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Replacement LCD for G Tablet!

Deleted first post. Stock screen is a no go. We need a new LCD all together

I was thinking about doing this, and if it is matte then that would make a difference. Just not sure if it is worth it, if the Adam comes out soon I may pick one up.

If you flip the Gtablet upside down, you will notice the angles look much better. Not sure why they mounted in a manner that has weaker angles, but it seems the most cost efficient way for a better display is if the connector, ribbon and bezel mount accommodated a 180 degree rotation
Adam is still in marketing concept stage for customer messaging. No word on their blog yet on distribution or mass production agreements by a contract manufacturer. Probably March release, if I were a betting person.

Hrmm well I Still wanna try this but I Probably wont get to it Untill atleast 2 more weeks. Broke till next pay check -_- Black Friday Deals Drained me....If all turns out good Ill post results.

http://shop.ebay.com/?_from=R40&_trksid=p5197.m570.l1313&_nkw=B101AW06&_sacat=See-All-Categories

HorsexD said:
Ok so I was Reading the Hardware Breakdown thread and saw that the Model for the lcd display used in the g tablet Is used on notebooks. So if I Buy a Replacement Screen of the same model im assuming it would work if put on correctly right? Well the one in the G tablet looks to be Matte Finish type which explains bad viewing angles but I found this website that sells 2 different types of lcd Displays that should be interchangable. the Next time i Get Payed im Gonna buy the Glossy Version wich should provide Better Viewing Angles and Superior Crispness and see if it work as planed. Could this be the Screen Problem Solution we have been waiting for? Heres the Link
http://www.laptopscreen.com/English/screen-part-number/B101AW06~V.1/
Hopfully it works with our tablet and Improves the Screen Angles! This might be worse for outdoors though. if you click 'Info' on glossy it explains more!
Click to expand...
Click to collapse
This sounds great let me know how it works out! My gTab arrived with about 10 dead pixels (most of them are small and i cant see them without being picky) and I am eager to try something else.
I thought viewsonic would be more picky about what kind of screens they put in their stuff.

These laptop screens might be the same, keep in mind. My netbook exhibits the same solarizing effect as my GTab - you just can't see it since you usually look at it head on.

roebeet said:
These laptop screens might be the same, keep in mind. My netbook exhibits the same solarizing effect as my GTab - you just can't see it since you usually look at it head on.
Click to expand...
Click to collapse
I know all my laptops have better viewing angles or at least richer blacks. So I do have some hope at improvement, since the panel in mine is so messed up.
Does anyone have any experience with these exact panels? any recommendations?

any reviews on this!

the screen from the Dell Inspiron Duo (if it has the same single connector) seems to have a lot better specs. It's supposed to be 1366*768 with much better viewing angles than this piece.
In fact, I'm considering returning my GTab for one.

t3h_g3n3r4l said:
the screen from the Dell Inspiron Duo (if it has the same single connector) seems to have a lot better specs. It's supposed to be 1366*768 with much better viewing angles than this piece.
In fact, I'm considering returning my GTab for one.
Click to expand...
Click to collapse
3.5 hour battery life? Ew! Though the screen is nice; if it fits I wouldn't mind getting one and putting it in.

Marine6680 said:
3.5 hour battery life? Ew! Though the screen is nice; if it fits I wouldn't mind getting one and putting it in.
Click to expand...
Click to collapse
Battery life isn't issue #1 for me. Usability is, and that's where the gtablet starts falling off for me. I feel that I can do a lot better for the money.
--
I think the issue with the Dell screen is going to be the connector. I get the feeling nobody else is using the tiny non-locking Molex connectors the gtablet uses.

To those looking for reviews, just Google "Pixel Qi Review", I can't post links otherwise I would do so. There's several articles on Engadget, and a few videos on Gizmodo and Slashgear. The idea behind Pixel Qi is that in sunlight you can disable the backlight, and the sunlight is reflected off the back (inside) of the screen; this makes the sunlight act as a backlight, resulting in being more viewable outdoors. Also, the display can be switched between 'normal' LCD and 'e-paper' style as well. Really, the biggest reason I'm interested is the viewing angles. Netbook LCDs have horrible viewing angles (the G Tablet's screen is a Netbook LCD), so I would love to see this tablet with a better display.

Pilxel qi seems to way way more expensive priced at almost 300$, Which is almost the price of another tablet. Also do they even make pixel qi screens that work on this tablet? I couldnt find it on the website

no-success said:
This sounds great let me know how it works out! My gTab arrived with about 10 dead pixels (most of them are small and i cant see them without being picky) and I am eager to try something else.
I thought viewsonic would be more picky about what kind of screens they put in their stuff.
Click to expand...
Click to collapse
Why wouldn't you return that?

katmandu421 said:
Why wouldn't you return that?
Click to expand...
Click to collapse
I just might, but i waited for a few weeks trying to pick one up. most of the pixel defects are small and right at the edge of the screen. there is one kind of annoying one right in the middle though :/

no-success said:
I just might, but i waited for a few weeks trying to pick one up. most of the pixel defects are small and right at the edge of the screen. there is one kind of annoying one right in the middle though :/
Click to expand...
Click to collapse
Return it! Complain! get a New one! dont stand for somthing less than satisfactory!

has anyone tried swapping out the screen?
It is my only gripe about the tablet lol.
Honestly i dont care though because all other tablets are priced 100-200 more and have lower hardware specs.
I can live with the screen considering it really isnt too bad... just by comparison it isnt as good as the iPad.
I cant compare 7" tablets though... because ... frankly they are 7 inches... you squeeze more pixels into a smaller screen and it will look nicer... simple as that.
If you think about it... us early g-tab adopters can hack ours up and when we want a new one ... probably sell a hacked up gtab for a pretty penny when we are done with it.

I'm not sure why there are so many complaints. How often are you going to look at a tablet at sharp angles?? The only legitimate angle that someone mentioned was if the tablet was laying flat on a table in front of you and you were reading an eBook or something.
Maybe it's just the way I use it, but I don't have a problem with the screen at all.

lostpilot28 said:
I'm not sure why there are so many complaints. How often are you going to look at a tablet at sharp angles?? The only legitimate angle that someone mentioned was if the tablet was laying flat on a table in front of you and you were reading an eBook or something.
Maybe it's just the way I use it, but I don't have a problem with the screen at all.
Click to expand...
Click to collapse
Landscape Mode is Fine but I Cant stand it when Im Trying to read a Book in Portrait mode. Kinda have to tilt it and it just looks stupid. This tablet is Best Landscape only. Thats why It Would be Nice to have a Better Screen With Better Angles. Theres 3 Versions of the LCD Screen I Mentioned on the first post. I Wonder if one of those would fit....hmmm....

[Q] Display response time / ghosting

Has anyone else noticed the large amount of ghosting the Xoom display has? Its very prevalent to me, especially when a red or black object moves across the screen (red angry bird (especially when zoomed in), red icon on homescreen while scrolling (pew pew), black bars between gallery images, etc).
Its bothering me to the point of returning it (and looks like I'll have to eat the 15%/$90 restocking fee at Amazon). I'm wondering if the Asus Eee Pad Transformer or Samsung Galaxy Tab 8.9/10.1 will have a better response rate. I know they both should have a better viewing angle with their IPS displays.

I have an ISF certificate and don't see any ghosting...

Really? Could it be I have a defective unit. I just find it hard to believe I would be the only one to have/see this.

Listen enable flash, then open this site on your xoom try to go full screen and tell me your findings.
http://www.prad.de/en/monitore/testsoftware/ghosting.html
Btw I have ghosting as well, but never noticed it on before. Thanks for the heads up. Ill reply back when I get more info.
I have no ghosting at all on my nexus one, the screen size have a huge effect on ghosting btw, but just an fyi.

2 Days ago I've been playing DoodleJump on the Xoom, and noticed the game running faster (you can test this) ofcourse you'll have to be familiar with the usual pace of it on the phone version of the game.
I've suspected the frame rate per second to be higher on the Xoom than the Nexus one...which could also be factored in, in refresh rate and then added to the whole performance. Which could spark problems like the ghosting we are seeing.(if you ever tried emulating a PXS on a PC you'll know what I mean)
I know that the screen response time could be a major factor but I couldn't get any information regarding the specifics of this screen. (btw you could be holding two Xooms with different screens)
So my guess for now, is the problem is with the refresh rate on the screen or the way the JIT compiler emulates...which could be solved with an update or a software tweak. Take what I said about the software side of this with a grin of salt

wow horrendous ghosting!!!!! (Using the ghosting test above)

Bumping this thread. Just noticed this on my xoom! Is it normal?

Another test : try going to http://tinyurl.com/xoghost and watch the drumsets at the bottom of the page and the guy in the second last row of second page ghost when you scroll the pages up and down.

Sorry... just saw the responses to the thread. For some reason my email notifications were off.
I ended up returning my Xoom to Amazon while still in the 30 day window so I can't do any further testing. One of the primary reasons for returning was due to the screen ghosting (and overall screen quality). I've also got my eye on the Asus transformer with the IPS display, but it keeps getting delayed. I might just wait until fall reign the next wave of tablets come out... maybe something with a tegra 3
Sent from my GT-I9000 using XDA App

I'm also seeing quite a bit of ghosting. Is this typical for xoom users?

Selbmig said:
I'm also seeing quite a bit of ghosting. Is this typical for xoom users?
Click to expand...
Click to collapse
It would seem so, It's absloutely terrible using the ghosting test linked. I'm getting a ghost the length of the actual cube trailing on my screen, in full screen. =/

ASUS Transformer doesnt suffer that much with the links you posted.

There are two different panels for xooms, one being AU optronics brand (typically sited as the cheap/crappy display) and the Sharp brand display which is supposed to be better.
I have the AU Optronics display and going to the ghosting URL linked previously I get terrible ghosting.
Can anyone with the sharp display test this and see what they see?
You can determine the display type by typing dmesg into a term emulator.
Sharp panels say: 'lcd_manfid=SHP'
AU panels say: 'lcd_manfid=AUO'
Now since dmesg is the kernal ring buffer you might need to reboot before you see it in your dmesg output.
Sent from my Xoom using XDA Premium App

I'm not surprised by the ghosting on these displays. Every mobile device I've owned has ghosted horribly. Even a lot of monitors around the office do it, but people don't seem to notice or care. I've always used 2ms displays at my home setup because of this. That being said, I paid about twice what other displays of similar size cost. People don't want to see the price of their precious electronics going up without seeing more nice specs on the list. A low response time display won't sell as well as a faster CPU or RAM... If you find a market that is looking at those 2 specs then make them great. Cheap out on the rest.

Actually this ghosting effect is due to the speed at which the pixels can change from one color to another. Some displays have issues with different color transitions.
This is something that doesn't happen on my nexus ones amoled display. And most of my monitors that I have also don't have this issue, at least to the degree of the xoom. It is disappointing to see how cheap the xoom display is.
I bet my droidx doesn't suffer from this either.
Sent from my PC36100 using XDA Premium App

Maybe I'm crazy, but I began to notice ghosting on the screen, especially on the desktop after I upgraded to 3.2 Honeycomb.
If anyone can test whether the effect exists in 3.0 and 3.2, I appreciate it.

UK Xoom Wi-Fi only and I get ghosting too!
lcd_manfid=SHP

smsmasters said:
UK Xoom Wi-Fi only and I get ghosting too!
lcd_manfid=SHP
Click to expand...
Click to collapse
Yes, there's some ghosting, but so what? What does it actually affect? I haven't found any effect whatsoever.

Doesn't bother me. Just posting my findings.
Sent from my Xoom using Tapatalk

smsmasters said:
Doesn't bother me. Just posting my findings.
Sent from my Xoom using Tapatalk
Click to expand...
Click to collapse
I know...I wasn't shouting or anything ;^ )
I just think this ghosting thing is not a big deal.

after consideration might return my ipad for it

Ok, I took the time to sit down and write down my experience with both iOS and android so hopefully this will help.
When I had my ipod touch 4th generation.
I used it mostly for music and browsing
Loved to watch movies on it because of its retina display
Played games occasionally when I wasn't home and had nothing to do or had to wait for something.
That was pretty much all I did with iPod touch
Now my EVO 4G
I use it for mainly for music and browsing
I use it for movies
I did install some emulators had alot of fun with those for about 2 weeks... might be useful when i'm bored
had a custom rom CM7 on gingerbread, got very buggy over time, lots of crashes. However just flashed to an unofficial jellybean rom, i've been liking it but I tend to with most new roms due to the novelty factor.
As you can see, I don't really use that many apps. In some aspects I feel like some of the app store stuff is useless( what possibly could you need besides a browser, video player, a few games to keep you busy)
I however do need splashtop 2 so I can remote use my computer for CAD and PDF annotation. This has been on the ipad and was just released for android a couple of days ago. Because I need to be able to write with a stylus, is the asus tf700s digitizer accurate? I heard the prime had a terrible digitizer that made writing with a stylus impossible.
I would also like to have a good pdf annotator on the os itself for ebooks and such, and a good notetaking app.
I will say this now, if the asus had the same aspect ratio as the iPad and if the production consistency wasn't so finicky i probably would have gone for it in an instant, but because it's not, I still have a hard time deciding.
so this is the main decider: If the digitizer is accurate and I can be guaranteed a model with no flaws within one to two returns... then i will get it.

bump

uwotm8 said:
bump
Click to expand...
Click to collapse
>bumping
>on xda
Lets go, 4chan is this way.

jdeoxys said:
>bumping
>on xda
Lets go, 4chan is this way.
Click to expand...
Click to collapse
inb4 thread lock

uwotm8 said:
inb4 thread lock
Click to expand...
Click to collapse
Makes me sad OS war starters like you browse 4chan.

jdeoxys said:
Makes me sad OS war starters like you browse 4chan.
Click to expand...
Click to collapse
nope, not a 4chaner... and I wasn't trying to start an OS war... you guys turned it into one... I'm planning on getting the infinity anyways.

uwotm8 said:
nope, not a 4chaner... and I wasn't trying to start an OS war... you guys turned it into one... I'm planning on getting the infinity anyways.
Click to expand...
Click to collapse
Ill give you the benefit of the doubt and assume you're not trolling. The digitizer on the infinity is extremely sensitive and accurate. I've compared to to a friends ipad 2 and the infinity's sensitivity and accuracy far outstrips the ipad. Also, for splashtop, the infinity is better as well because the 8:5 aspect ratio means you can maximize screen space if you have the most common 1920x1080 resolution while still being able to see the navbar. Movies also look better on the infinity because there aren't black bars and there is no upscaling from 1920 to 2048. As for quality control, I can't say because I've only got one infinity and its perfect.

uwotm8 said:
I however do need splashtop 2 so I can remote use my computer for CAD and PDF annotation. This has been on the ipad and was just released for android a couple of days ago. Because I need to be able to write with a stylus, is the asus tf700s digitizer accurate? I heard the prime had a terrible digitizer that made writing with a stylus impossible.
Click to expand...
Click to collapse
Actually Splashtop Thd and Splashtop HD has been out for android for a few months now. I have the THD version. Its pretty solid you can even play PC games with it.
The digitizer is pretty solid on the Infinity. When I had the Prime it was terrible I couldn't make a circle without it looking like cube! Its night and day with the infinity.
uwotm8 said:
I would also like to have a good pdf annotator on the os itself for ebooks and such, and a good notetaking app.
so this is the main decider: If the digitizer is accurate and I can be guaranteed a model with no flaws within one to two returns... then i will get it.
Click to expand...
Click to collapse
There are plenty of apps for this as well. You would be much happier with this tablet. Its almost a laptop replacement imo
Brought to you by my Asus Transformer Pad Infinity TF700T

jdeoxys said:
Ill give you the benefit of the doubt and assume you're not trolling. The digitizer on the infinity is extremely sensitive and accurate. I've compared to to a friends ipad 2 and the infinity's sensitivity and accuracy far outstrips the ipad. Also, for splashtop, the infinity is better as well because the 8:5 aspect ratio means you can maximize screen space if you have the most common 1920x1080 resolution while still being able to see the navbar. Movies also look better on the infinity because there aren't black bars and there is no upscaling from 1920 to 2048. As for quality control, I can't say because I've only got one infinity and its perfect.
Click to expand...
Click to collapse
alright, thanks alot man!
jjdevega said:
Actually Splashtop Thd and Splashtop HD has been out for android for a few months now. I have the THD version. Its pretty solid you can even play PC games with it.
The digitizer is pretty solid on the Infinity. When I had the Prime it was terrible I couldn't make a circle without it looking like cube! Its night and day with the infinity.
There are plenty of apps for this as well. You would be much happier with this tablet. Its almost a laptop replacement imo
Brought to you by my Asus Transformer Pad Infinity TF700T
Click to expand...
Click to collapse
yup, I just needed to know that the digitizer is accurate on this thanks!
so 32gb is the smarter buy since i can always get an sd card?
And what problems should I check for as soon as i get it?
1.light bleed
2. green camera issue
3. bad battery?

uwotm8 said:
alright, thanks alot man!
yup, I just needed to know that the digitizer is accurate on this thanks!
so 32gb is the smarter buy since i can always get an sd card?
And what problems should I check for as soon as i get it?
1.light bleed
2. green camera issue
3. bad battery?
Click to expand...
Click to collapse
Yes 32gb version is plenty since you can expand that pretty easily with external micro sd and if you go for the dock as well it will add another full size SD slot. Then you have your portable drives.
*On boot up check for light bleed. If you can live with what you see check that off. You won't see it during normal operations anyways.
*then go through the motions.
-Check cameras
-Check Haptic feedback
-Battery drain (amount of heat)
-Check to see if screen is separating.
-Check overall build quality
- It should want to update firmware once your on the home screen.
Brought to you by my Asus Transformer Pad Infinity TF700T

jjdevega said:
Yes 32gb version is plenty since you can expand that pretty easily with external micro sd and if you go for the dock as well it will add another full size SD slot. Then you have your portable drives.
*On boot up check for light bleed. If you can live with what you see check that off. You won't see it during normal operations anyways.
*then go through the motions.
-Check cameras
-Check Haptic feedback
-Battery drain (amount of heat)
-Check to see if screen is separating.
-Check overall build quality
- It should want to update firmware once your on the home screen.
Brought to you by my Asus Transformer Pad Infinity TF700T
Click to expand...
Click to collapse
ok so even if i get light bleed? i wont notice it/ its only on the black screen?
what do i check when I drain the battery?

uwotm8 said:
ok so even if i get light bleed? i wont notice it/ its only on the black screen?
what do i check when I drain the battery?
Click to expand...
Click to collapse
anyone?

uwotm8 said:
ok so even if i get light bleed? i wont notice it/ its only on the black screen?
what do i check when I drain the battery?
Click to expand...
Click to collapse
uwotm8 said:
anyone?
Click to expand...
Click to collapse
Sorry, Yes I have some light bleed but I don't notice at all during normal operations. It's only during boot up from a black background with Super IPS enabled is when you will be able to tell if any.
Once you drain the battery the tablet will shut down on its own. Plug it in and charge to 100% It's best to not use it during this time. If you have rooted already you can use Battery Calibration to reset your Battery data just to make sure everything is in sync. Obviously you will have to root your Infinity first to use Battery Calibration.

Have you returned your ipad yet?...or are you still busy researching all the reported bugs with the Asus non-ipad device?

Thats OK said:
Have you returned your ipad yet?...or are you still busy researching all the reported bugs with the Asus non-ipad device?
Click to expand...
Click to collapse
yup, returning it tomorrow... i need to stop worrying so much

The black levels...

They're not at all awesome!
I'm coming from a Galaxy Nexus (Amoled display) which has close to perfect black levels, and a ASUS Transformer (IPS display) which while it wasn't to brag about, it was better than the Galaxy Note 10.1's screen.
I was really looking forward to the PLS display on the Note, I heard nothing but great reviews on the tech, but this is really bad.
I mean the blacks aren't even even, its more purple than black.
Is this normal for PLS?
Is anyone else having this issue?
Were there any mods that can be done that fix this issue on other Samsung PLS tablets?

I don't see anything wrong with the black level but I haven't tried using the tablet in the dark yet. Don't compare AMOLED with LCD. LCD will always have ****ty black because of the backlight. The only LCD type I know that has decent black level is CPVA but it's not used in tablets and it's still far from perfect. Asus Transformer TF101 has much worse black level (I have both). Are you talkin about some newer Transformer? Or maybe your brightness is set too high?

Also keep in mind that a lot of websites don't use pure black fonts.
Try turning the display mode up to vibrant and reducing the the brightness.
Sent from my GT-N8013 using Tapatalk 2

if he's referring to the infinity, it's got a very annoying dynamic contrast. the screen dims and brightens as the screen changes, but it's not very discreet at doing so. my main reason for rooting the tf700 was to disable this stupid feature.

I'm sure I'm missing aomething, but I have a decent sum tied up in a plasma and HT equipment to get blacks close to right at home, so am always amazed to see people moan about black levela on $500 mobile device. I'm still amazed I can watch pretty hifh quality movies and even live tv on a mobile device like this, and just cant imagime being worried about blacks unless just atrocious. Am I expecting too little froma device like this?

I was referring to the tf101, but I went to best buy again and compared it to the demo model and realized mine was completely off.
So I TiB backed it up, flash that bad boy back to stock and exchanged it. This new screen is way better.
Although the viewing angles aren't amazing its still an awesome tablet.

Yeah, the viewing angles are the only disappointment for me.

toenail_flicker said:
Yeah, the viewing angles are the only disappointment for me.
Click to expand...
Click to collapse
Ive never really gotten the whole viewing angle argument. I pretty much look right at my tablet when using it.
Sent from my GT-N8013 using Tapatalk 2

mitchellvii said:
Ive never really gotten the whole viewing angle argument. I pretty much look right at my tablet when using it.
Sent from my GT-N8013 using Tapatalk 2
Click to expand...
Click to collapse
maybe his significantly other has confiscated the device and the only way to use it is over her shoulder

mitchellvii said:
Ive never really gotten the whole viewing angle argument. I pretty much look right at my tablet when using it.
Click to expand...
Click to collapse
Some are pretty bad like the iPad3 where if you're not directly front and center there is significant brightness fall off.

[Q] Muted colors :'-(

Is there a way to boost the color on the screen?
Compared to my Samsung galaxy S3 the colors on my transformer looks very muted, there are no pop what so ever to the displays dashboard.
I bought this unit to replace my first gen iPad, and so far the screen is my biggest gripe with the Asus. If I play a game like ShadowGun for instance the colors seams to pop a little more or are I imagining this? Even with the backlight turned down a little for better contrast the colors still looks dull.
This is almost like a deal breaker for me.
Any advice? Is there a way to boost the colors?
Thanks in advance.

webdiddy said:
Is there a way to boost the color on the screen?
Compared to my Samsung galaxy S3 the colors on my transformer looks very muted, there are no pop what so ever to the displays dashboard.
I bought this unit to replace my first gen iPad, and so far the screen is my biggest gripe with the Asus. If I play a game like ShadowGun for instance the colors seams to pop a little more or are I imagining this? Even with the backlight turned down a little for better contrast the colors still looks dull.
This is almost like a deal breaker for me.
Any advice? Is there a way to boost the colors?
Thanks in advance.
Click to expand...
Click to collapse
No solution. The screen is also my biggest issue after the other long list of issues I've had! Best solution is to turn up the brightness, seems to give colours a bit of a boost, if not the battery.

Do you have the tab with power saving mode? When it is in power saving the colors kind of change...

I'm satisfied with the color range on my TF300, but you should understand that the Galaxy SIII has an AMOLED screen. That's a completely different technology from LCD, and is known for very bright, lively colors.

geldebanho said:
Do you have the tab with power saving mode? When it is in power saving the colors kind of change...
Click to expand...
Click to collapse
At least not what I know of, I have fiddled with all of the setting and think I have it all on full blast.

dsf3g said:
I'm satisfied with the color range on my TF300, but you should understand that the Galaxy SIII has an AMOLED screen. That's a completely different technology from LCD, and is known for very bright, lively colors.
Click to expand...
Click to collapse
My first gen iPad also rocks a lcd screen I believe, and it displays way more vivid colors.

tegra prism is for you my friend. it's in the play store.
Sent from my ASUS Transformer Pad TF300T

atomicblue said:
tegra prism is for you my friend. it's in the play store.
Sent from my ASUS Transformer Pad TF300T
Click to expand...
Click to collapse
That app really looked promising, sadly i didn't work on my TF300T, I only get a white screen and it's not responding. :crying:

Same here, only white screen sadly.
Skickat från min Transformer Pad TF300T

Maybe it requires root

solefero69 said:
Maybe it requires root
Click to expand...
Click to collapse
Mine is rooted, it did ask for root but still didn't work even after I granted it.

webdiddy said:
Mine is rooted, it did ask for root but still didn't work even after I granted it.
Click to expand...
Click to collapse
I'm on Hydro JellyBean and it works good !

if you guys are talking about the "nvidia smartdimmer feature" (or whatever they call it) which constantly automatically adjust the screen brightness/backlight depends on what's being displayed on the screen, then you just wasted your money for that nvidia tegra prism toggle app because this feature can be disabled in asus customized settings (for jelly bean)
* i'm on ICS .30 with root access and i can disable this stupid "feature" by using terminal with this command:
echo 0 > /sys/devices/nvhost/tegradc.0/smartdimmer/enable
to enable use this command:
echo 1 > /sys/devices/nvhost/tegradc.0/smartdimmer/enable
if you guys are talking about other problem, then i'm sorry i couldn't help