yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] gmarkall:
The difference in size could be caused if the old build server was hosting cyanogen_A1_07-ota-eng.zip and the new one is hosting update-cm-7.2.0-RC0-A1_07-KANG-signed.zip

These files are similar, but I think one has DexOpt run on the APKs inside it and then it's re-zipped. Someone who actually knows what they're talking about might be able to explain what this means :)
[Miscellaneous Android Development] bjanice44:
Thanks. I should have just looked in the zip file before I asked :-)
[Miscellaneous Android Development] BARMANIA:
Yes, reset to factory default. Tried repartitioning with CMW, but still won't mount.

I'll give it a go, it's the internal 16Gb card. Strange thing is that I am still able to flash from the external card, I've flashed it to the ICS port at the moment, but I'll flash it back to C7 to change the storage setting (ICS won't see any storage).
[Miscellaneous Android Development] MadPriest:
What is the difference between

update-cm7-A1_07-20120509.zip and update-cm7-leo-20120509.zip ?
[Miscellaneous Android Development] gmarkall:
leo is for the HTC HD2.
[Miscellaneous Android Development] gmarkall:
More wifi attempts

I've tried changing building the kernel without the CONFIG_LENOVO_BCM4329 option set. The effect of this is to not force removal of SD cards on mmc2, which the BCM4329 is connected to. This means that the wifi no longer goes off when the screen is off.

I don't know whether to expect it to improve stabilty for those devices that have a lot of wifi reboots - could you please try the next nightly (20120510) and report on stability, and battery life please?

I look forward to your feedback - many thanks in advance!
[Miscellaneous Android Development] dusko_m:
just to share my experience. haven't been flashing any nightly lately (just now getting ready to flash). I am still on build from 22.04. here is my uptime (12 days and counting). Didn't had any noticeable problems with WiFi... sometimes it happens that push updates (twitter, gmail...) stops after prolonged period of standby. My WiFi sleep policy is set to Never. I think that last time I restarted was when I flashed new bootloader and kernel (OC to 1.2GHz)

don't think that I am not using it (4 days battery life)...it has been forgotten in my parents house for 2 days. usually I have to charge it almost every day.
[Miscellaneous Android Development] gmarkall:
After some testing and input from Bewahn, it looks as if this kernel correctly honours the wifi sleep policy. Please give this a try if it is of interest to you. Note that even when it is set to turn off wifi when the screen is off, the behaviour is to leave it on for about 15 minutes after the screen turns off. After 15 mins, the wifi goes off and stays off until the screen is woken.
[Miscellaneous Android Development] MadPriest:
and it'll be in the latest nightly today?

I can't wait to grab it

BTW, can you update the OP to have the link do the current download page?
[Miscellaneous Android Development] gmarkall:
Updated the OP now. Thanks for pointing that out - I forgot about that link!

If you can't wait to try it, then just download the repo as a zip from https://github.com/gmarkall/android_device_ideapad_a1/downloads then flash the kernel from it using fastboot.
[Miscellaneous Android Development] Bewahn:
You can save some bandwidth by downloading only the kernel :)

https://github.com/gmarkall/android_device_ideapad_a1/blob/gingerbread/kernel?raw=true
[Miscellaneous Android Development] BARMANIA:
OK, so I've flashed to the newest C7, but my internal 16gb card still can´t be mounted and therefore can´t be formatted. It won´t show up when I go into storage in settings. It also won´t mount in CWM, partitioning in CMW doens't fix it. Is there another way to mount and format the internal 16GB?

Edit: I fixed it, repartitioned with ADB: http://androidandme.com/2009/08/news/how-to-manually-partition-your-sd-card-for-android-apps2sd/
[Miscellaneous Android Development] mikelets456:
Do I install this the same way I installed the previous CM7 nightlies? What about the kernal?
[Miscellaneous Android Development] MadPriest:
Yes, same way

---------- Post added at 11:39 PM ---------- Previous post was at 11:13 PM ----------

updated to the 0510 (regular update.zip - I had no network to download the update before)

This was the first build that "survived" on my device more than 3 youtube videos :)

it crashed on 8th (I think I'll try to exchange it since it's still under warranty)

here's the log

https://www.dropbox.com/s/k7r4wkcnom04i1o/last_kmsg.txt
[Miscellaneous Android Development] jw_s:
1.You can flash this rom ,the edition of A107W0_A234_001_000_2035_SC,(I can't find the English edition).

2.flash cm7 rom

download address:

h t t p ://112.91.94.30/gdown_group266/M00/16/26/tzydNU-rTssAAAAACjKZ80rFaqc0077616/lenoveRom.rar?k=NlYgw-0ghpuQUgNflUhn1Q&t=1336630106&u=120.204.252.54-2121397-annhg7df&file=lenoveRom.rar&s=102400

Sorry for my poor English !
[Miscellaneous Android Development] antonfelix:
Lenovo A1 not recognized as tablet

I am not able to install any tablet apps from Android market. Android market still recognizes this as a phone and any fix for this >?
[Miscellaneous Android Development] jpo234:
This is still Android 2.3.7. If by "tablet apps" you mean apps that require either Honeycomb or ICS, then no, they won't work on CM7.

There is some hope that CM9 which is based on ICS will eventually come to the A1.
[Miscellaneous Android Development] MadPriest:
0510 build, no standby reboot

Which is good

:)
[Miscellaneous Android Development] yohannrjm:
Hey guys, I need help in recovering my Ideapad A1 to a usable state. I did do a search here, but it seems that this hasn't been asked before.

Basically, I installed CM7 (from the nightly) successfully, but when it boots up, the touchscreen doesn't work.

I assumed that it was a kernel issue, so I tried a couple of other nightlies, but they didn't help - same issue.

So, I tried to go back to my backup (made through CWM) - it must have been corrupted, as it won't install.

-------

Do you think my diagnosis is correct? If so, where can I get my hands on a kernel to flash.

I can access CWM easily, and I can load files on the external sd-card, so as long as I can get my hands on either -

A) A working kernel or,

B) A stock CWM backup zip

I should be fine.

------------

I'm used to rooting/flashing other androis devices, but this is a first for me on the A1.

Thanks for your help.
[Miscellaneous Android Development] gmarkall:
Probably the simplest thing to do is to wipe data in CWM then flash an OTA from http://download.lenovo.com/slates/a1/OTA/ - after that, you're totally back to stock with everything. You can then reinstall Clockworkmod recovery and restore another backup, or reinstall CM7.
[Miscellaneous Android Development] yohannrjm:
Thanks, that's what I was looking for. I appreciate it. :)

-----------------

UPDATE: That worked! I'm back to stock. However, the touchscreen is still not working. Something else is kaput! :(

It worked fine before the CM7 attempt, though WiFi kept dropping.

Sounds like a call to the Lenovo Customer Support is in my future. :D
[Miscellaneous Android Development] imritechere:
excellent job on the 5/10 nightly / wifi is nice (not that I've had problems) but love the way it stays on also seems to a smoother faster feel to the rom .

Thanks for your work
[Miscellaneous Android Development] gmarkall:
Have you tried touch calibration?
[Miscellaneous Android Development] yohannrjm:
Yep, did that a couple of times.....no effect. Turned on/off a few times....no effect, and also did a factory reset/cache wipe.....same.

Touchscreen seems to have died.
[Miscellaneous Android Development] gmarkall:
There's one other possiblity for repair - there's a bootable SD card image that contains a touch screen firmware flash and more in-depth calibration utility floating around somewhere, probably on some Chinese Ideapad boards. Unfortunately I can't recall the filename and I don't have a copy of it, so some searching would be necessary.

Alternatively, this does sound like a warranty repair, so it may be easier to get in touch with Lenovo.
[Miscellaneous Android Development] yohannrjm:
Well, I called Lenovo and I'm returning the tablet. It's a pity, really. Now I have to wait some more.
[Miscellaneous Android Development] bejay:
Reboots in standby on 1005 build

Updated to the 1005 build this morning and had quite a few reboots while in standby today, never had it happen before. At one point I had to force a shutdown because it was in a bootloop.

last_kmsg

I also noticed that the A1 constantly whistles a repeated pattern through the speaker when in standby if the wifi is enabled ie. wifi sleep policy set to never or when screen turns off. don't know if it means anything but the pattern is ~1sec whistle followed by ~1/2 second pause and repeated

I timed one of the reboots this moring and it coincided with the wifi shutting down 15 min into standby.

I've reverted to the 0605 build for now.
[Miscellaneous Android Development] gmarkall:
Thanks for the feedback. If you have the chance, would you be able to try the 0510 build again and let me know if you also cause a reboot by turning the wifi on and off a few times?
[Miscellaneous Android Development] monsefito:
How you did that? I'm in the same situation and no luck with this. It still's can't mount emmc. I got a message telling me that i must update /etc/fstab but I don't know in wich way...
[Miscellaneous Android Development] passy:
wifi static ip

On the latest rom 1005 cannot connect to my wifi when set static ip. If I choose automatic works great.

I had problem to upgrade cm to 1005 (old was 0505). After upgrade I had black screen - only wipe data helped and lost all my data (but fortunatelly I had backup :-)
[Miscellaneous Android Development] gmarkall:
I take it that it was previously working with a static IP?
[Miscellaneous Android Development] passy:
Yes. My last used was build 0505 and didn`t try late.
[Miscellaneous Android Development] bejay:
Ok, I've reflashed 0510, turned wifi on and off ~20 times, no reboot so far.

Any idea about the whistle? It's much worse using this kernel, so much so that I'll have to switch the wifi off before I put the tablet to sleep if I'm going to carry on testing with it.

Edit: I also ment to mention, the more recent builds seem to take a long time to boot the first time after flashing them. I'm not sure when this started but the 0506 build does it.
[Miscellaneous Android Development] jpisini:
If you wipe caches first boot takes a bit longer as it has to reload that information.

I wish I had time to test been swamped at work and home. I'll try to get some time this weekend.

On a good note tomorrow is my birthday and my wife got me a new case (I had been using one from another tablet and I had to use rubber bands to hold the tablet in) and a glare filter. I will let you know if they work or not.
[Miscellaneous Android Development] MadPriest:
Happy BD.

It's mine too :D
[Miscellaneous Android Development] jpisini:
Cool happy birthday right back at ya.
[Miscellaneous Android Development] MadPriest:
BTW

my uptime is 24 hours with 0510 build

This never happened before
[Miscellaneous Android Development] gmarkall:
Great! Could you try and keep it running for as long as possible please? Also, whaat is your wifi sleep policy set to?
[Miscellaneous Android Development] gmarkall:
Thanks- could I trouble you for one more experiment please? What happens with the 0510 build if you set the wifi sleep policy to never? Does this stop the restarts in standby mode?
[Miscellaneous Android Development] Temaki:
My device does not boot with 0511. The Lenovo logo keeps reapearing every few seconds but it doesn't go any further.

I'll go back to 0510.
[Miscellaneous Android Development] gmarkall:
I wonder if something went wrong with flashing - is anyone else experiencing this with 0511?
[Miscellaneous Android Development] ssjfjs:
I installed yesterday the 1005 build. So far everything works great. Thank you very much for the nice work. So far the only thing is that skype video shows inverted videos and are not presenting the entiry video signal. But there were already issues on the stock rom before. Wifi works fine on my device.

cheers
[Miscellaneous Android Development] imritechere:
5-11 build

Excellent snappy at 1000mhz compared to 05/09 / no wi fi issues 5/10 Rom seemed to draw the battery more than normal
[Miscellaneous Android Development] gmarkall:
Did you have wifi issues on 05/09 and now don't on 05/10, or did you never have wifi issues?
[Miscellaneous Android Development] mikelets456:
Very snappy indeed. I have setcpu at 1200 Mhz and this tablet is "fluid". Btw, I notice battery life is a lot worse. I used to be at 75% by the 12th hour, now i am at 50% under 0511 build.

EDIT: I forgot to mention yesterday I was holding my ideapad and I felt it "buzz". When I went to use it, I hit the power button and there was nothing but a blank screen. I had to hold down the power button for 10 seconds to get it to boot up. Have not had this happen since the OEM build.
[Miscellaneous Android Development] bejay:
Not had any restarts but it's seems it never actually goes to sleep now, better battery stats says it's been awake constantly, wifi on constantly for almost 4 hours (since I unplugged the charger).

I'm going to have to revert back to an earlier build 'cos the whistle is driving me nuts! It's not loud, but it's just at the right frequency to be faintly audiable. That combined with the regulartiy of the pattern is starting to get to me.
[Miscellaneous Android Development] Temaki:
Redownloaded the file again and now it works.

Happy again!
[Miscellaneous Android Development] gmarkall:
Thanks for doing this experiment. I guess there might be some other code path that gets followed when the wifi is turned off after 15 minutes that I hadn't looked into before. I'll look into this and see if I can figure out what the cause of the reboots for you was.
[Miscellaneous Android Development] gmarkall:
Thanks for the feedback. What do you have the wifi sleep policy set to? If it's set to never, does it improve the battery life to change it to "when screen turns off"? Also, is it stable if you do that?
[Miscellaneous Android Development] purloiner:
That sounds like my issue, some kind of i2c badness, you might want to post up your last_kmesg for someone with more brains that me to look at. :D

BTW, I'm on 10/5 build, so far it's good, wireless is much more likely to come on, even if it doesn't always associate with the AP first time, the last few resets for me have been i2c related.

This is with the wifi sleep policy set to never which is how I'm running all my droids :cool:
[Miscellaneous Android Development] sweetlisheng:
Thanks for all your efforts.
[Miscellaneous Android Development] TippyTurtle:
Lower your maximum mhz to 1000 and see if thing's are stable...and battery is more inline with before.

Don't forget OC'ing often pushes the limits of things.
[Miscellaneous Android Development] mikelets456:
I have it set to "turn off when screen turns off". It does indeed turn off and comes back on quickly.

I'll try changing to "never" and see what happens. All builds have been very stable with the exception of the 0509 build would reboot and get a "start up" force close...
[Miscellaneous Android Development] imritechere:
I'm on 5/11 1000mhz runs fine / wifi sleep when screen off batery is 77% opposed to yesterday 54% at this time with wifi set to never
[Miscellaneous Android Development] jpisini:
I installed 05/11 version it is too soon to tell if it is stable or not or what the battery usage is. It boots up fine. I had a question though. I thought from reading what others have posted this defaults to 1200mhz but under settings > cyanogenmod settings > performance I see 1000mhz. Does that mean it doesn't support a higher frequency or am I looking in the wrong spot?

---

edit

I have noticed the machine waking up on its own. I switched the wifi policy to never which I have never had to do before and will see if it continues.
[Miscellaneous Android Development] gmarkall:
The kernel support 1200MHz but an init script caps it at 1000MHz by default. See /etc/init.d/10overclock to see how to adjust the maximum frequency.
[Miscellaneous Android Development] MadPriest:
My current uptime is 46 hours (!)

It should he default - I couldn't find any settings for changing it
[Miscellaneous Android Development] Bewahn:
A theory on that problem:

It seems like the noise is always hearable when the speaker is enabled. That might be caused by cheap hardware... When you play something it deactivates the speaker after that, so there's no noise anymore. This is why lock screen sounds and pressing the volume buttons help temporarily. If DSPManager is running it reactivates the speaker without a reason from time to time. I don't know why but at the moment this is the only plausible explaination to me.

I removed DSPManager completely by removing the .apk from /system/apps and after a reboot the noise issue is completely gone.

Maybe we should think of removing DSPManager from this ROM or is that too drastic?

edit:

Just had to learn that removing DSPManager completely is not the ultimate solution. Other factors can cause the noise to start without reason, too.
[Miscellaneous Android Development] jpisini:
I just don't enable DSP manager and that is good enough to fix my sound issues. I didn't realize I could uninstall it. I will try that.

On a separate note I installed 05/12 and lost status bar. I went into tablet tweaks turned on and then off bottom bar and that turned it back on. Just in case anyone else runs into it.
[Miscellaneous Android Development] MadPriest:
64 hours and running!

Was left in standby for about 13 hours, with battery level of 59%

Switched on now (from standby) with 54% left
[Miscellaneous Android Development] MadPriest:
90+ hours

No reboots in standby

Working very smooth without tweaking anything
[Miscellaneous Android Development] jpisini:
How is your battery life?
[Miscellaneous Android Development] Temaki:
Up untill yesterdays build I had regular sudden reboots after playing a try birds for 5 to 10 minutes. On rare occations also with some other apps.

Sometimes also when device was on standby, or sleeping mode during the night.

Usually when I install the newest nightly I clear the cache partition and the dalvic cache. Plus sometimes do a fix permissions.

Anything else I could do?
[Miscellaneous Android Development] jpisini:
I don't play angry birds often but I have used if on the 5/12 release for more than 15 minutes no reboots here. Try clearing the caches twice before flashing.
[Miscellaneous Android Development] Temaki:
Thanks, I will try this tomorrow.;)
[Miscellaneous Android Development] milaq:
lol

furthermore when clearing the cache 1337 times before and after flashing, additional 512mb of ram are getting unlocked.

sry couldnt resist
[Miscellaneous Android Development] gmarkall:
Could you provide the contents of /proc/last_kmsg after one of your reboots please?
[Miscellaneous Android Development] MadPriest:
I left home this morning (4 hours ago) with 98%

Now it's 83%, 107,5 hours uptime

Network is enabled, I do receive Facebook/Google talk/ instagram/etc... notifications while in standby

I would say for device with "up to 7h battery life " line is pretty average
[Miscellaneous Android Development] jpisini:
So my work put in a guest wireless network. If you have ever been to a hospital you know how they work on first launch the browser is redirected you have to accept then you can surf. On my Android phone an EVO running Android a version of Deck's Rom which is CM7 based I can do this no problem. On the tablet I don't see the check box so I can connect but never leave the landing page, anyone have any ideas?

On the 5/12 release
[Miscellaneous Android Development] nefilim23:
Does it have usb host option? I can not mount usb stick when i plug it. Any ideas?
[Miscellaneous Android Development] bejay:
I've not reverted to 0506 yet, and have been running with the wifi policy set to when screen turns off with no forced reboots. I'm manually switching the wifi off when I'm not using the A1 for a while but letting the wifi policy manage it the rest of the time (and putting it in a drawer/bag to hide the noise).

Perhaps it wasn't the wifi that caused the reboot last time? Did the last_kmsg I posted give any clues?

No, not yet.
[Miscellaneous Android Development] gmarkall:
Apologies - I lost track of things and forgot about your previously-posted last_kmsg. I just had a read through it, and it doesn't appear to have got round to loading the wifi driver before it restarted, so it seems plausible that it could have been something else causing the problem.

Sorry about the noise - does the noise stop when you're plugged into the charger? I find that about 30 seconds after plugging in the charger, the noise stops, and then shortly after unplugging, it starts up again. I'm hoping that this will help to isolate the root cause of the noise.
[Miscellaneous Android Development] gmarkall:
Just to check I'm understanding correctly - your A1 was fine, and it's only since this recent nightly that it's begun rebooting? If this is the case, could you try installing the latest nightly, then doing a wipe data/factory reset, then see if the problem persists when starting afresh?

If you still have the problem after wiping data, could you post a last_kmsg after a reboot, and the logcat leading up to a reboot as well please?
[Miscellaneous Android Development] passy:
I don't know why but in my a1 this noise stops in 3 seconds after press vol up/down.

This problem doesn't exist while charging battery, only till 3 secs playing any sound later is totally quiet

I didn't check on headphones.

Ps. Sorry for my bad english

EDIT

I forgot to write ver. 0305 but I didn't hear weird noises in previous versions.
[Miscellaneous Android Development] Temaki:
I will try to do this tomorrow with the newest nightly.

Thanks for the advice.
[Miscellaneous Android Development] bejay:
No need for apologies Graham. You guys have transformed the A1 into a fantastic bit of kit.

I hadn't noticed as I tend to charge overnight but yes the noise stops when it's plugged in.
[Miscellaneous Android Development] passy:
Maybe this noise is cased by applications?

Try to kill all running programs and check again.

I'm watching movie on maxvideo now and even if video is buffering noises are hearable.
[Miscellaneous Android Development] Temaki:
Yes, it started recently. I did what you suggested and wiped all data and flashed the new nightly this morning. After that I did a restore and now it works fine so far.

But there is not enough time to thoroughly check every thing. I will report again if I find some unexpected behavior.

Thanks for your help.
[Miscellaneous Android Development] imritechere:
reboots on latest nightlies

I've experienced a strange sort of reboot with the nightlies since the 05/12. In the mornings after charging all night, heading to the car I felt my bag buzz like the A1 shutting down attempting to turn back on goes to lenovo and then black. No attempt at a boot. Go to recovery and reboot system and all is well til the next AM. Just loaded 05/15 Nightlie
[Miscellaneous Android Development] 044003:
will there be kernel's daily update in new nightly website:confused:
[Miscellaneous Android Development] gmarkall:
There isn't one at the moment. The Cyanogenmod nightlies include a kernel, but it uses a prebuilt kernel that we update manually.
[Miscellaneous Android Development] ssjfjs:
wifi and noise

I installed recently the 1005 nightly on my a1. so far everything works fine as long as i switch off the wifi manually. If I set it to sleep when screen turns off the device get stuck and I have to force it to reboot. If I set it to never turn off I have also some annoying feeping sound. But this also happened in my case on the stock rom only when the wifi is running. So in my case I only have this feeping sound when wifi is on and room is silent. If it there is some background noise in the room than I am not able to hear it.