yashsingh1/xdaforums huggingface dataset:
[Asus  Eee Pad Transformer Prime] mardukeme:
I posted this in another thread but will post it here as well hopefully it helps.

I was having the same problem as well. Not sure if this the fix bit it seemed to go away. Go to settings -- Developers Options, and check off. "Force GPU Rendering". After doing this my screen banding seemed to go away.
[Asus  Eee Pad Transformer Prime] newims2000:
After update to ICS, I am getting the screen issue like described here. HC was perfect until ICS. I tried your suggestion of Force GPU Rendering and reboot, still see problem once in a while.

Does anyone know if I reset the tablet with reset button, will it wipe out everything I installed?

TIA
[Asus  Eee Pad Transformer Prime] darkangeldc5:
Tried the wipe option already (both factory reset within the tablet and using vol down +power), the problem stays

and yes it will wipe out everything excluding your removable SD
[Asus  Eee Pad Transformer Prime] colbyb25:
I wouldn't worry. Not everyone that wants the Prime reads XDA. More like just a very vocal minority. If I had no issues selling a pair of Xooms on Craigslist, you will no issue selling a prime.
[Asus  Eee Pad Transformer Prime] rootusr:
I was able to reproduce a quick flickering in the screen everytime that I tap the recent apps button, other than that I have not found other issues. Can some one else try this?
[Asus  Eee Pad Transformer Prime] colbyb25:
I do not recommend using Force GPU rending as it can cause a lot of instability in applications that do not support it yet.
[Asus  Eee Pad Transformer Prime] Element_01303:
Man this is getting really frustrating... With the display like this it really makes my tablet no fun to play with :(
[Asus  Eee Pad Transformer Prime] rootusr:
OK I just noticed that the flickering ocurres only when pressing the recent apps button while you are in the desktop, if you are in some other apps seems to be working fine.
[Asus  Eee Pad Transformer Prime] newims2000:
My bad. Anyway the default setting was no Force GPU Rendering checked, so it doesn't help with or without that option. Screen flickering still exist. ASUS just totally sucks with this tablet. This makes me want to go out and buy iPAD2 now.

Totally frustrated with this Tablet. Wifi, GPS, and now ICS screen flickering. spend $500 to get myself stressed out on this F%&$ tablet
[Asus  Eee Pad Transformer Prime] tdrussell:
i can reproduce this, however it is not the parallel banding i've been seeing since ICS.
[Asus  Eee Pad Transformer Prime] acafaca333:
I'm experiencing the same screen flickering. I did not have any issues prior to the ICS upgrade. I hope this gets rectified quickly....
[Asus  Eee Pad Transformer Prime] rootusr:
I cannot reproduce that parallel branding, can you share the steps you follow to do so? (if any)

regards,.
[Asus  Eee Pad Transformer Prime] TheArtfulPenguin:
The only issue with flickering I have wasn't doing it in HC and in DroidTV if I pause the video I get a horizontal flicker. See if the video I took will post. Well it wouldn't post the video, but I put it in a zip and attached it.
[Asus  Eee Pad Transformer Prime] Hockey37:
After the update, I'm experiencing the parallel banding as well. Doesn't seem to be a way to reproduce, just happens when it wants to. Never had this happen before the update. No other problems, pre or post update.
[Asus  Eee Pad Transformer Prime] darkangeldc5:
People from transformerforum suggest it is more common when SD card is mount. Now I have unmounted it and see if that is the case.
[Asus  Eee Pad Transformer Prime] original G:
Damn! Banding came back when I used it for a bit. Annoying most of the time, unusable at others. I hope a solution comes soon...
[Asus  Eee Pad Transformer Prime] indiscriminant:
I have had no other issues with my transformer, wifi/bt all good, ICS performance good.

I do get this banding though, so far nothing has seemed to fix it and when it happens a lot my tablet resets itself as well.
[Asus  Eee Pad Transformer Prime] rootusr:
On flickering when pressing the recent apps button in desktop only happens while screenshot feature is enabled . Try to disable it and test
[Asus  Eee Pad Transformer Prime] JutGra:
Happening to me constantly, close to un usable. Have rebooted a ton, no root done at all, even went as far as uninstalling apps that werent stock. Sometimes only happens on portions of the screen when drawing new graphics. Attached some screenshots.
[Asus  Eee Pad Transformer Prime] tdrussell:
Yep that's exactly what I get, though it sounds like not quite as often.
[Asus  Eee Pad Transformer Prime] Caanon:
Exact same thing on mine. I had just opened and unboxed my TF not 30 mins before the ICS update. I thought i had gotten a defective unit. Makes me feel a bit better. How long have you had yours ?
[Asus  Eee Pad Transformer Prime] darkangeldc5:
Guys, may have found the workaround.

This is what I did:

Go to developer options -> Transition animation scale and set to off

and I haven't seen the problem even since. After I reset it back to 1x, the problem comes back after lefting the screen idle for a while.
[Asus  Eee Pad Transformer Prime] Haranzo:
same problem here!!

so upset... I thought Asus is about quality...

well at least i was excited for 2 seconds before the horizontal band come flying in!

Turn off the transition e

ffect completely, and seems better
[Asus  Eee Pad Transformer Prime] newims2000:
me too... so pissed off right now. My screen was working fine with HC. Only after updating ICS and I got this screen flickering problem. Hope they release software fixes soon.
[Asus  Eee Pad Transformer Prime] JutGra:
Nice, dont know how I missed this, I always look for windowanimations to turnoff. Usingabout 20mins now, issue seems gone.

I got minefrom bestbuy, ordered first day of presale, received on Dec23rd?(maybe 24th). I have good serial#.

EDIT : Damn, yea still happening. Although way,way less. No rhyme or reason to it.

On an up note tablet is on about 6 hours of heavy usage. Web browsing, tdownloading and testing HD games, youtube, forum and app hopping, woman playing angrybirds for an hour straight and still at 35% power. Pretty sick.
[Asus  Eee Pad Transformer Prime] darkangeldc5:
It still happens but it is far less. At least the thing is usable until asus resolve the issue
[Asus  Eee Pad Transformer Prime] Hockey37:
This seems to have worked for me. 2 hours and no banding.
[Asus  Eee Pad Transformer Prime] Sneaksie:
nVidia and its mobile chips - seems like a story of fail.

First GoForce 5500, i had O2 Flame with it - no drivers where ever released so GPU was simply unusable (except for a couple of little promo games). Thanks to this groundbreaking GPU, the device could stuck in sleep mode ('sleeping beauty'). The only solution was to set it to always on, which led to huge power consumption.

Then Tegra 2 - groundbreaking chip that couldn't play a silly video.

Then Tegra 3. Framebuffer corruption all the way, judging by these screenshots. I think they are going to fix this - by turning off hardware acceleration for interface drawing. That's cool, to buy a tablet with super-ultra-mega-new 4-core (5-core!) GPU and then turn the GPU acceleartion off just to be able to use the device.

Rant mode off...

I hope that i'm wrong and all that is needed for proper functioning is a driver fix for ICS.
[Asus  Eee Pad Transformer Prime] XDATFPrime:
This issue will be addressed in next OTA.
[Asus  Eee Pad Transformer Prime] Andrmgic:
Good to know, if true..

The real question is how did this make it out of QA?

You guys do QA releases, right?
[Asus  Eee Pad Transformer Prime] kurtkbee:
Great to get an official response from an Asus developer (hoping your profile is honest/accurate).

Can you indicate why we are also getting the "unknown serial number" issue? There are lots of complaints about this on the forum is there a fix for this issue coming soon?
[Asus  Eee Pad Transformer Prime] newims2000:
I am 100% agreed with your points. All the hypes about Tegra3 and Asus TP have turned into a big mess. This is one reason the Android tablet will NEVER ever be in par with Apple Ipad. There just no competition for Apple in this space. I don't care if the hardware is the best, but software is not working, then it is still a big disappointment.

---------- Post added at 11:58 PM ---------- Previous post was at 11:55 PM ----------

It probably a rush job to push ICS out to cover their issues with Wifi, GPS, etc. A total mess in my opinion.
[Asus  Eee Pad Transformer Prime] original G:
Light at the end of the tunnel, nice!!! Come on OTA!!!
[Asus  Eee Pad Transformer Prime] tdrussell:
OMG

they

Have

SPOKEN

Thanks ASUS...if that's really you....
[Asus  Eee Pad Transformer Prime] punkrnmn:
Well, besides that horizontal line across the screen, I noticed that the diagonal flicker occurs when you touch recent apps button and have many recent apps (more than 5 or so?) in the list..
[Asus  Eee Pad Transformer Prime] indiscriminant:
I will give it a few more days to see if a new OTA comes out, otherwise I am outside of my 14 day return window and this will have to go back. The update has broken my tablet and I am pretty frustrated about it.
[Asus  Eee Pad Transformer Prime] some_developer:
I just got my TP today. 10 minutes ago. Opened it up, updated to ICS. Boom, permanent screen banding...

I really don't think it is a good investment to keep this device.
[Asus  Eee Pad Transformer Prime] newims2000:
My was also from BB, finally gave up and returned for full refund. Will wait for better and more functional tablet. My experienced with ASUS has been nothing but pain so will likely NOT buying anything from ASUS again.
[Asus  Eee Pad Transformer Prime] some_developer:
I gave it a good charge and the lines went away briefly but as soon as I did a screen rotate they came back. On top of that, I started clicking the launcher buttons and hearing this strange crackle noise that I realized is a broken haptic feedback vibrator.

I was optimistic while waiting for my prime since many on here said that the majority of people have good primes and only the people with bad primes are vocal, but now that I'm just another victim, it doesn't seem as believable. These really are just junk devices rushed out. It's too bad.
[Asus  Eee Pad Transformer Prime] XDATFPrime:
I am software guy. The "unknown serial number" is EMS manufacturing issue. If your device is having this problem hence unable to receive OTA, please contact with service center.
[Asus  Eee Pad Transformer Prime] Zewatanejo:
Turning down the animation scale did reduce the problem of banding, but its still there. Is this really a software problem, or is it never going to solved?

ICS works really find and actually like the device. Tomorrow I am going abroad and I really dont know what to do. Return it orhope and wait for an OTA that solves it.
[Asus  Eee Pad Transformer Prime] bigbrovar:
Its seems Nvidia is only capable of making Gaming focused GPU with horrendous 2D and transition support needed to have a decent UI experience.

My experience on PC has been a case of superb 3D performance but horrible 2D especially in the area of simple desktop transitions. Since am not a gamer I decided to go with Intel chips which performs really well (at least on linux)

I got the galaxy tab 8.9 after hearing about how its the best android tablet (as at then) and was appalled by the amount of lag the device had. swiping between homescreens and during rotation the experience was so bad I wondered how such a product was allowed to be released. Turned out the problem was tegra 2, with a miserably low fill rate, meaning the GPU was unable to handle screen rotation and passes that part to CPU. same thing with swiping between home screens on landscape mode (portrait mode for other tegra2 tablets) I spoke with an android developer on the android irc and he blamed most of the laggy UI issues on honeycomb tablets to tegra2 horribly low fill rate. This explains why my colleagues galaxy tab 7 plus had a much more snappy UI compared to my 8.9 the 7+ ran like liquid on the same honeycomb 3.2 that stutters on my device only difference is the galaxy 7+ is powered by samsung's exynos . you can see for your self the chart below shows how bad the tegra 2 file rate is, and even though the situation is much improved in tegra3 its still not up to the level of over a year old exynos and still far far behind apple's A5.

you can see for yourself here

http://hothardware.com/Reviews/Asus-Eee-Pad-Transformer-Prime-Preview/?page=7

see how low the fill rate for tegra2/3 is compared to the competition, no wonder the ipad and galaxy note and s2 known for their lag free UI experience.

To add salt to injury tegra2 didn't have NEON support which means it lacked GPU support for decoding HD content and u would have to rely on CPU for that (heck my N900 handled HD content better than the galaxy tab 8.9)

Now we have tegra3 as usual its backed with lots of hype buzz words and many people would be fooled by the promise of 4 /5 cores ( and 12 GPU cores) and now users are having screen corruption issues? I hope this could easily be fixed without disabling hardware acceleration for interface drawing. but judging from my experiences with nvidia I won't count on that happening

see how the fill rate
[Asus  Eee Pad Transformer Prime] Jarbings:
My screen flickers sometimes now(after going to the latest update with ICS),

german TF 201 64 GB BCOKAS04xxx device

It happened at:

- detail setting of WLAN setting

- youtube search
[Asus  Eee Pad Transformer Prime] jetbruceli:
U guys mine doesn't do that but maybe its because of the overclock that was enabled after the update?

Nvidia always!
[Asus  Eee Pad Transformer Prime] endless.summer:
ICS update and horizontal lines

I have the horizontal lines after the ICS update, constantly! The issue makes the tablet unusable. (I did not see this problem with Honeycomb.)

The lines appear frequently, yet randomly. I could consistently duplicate the horizontal line problem by downloading Angry Birds Seasons from the market.

I sat on the phone with ASUS tech support, they had me do a factory reset, hard reset, then issued me an RMA for my trouble.

Turning off the "Transition animation scale" does seem to help the problem. (It did pass the "download Angry Birds" test.)

I haven't seen the horizontal lines today but I expect the problem will still occur, just less frequently and more randomly.

I wish ASUS would post an acknowledgement of this problem on the ASUS support website and let us know if it can be resolved with an OTA.
[Asus  Eee Pad Transformer Prime] tshoulihane:
Setting the serial number is probably part of the QA. It's impossible to design a fool-proof final-test process, anyone who thinks otherwise should try working in production for a few months.
[Asus  Eee Pad Transformer Prime] newims2000:
Here is the fix for screen banding issue. Worked for me the last two days without a single screen banding anymore. You need to have root and SetCPU.

In setCPU, set the Scaling to performance! Voila, the screen problem disappeared. If you set at any other Scaling settings, you can see the screen banding issue instantly!!!!!
[Asus  Eee Pad Transformer Prime] SheriffBufordTJustice:
Don't hold your breath for OTA fix.

I just got off the phone with ASUS technical support. What a giant customer service relations blunder. They claim that the ICS update came directly and automatically from Google and that ASUS didn't push the update to their customers' TF201 tablets. Nothing could be further from the truth. To add insult to injury, the only fix that they are currently offering is to mail your tablet back to them (at your expense, not theirs) and they fill "fix" the operating system. The "fix" that they have proposed is to simply reinstall Honeycomb and ship the unit back. What an absolute joke! Frankly I spent thirty minutes on the phone with them with them continually talking in circles. They admitted that they are "working on the issue." I asked them why they don't simply issue an OTA update to fix the issue. Their reply: "that would have to come from Google."

As an aside, I have had this unit for less than 24 hours. I literally took it out of the box, set it up, and downloaded the ICS update (4.0.3).
[Asus  Eee Pad Transformer Prime] indiscriminant:
I have resisted rooting my transformer and prime both due to loosing the ability to watch movies rented from google videos as I have found it extremely easy to use and download to my tablet before work trips.

I have my EVO 3D rooted and have rooted many other devices, use it to tether my tablet actually heh so it isnt for anything other than videos that concerns me.

Can other root users confirm rooting and adjusting the scaling on setcpu fixes the banding/reboot issues? As in YOU HAD THIS PROBLEM, then rooted it and it went away COMPLETELY and never came back. Not the "adjust transitions" and it only makes it less frequent kind of fix?

Or are there other VOD services that let me download for offline use (airplanes) that work with a rooted tablet?
[Asus  Eee Pad Transformer Prime] sandman81:
Asus told me the same thing.

Waited on hold for 30min. was given a service number and was told to call back after I tried the wipes on my wife's and my tablets. That's right two tablets same issue. Waited on hold for another 30min. At first the rep tried to tell me it was a hardware issue and I would have to RMA for repair. I told him that I know it is a software issue and kindly asked when I could expect a patch or reload software so that I could simply reload it myself and be on my way and skip the 7-15 day delay on shipping and waiting for them to reload my machine. He could not answer that so I asked for a supervisor. He put me on hold for another 15min and came back just to tell me that there was none available.

Bottom line we all waited for this nice shiny new piece of awesomeness, put our trust it ASUS, and get the shaft when it comes to customer service. Glitches and bugs happen, I understand that. Bad people skills and poor customer service is just not human like. :eek:
[Asus  Eee Pad Transformer Prime] ToneyEricsson:
Just to ask what are you guys doing rooting before updating to ICS or not bothering?

Should be getting my Transformer Prime delivered tomorrow. Would be nice to have it rooted I'm unsure if rooting is possible after ICS update does anyone know?

Edit: found the answer in development forum and yes you can root on ICS.
[Asus  Eee Pad Transformer Prime] mike infinity:
Rented google videos play back just fine on my rooted TF101 here in Canada.
[Asus  Eee Pad Transformer Prime] indiscriminant:
I never tried it on my TF101, I know on phones you can't do it after rooting supposedly so I assumed it was the same for the tablets.

Can anyone with a rooted TF201 confirm that you can still rent movies from google video and play them? If so I will be doing this until the next OTA comes out so I can get rid of this ridiculous banding issue.
[Asus  Eee Pad Transformer Prime] indiscriminant:
Almost but not quite.

I rooted my Prime to test this theory that we could root and set the governor to performance and eliminate the banding. After doing so it has been outstanding, but not perfect.. I have still had banding show up once, and I have also rebooted once right after I did it.. That is all though in the full hour of tablet use while at work.. I couldn't go 30 seconds without having banding issues before.

Make sure that you also set the scaling adjustment to happen on boot so that if you do reboot it makes things out again, otherwise it reverts to the old scaling and you will have issues again.. Noticed that on my one reboot.

So will it 100% eliminate it, no but it will make your tablet usable again and the difference has been night and day.. I will post again if anything changes and to just give an update.

Also as a side note, I was able to get my Google videos to play even though I was rooted.
[Asus  Eee Pad Transformer Prime] xzombiex66:
will be trying the root method...tonight
[Asus  Eee Pad Transformer Prime] Zewatanejo:
Damn.. I tried to root my Prime, but it doesn't work. All Ive got is a mac and most tutorials for rooting the devices are for Win7. Cant wait to fix this thing.
[Asus  Eee Pad Transformer Prime] original G:
Didn't wanna root my prime but had very little choice. I'm now rooted and used antutu and have no issues with banding after setting it to performance. Hope it lasts until a fix is supplied by Asus. Great find newims2000!
[Asus  Eee Pad Transformer Prime] darkangeldc5:
Locking the cpu at highest speed doesn't sound like a good idea though. is it possible to limit the max freq to lower clock speed?
[Asus  Eee Pad Transformer Prime] JutGra:
This thread was started to try and help us with the banding issue after upgrading to ICS. Thanks for your awesome tech support phone call stories.

I don't understand what planet you people are from or if you have any clue how tech support is run. You called into Asus expecting exactly what? The person on the other end is making MAYBE $10 an hour, has absolutely no power to do anything other than give you the information he/she is provided with. On top of that they have to deal with YOU calling them and harassing them on a product they probably have not even touched yet.

If it wasn't for Asus pushing this tech to its limits then we wouldn't even have a tablet in our hands. Yes, it sucks its not doing what its supposed to. Yes, Asus probably did not put as much time into testing and/or blatantly let it out like this. Its a first gen chip in a first gen tablet and you are expecting it to be perfect.

Contrary to what your post shows, the people scrolling through this forum right now can probably figure out most of our issues, get us headed in the right direction towards a proper fix, or at least offer us an explanation. It would be great if they didn't have to skip over this BS to get to the helpful information they may need.

Thanks for making me have to swipe my prime past your posts and make my screen band more than it has too.
[Asus  Eee Pad Transformer Prime] SVPtje:
Did the same and it seems gone.
[Asus  Eee Pad Transformer Prime] newims2000:
By default, ICS already set the CPU speed to 1.6GHz limit. Yes, you can use SetCPU to lower the CPU frequency to say 1.4GHz. The important thing is making sure you set the Scaling to performance. Any other settings like interactive, ondemand, etc will cause the screen banding.

My TP has no screen banding after doing just this. Not even one since then. I guess it still depends on how severity the screen banding you have on your TP. So, some might occasionally still see screen banding issue even after doing this, but it should at least improved it until ASUS provides a fix for us.
[Asus  Eee Pad Transformer Prime] tdrussell:
So what i'm really curious about at this point is what causes this issue to scale between nonexistent and constant across our devices. Different silicon binning?
[Asus  Eee Pad Transformer Prime] tdrussell:
this clockspeed change has been pretty thoroughly debunked at this point
[Asus  Eee Pad Transformer Prime] tshoulihane:
This is just not true. The default does not use 1.6 GHz, and I don't know why people persist in trying to spread that rumour.

Keeping the CPU locked at 1.2 GHz may still allow it to sleep, it will make the battery drain faster, but shouldn't cause any excessive wear and tear (so long as its a short term thing)
[Asus  Eee Pad Transformer Prime] daddyd302:
Mine seems to do it when an app crashes. The only way to get rid of it is to turn it on and off.