm running RC4 of CM7. Sound and video works great, but I still have a major issue: the DPI issue.

It seems that many apps, when the DPI is set to 161 appear small. Setting the DPI to 160 fixes them, but then I cannot view Youtube videos at all.

Any suggestions what can be done about it?
[Nook Color Android Development] Adam_v1:
Personally I noticed quite a improvement in battery life by renaming Phone.apk and TelephonyProvider.apk. I normally forget about it for a day or two after upgrading to a new CM7 nightly (normally only bother with maybe one upgrade a week normally) and only remember when I notice that my battery life has been poor so I have seen the difference it makes 3-4 times now.

I often take my Nook with me for the day but often will not have the free time to use it and when I get back home after about 10 hours of doing nothing at all normal battery remaining is about 85% because I never bother to turn the wifi off but if I forget to rename the apk's then its more like 70% after the same period of time and not being used at all. I even notice better battery life when I'm using it with the apk's renamed as I will get 13-15% drain per hour when reading manga with them and 10-11% drain per hour with them removed.

I have even tested this with about 1 hour 45 minutes of reading right after pulling it off the charger with the apk's intact and being down to 75% battery and thinking that was a bit much and remembered I had upgraded and not disabled them so I renamed them and then rebooted and after another hour of reading I was down to just 65%. You could see plain as day the change in the angle of the gingerbread battery use meter right after the reboot.

So you may say its been disproven but I know the real difference it makes for me so I would highly recommend you give it a shot before saying it does not work. Its a couple seconds spent renaming files and a reboot so its not even like its some involved process.
[Nook Color Android Development] lafester:
only suggestion is to keep trying different dpi settings until you find one that you like.
[Nook Color Android Development] notinterested:
Its all in your head dude. Its not even remotely possible it had a real affect on your battery life, not at all.

It could have been a million other things draining your battery faster but it was most certainly not those apks. You could have opened the battery history and seen this for yourself before claiming the placebo is what did it for you.
[Nook Color Android Development] Adam_v1:
Not in my head, this is exactly what my Nook is telling me.
[Nook Color Android Development] dalingrin:
I get ~1% battery drain per hour on standby without any modifications beyond my kernel OC.

Verify you have disabled compatibility mode in spare parts.
[Nook Color Android Development] RoboRay:
There is a great thread for people who still think removing the unused, unreferenced and never even actually run phone apks is the pathway to battery nirvana.
[Nook Color Android Development] Adam_v1:
Well sorry to derail the thread, just pointing out that it seems to of made a difference for me for whatever reasons and that maybe it might be worth it for others to try at least once and see if it makes a difference.

As you said, if they are "unused, unreferenced and never even actually run phone apks" (funny the constant FC's would tell me that is not 100% true) then there is nothing to be lost trying it as you will just flash them back on with the next nightly.
[Nook Color Android Development] notinterested:
Others have tried it and debunked it. It costs time, if nothings to be gained why waste your time.

Its 100% placebo.

the research has been done, its been disproven if you want to argue it bring something to the table that shows otherwise or just quit arguing.
[Nook Color Android Development] MACLUIS1:
I set mine to 190 and, besides the occasionally black screen, is running beautiful.
[Nook Color Android Development] luciferii:
I wouldnt mind the battery issues at all if when the nook is charging it didnt make what you type come out looking like youre having a seizure.

Sent via Tehduck Uberdistro Encore RC4 n.33/Tapatalk Pro
[Nook Color Android Development] Adam_v1:
OK, challenge accepted. I just flashed RC4 back over my current setup and will try testing battery life over the next few days and then report back. Maybe we will see that it was all in my head or that it was coincidence that flashing a new build of CM7 on here made my battery life worse until I renamed the apk's.

As for it being disproven all I saw in that linked thread was that ONE GUY actually tested it on two nooks (his and his wives) and found no difference and the rest was just hearsay on both sides.

For all I know it could be app related or something else that does not show up on every Nook because as I said almost half the people reporting back seemed to think it was helping them even if as you said they did not have solid proof.
[Nook Color Android Development] paleh0rse:
1. Reset DPI to 161

2. Open Spare Parts app

3. Uncheck "Compatibility Mode"

4. Reboot

5. Try the problem apps again -- most should now be fullscreen.

:)
[Nook Color Android Development] Foetus:
Does "most" include Google reader? ' Cause it still looks jacked up on mine. :(
[Nook Color Android Development] dalingrin:
It is one of the only apps that has issues.

I have to wonder why you'd want to use the app. Try the mobile site if you haven't already. The mobile website is much better to me. With the reader app you have to open a browser to read the full article and you can't open multiple articles at a time. I prefer to be able to open articles in background tabs. I've always felt like the Google Reader app is a crappy version of the mobile site.

To each his own though :p
[Nook Color Android Development] woot1524:
I know it's been stated earlier in the thread, but I'm having a slightly weirder experience with fixing BT.

whenever I boot my nook, BT will not work. I get the BT icon for an instant then it just shuts down. Now here's the interesting part. Fixing permisions in rom manager does not work for me. I'm forced to boot into CWM and fix permisons that way. Once done and rebooted, BT will turn on and off just fine untill my next reboot. Then I'm forced to do the whole dance again.

Not *****ing, just thought this might help you track down the issue.

BTW. Running:

CM7 tablet-tweek bug-fix-1

4-4-2010 OC 1.1Ghz

P.S.

Yes I've tried wipeing Dalvik-cache and cache. I have not wiped /data (Well not since n13 or so). I'd rather deal with doing my BT dance then reinstall and setup over 180 apps.
[Nook Color Android Development] Bahnzo:
This looks like what I need to do, because.......

This doesn't seem to work for magazines, only books.
[Nook Color Android Development] Bahnzo:
As far as this whole argument about battery life goes, I've been using mostly the auto-nootered mod for my nook, and the battery life is MUCH better than with CM. I've had my fully charged NC open for maybe 45mins now, and it's already at 88% just reading this forum.

That's worrisome because (as has already been said) the battery has a finite charging life. And if the battery can't be replaced, then that means my nook will be useless after just over a year at the current rate that I recharge. Something to consider when using this that I don't see anyone talking about.
[Nook Color Android Development] Divine_Madcat:
While it was more popular, i will point out that there is nothing about our battery that really makes it "non replaceable". WE have seen plenty of other devices with non replaceable batteries get fixed (iPod), and we have the advantage of a device that is easier to take apart. So yes, it is a concern, but i am sure when batteries start dying, a replacement will be quickly found; it is a standard type of battery afterall..
[Nook Color Android Development] Canadoc:
Not really the point. Better to fix the problem with sleep then get everyone to go rip apart their tabs in 8 months to replace the battery

From 1.1 Nook Color with 1.1 ghz overclock
[Nook Color Android Development] derekr:
Re battery life and the telephony files, I'm using mad-murdock's tablet tweak version of CM7 (04/04). Battery life was not good.

Late last night I looked at the battery history (via circle battery widget) and found that the telephony apps were VERY active and together showed more battery usage than the android os! So I did the old rename trick on mms.apk, phone.apk and TelephonyProvider.apk, and lo and behold no more telephony battery usage after sleeping overnight and two hours use this morning!

I don't know what to say to those who blatantly state "This nonsense was disproven long ago. Deleting/renaming those apk files does nothing." It sure did "something" for me :)

____________________________

Derek
[Nook Color Android Development] RoboRay:
Yes, it did... It made a cosmetic change of shifting that battery percentage reported as "Cell Standby" to either "Phone Idle" or one of the other Android items on the battery-use report. I forget which one. If you read the thread on that topic you can learn all about it.
[Nook Color Android Development] lyam23:
OK market and google talk issues have been resolved on my Nook Color, but now I'm not seeing my device on the market site. I know it sometimes takes some time for a device to show up after flashing a rom, but it's been almost 24 hours now. Anyone have any ideas on how to force a device to show up in the market?

Everything else seems to be working just fine.

Thanks!
[Nook Color Android Development] GrillMouster:
You likely have a bad charger cable. Many android phones experience the same "phantom touches" problem when used with cheap third-party chargers. Unfortunately, B&N had a big batch of crappy chargers that shipped with NCs. I contacted B&N customer support and got a replacement that solved the problem. No more buggy performance while charging.
[Nook Color Android Development] oldman_58:
This has been an interesting topic of discussion, but it has over shadowed the point of this thread, please start a new thread for this topic.
[Nook Color Android Development] queseyo:
Here is a tear down where they show how to take the battery off the device.

http://www.techrepublic.com/photos/...20&tag=thumbnail-view-selector;get-photo-roto

Summarizing, the process would be:

1) Take two outer screws

2) Remove soft back plate with flat utensil.

3) (Remove internal metal frame)It is held to the display assembly with 10 Torx T5 screws.

4) With thin metal blade Remove three rubber cushions that cover connectors for the battery, power button, and volume up/down button.

5) Disconnect battery, and volume buttons, power buttons.

6) Separate display assembly by hand.

7) Remove battery

Many things could go wrong when putting it back together. I would do it if the battery dies, but I would't look forward to it as if it was a piece of cake and be ok with my battery draining much faster.

I will stick with autonooter until battery performance is optimized.
[Nook Color Android Development] Chahk:
Why are you guys still bickering about battery life, when dalingrin said many times (at least in 2 separate threads) that he's already working on fixing the SOD issue?
[Nook Color Android Development] Foetus:
Mostly, I use it because of the widget. It allows me to see when updates are available and if so, how many.
[Nook Color Android Development] Foetus:
When it comes down to it, (I'm sure someone will correct me if I'm wrong) rechargeable batteries can go through 400-1200 charging cycles. Even if you charged your Nook each and every day for a year, you'd still have another month to 3 YEARS left... And that's only if the issue never gets fixed! I don't know about you guys... But by the time the battery goes on a device I own, it's typically been replaced already. Try to keep some perspective. Use it or don't, but it's a slap in the face to the devs when you announce in a public forum that you're not going to use it. CM7 is an amazing gift to the community. I'm sure when everyone mentions why they're NOT using it, they have good intentions, but try to consider the feelings of the purple that made it for you. For free.
[Nook Color Android Development] ADude:
Someone else's point is that there is already a very long thread on the topic.
[Nook Color Android Development] Chahk:
Just wanted to bring to attention another couple of points that everyone seems to be forgetting or ignoring, or are simply unaware of.

First of all, the term "charging cycle" refers to a battery going into a deep discharge mode, and then getting charged back up to full capacity. I bet that few tablet users let the power dip that low very often. My Nook Color gets average usage, and it's got ~25%-30% juice left at the end of the day. Of course, if you watch movies all day you're gonna burn through the battery a lot sooner. However, in those cases such usage will not let the tablet "sleep" at all, therefore the SOD fix will not help.

Second point is that even after the 400 charging cycles, the Lithium Ion batteries don't just suddenly die on the spot - they simply start losing capacity over time. I.e. the "100%" mark is no longer the full rated capacity (4000 mAh in the case of our NCs.) They will still last a few more years until they lose enough capacity to be of any concern to the majority of users. Well guess what, these batteries lose capacity even if they are not being used at all! It's a well known drawback of Li-Ion technology that storing batteries for prolonged periods of time is bad.

Bottom line is that your Nook Color will have long outlived its usefulness when its battery is truly damaged from charging too often.
[Nook Color Android Development] lyam23:
Agreed. I've had my Droid 1 for over a year and I charge it every night. I seriously doubt that a daily/nightly charging of the NC is going to render it inoperable prior to replacing it with a new tablet. Probably at a lower price point than for what the NC was bought.
[Nook Color Android Development] dsf3g:
Maybe, maybe not. I'm still using a 7 year old iPod... but then, I also changed the battery myself.

My bottom line, though is this: if you're brainy and adventurous enough to be rooting and flashing ROMs to your Nook Color, you're also brainy and adventurous enough to change the battery. From the teardown pics it looks like a 30 minute procedure for a guy who's doing it for the first time.
[Nook Color Android Development] Chahk:
Fair enough.

Now let's all please stop beating this dead horse, and get back to bickering about how flashing ROMs too often will wear out the NC's internal memory in 2 weeks! :p
[Nook Color Android Development] chisleu:
I actually had a EeePC who's internal memory died in a little over a year of normal use.

Using up the lifecycles of an integrated flash memory with 1 gig videos (1-2 deleted+downloaded a day) is not a good idea.
[Nook Color Android Development] queseyo:
Ok ok, you guys make good points. I apologize if I hurt anyones feelings. I will be more conscious in the future.
[Nook Color Android Development] ADude:
Actually the Nook Color battery will have longer life from being partially charged more often. Deep discharge is worse for Li-ion than frequent charging.

See:

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
[Nook Color Android Development] Chahk:
Very true, and is kind of what I meant. I should've said "dis-charging too often."
[Nook Color Android Development] lyam23:
I'm afraid my question got drowned out in the recent battery discussion...

Has anyone had any issues with their device not showing up in the android market website (even as much as 24 hours later)? And if so, how was it fixed? Prior to CM7 w/ MM tab tweaks, I had no problem finding my device on the market...

Everything else seems to work great.
[Nook Color Android Development] Nburnes:
Mine still shows up, and I am even running the tablet tweak one.
[Nook Color Android Development] swaaye:
This depends on the type of flash memory in use. SLC has millions of write cycles whereas MLC has tens of thousands. The EeePC 900 for example has a 4GB SLC SSD and a 16GB MLC SSD. My 900 is almost 3 years old now and gets use almost every day and has been an OS experimentation device. But I barely use the much less resilient 16GB drive.

I don't know what's inside of the Nook Color but it would probably be easy enough to figure out from the disassembly photos.
[Nook Color Android Development] Snyperx:
Ok so I am running CM7 build 35. I charged my NC last night before going to bed. I woke up, unplugged it, and powered it off before placing it in my backpack. I get to work. After lunch I take my NC out and power it on for the first time after charging. Battery is at 90% already. Ideas???
[Nook Color Android Development] Canadoc:
Actually 1200 charge cycles is for something like a latest gen macbook pro. It is more like 300 charges until battery useable life drops by 20-30%
[Nook Color Android Development] Canadoc:
The term is charging cycles. So even if you recharge every night, if you only recharge from 60% to full that counts as only 40% of charge cycle. And anyone who thinks there is not a noticeable decrease in functional battery life after 2-300 charge cycles is clearly mistaken.

Lastly I don't recall anyone ever saying they wouldn't use CM7 on this account or that they didn't praise the devs for their tremendous work. But it would be lying to say this is a non issue and at least to me it is a more important issue than some of the other things that are or have been fixed.

I have repeatedly asked if the upcoming B&N update being 2.2 based might hold the answer btu have not heard a reply to that question yet.
[Nook Color Android Development] woot1524:
Dalingrin has already said multiple times that he has fixed the sleep/SOD issue in the new kernel. He has also said that we can either expect the new kernel in the first stable release or shortly after the first stable release.
[Nook Color Android Development] dalingrin:
Pretty safe bet it'll be after the first stable release.
[Nook Color Android Development] timekeeper:
Mine never showed up, ever.
[Nook Color Android Development] oldman_58:
I am on my soap box this DAMN battery discussion has hijacked this thread, please start you own thread where you can compare. bicker and complain...

For most of us this is non-issue since the fix is forthcoming.. and if I charge my device 100 times a day that means I am using it, I purchased it to use not be worried about an nightly charge or a weekly charge or OMG the battery will wear out, let the damn thing wear out I will use my #5 TORX and replace it.... But you will void the warranty, guess what you changed the ROM you already voided the warranty.

Make you own thread I want to be able to read posts that may enhance my NC experience or provide some guidance for some user that really needs help I don't want to wade through all of this fertilizer too find what I am looking for.

So please stop using this tread for such minutia.

Thanks

A very grumpy OldMan.
[Nook Color Android Development] Divine_Madcat:
I did some research, and it looks like the "SSD" in our nooks is the cheaper MLC; product brochure: http://www.sandisk.com/media/117386/nand_brochure.pdf . I based this assessment on the part number on the chip: SDIN4C1-8G , which seems to be part of the iNAND product family.
[Nook Color Android Development] woot1524:
Hey Dalingrin, I was hoping to get your advice on my BT problem. I say mine because I have yet to see a post saying this is happening to someone everytime the nook is booted. Every single time I go from off-state to on, BT will not turn on. I'm forced to reboot into CWM and fix permisions there; doing it through rom-manager and rebooting does not work. Another weird thing is that if I go from off-state to on with pwr+menu, fix permisions first in CWM then reboot, BT does not work. It's like it needs to fail first before it can be fixed.

I've tried the last three iterations of your OC kernel

The last two versions of CM7 tablet tweeks

Nightly 34/35 and RC4

Dalvik-cache, /cache wiped for each try

BT acts the same on all of them.

I'm almost to the point of doing a total /data wipe, and starting fresh. Which, to be honest, I'd rather not do.

I saw in an earlier post you said you didn't like the way BT was being enabled in the kernel. If you don't mind helping me make up my mind, are you planning on doing anything with BT? Because if so, I can wait this out for a possible fix. If not, then I guess my only option is to start fresh. I am not asking for a timeline, just an up or down vote on messing with the deeper elements of BT.

I was going to PM you, but I figured that there must be other's in the same boat as I, or at least in simular situations.

I'm working on getting you a logcat of what exactly is going on, I'll just edit this post.

Thanks ahead of time.
[Nook Color Android Development] dalingrin:
Do me a favor and try this kernel.

EDIT: taken down
[Nook Color Android Development] rohit275:
Ohh nice, I'm gonna go ahead and give this a shot as well. You are awesome, dalingrin.
[Nook Color Android Development] woot1524:
I'm locking up at the "android_" splash screen. I wiped Dalvik-cache and /cache, and rebooted a couple times.

Edit: I'm currently on tablet tweek bug-fix-1

Edit 2: Flashed the 04/04/2011 kernel back on, and booted up just fine.

You have an MD5 for that new kernel... just to be sure it's not because of a download error.
[Nook Color Android Development] luciferii:
That kernel threw me into a bootloop twice.. luckily just flashing the previous kernel over it fixes the bootloop, phew!

Sent via Cyanogenmod7 Encore RC4 n.35/Tapatalk Pro
[Nook Color Android Development] ADude:
Normally, I also get exasperated about threads being hijacked by an off-topic discussion.

However, this is the General Discussion thread for Users, so the whole point of the thread is not have people starting threads in the Development Forum about user issues.

So - in this case only - please do not start a new thread about this topic, and continue the discussion here if you have something new to say about the issue.
[Nook Color Android Development] nrune:
Does cm7 need it's own sub forum?

Mike
[Nook Color Android Development] chisleu:
Thought about that myself this week.
[Nook Color Android Development] Paul22000:
If there's a mod watching, that would be awesome.

New forums for Android 2.1 (Stock), 2.2, 2.3, 3.0.
[Nook Color Android Development] dalingrin:
Sorry about that...here is another attempt #2

md5: 385234a8e7f7da3212171d37eab1d95e
[Nook Color Android Development] oldman_58:
@dalingrin

Where can I make the change so WiFi is enabled on boot up, something changes a couple nightlys ago not sure what...

Is there a file I need change in etc or somewhere else?
[Nook Color Android Development] woot1524:
Booted up this time. I only wiped dalvik-cache

On first boot BT does not start up. Fixed permissions via rom-manager and rebooted. BT now turns on, and stays on. So I guess that's an improvement. I'm going to try various resets and see if this persists. I'll just edit this post.

EDIT 1: I rebooted via the pwr button menu with BT still activated, which was known for breaking BT, and after the reboot BT started up just fine. I'll try a couple other methods for breaking BT. Though this is a big breakthrough for me. First time BT has persisted through a reboot.

EDIT 2: I just can't kill BT. Great work Dalingrin. I can't thank you enough. I'm even typeing this with my new BT keyboard, which I really was unable to use before. BT range is good as well, the keyboard is working from over ten feet away.