Database Users

Have I changed the colour resolution by mistake?

I did a search so I hope this hasn't been asked a million times before. I have noticed that I may have lost some resolution on my XDA Mini S
I synchronised over a photo – that I had taken with a camera, I had it as my ‘screen saver’ on the today page – looked good. Really clear just as you would expect
I noticed a day later that the screen saver looked a bit rubbishy – then I checked my photos on the phone and they all look like they have lost resolution – there is a distinct lack of colour and clarity. Almost like an Andy Warhol painting.
Taking a photo also produces the same sub standard quality - so I'm hoping that I may have done something by mistake that is easy to fix.
I have had the phone for 3 days and apart from the photo have also uploaded Wisbar onto it - apart from that I haven't done anything
As a side note Bubble Breaker seems to have a lack of colour as well – although admittedly this could be my imagination.
Any help greatly appreciated!

You cant change color resolution on your screen its 64K and fixed. What screensaver are you using? It may have a bearing on your problem but it does sound like a graphics hardware fault. Do a hard reset just to be sure of this though as this will rule out any software conflicts. How to do the hard reset is in the manual.

Thanks Mark
I think you are dead on - I did a hard reset and it still looked rubbish :roll:
Also to back up what you said :
If i look through the camera/video capture anything with red in it is all fuzzy and hazy, whereas everything else is 'perfect', and
Importing the photo back onto my laptop the photo looks OK so it's def what the xda is displaying and it seems an issue with the colour red.
Many thanks for your help - doh i hate getting a new toy and returning it straight away!!

Galaxy S I9000 screen problem

Suddenly the screen of my "samsung galaxy's" seens to lost resolution, looks blurred and weak colors.
It looks like when changing the resolution of a monitor to display fewer colors.
Please can any good soul help me?

completing information
I also noticed that the button used to end the call, it seems
orange and not red as it should.
I restored the settings but not solved the problem. I'll try to flash the rom again to see if it works, but seems to be a hardware problem that appeared out of nowhere

rodrigoresende said:
Suddenly the screen of my "samsung galaxy's" seens to lost resolution, looks blurred and weak colors.
It looks like when changing the resolution of a monitor to display fewer colors.
Please can any good soul help me?
Click to expand...
Click to collapse
That do not sound so good. Looks like a hardware failure to me. Do you have the screen on full brightness all the time? Perhaps you could try changing display density in build.prop and reboot. How long do you have your sgs?
Sent from my GT-I9000 using XDA App

Galaxy S screen problem fault
I am having the same problem. Vodafone Australia stock.
The screen has lost its clarity.
Actually, it appears as though every 2nd horizontal line has been lost - this is quite evident when you scroll through a list that has dividing lines (Eg. Scroll through settings - the separator lines alternate visibly as you scroll).
I've had the i9000 for just under 4 weeks and this fault occurred without any reason (not dropped, no water damage, not exposed to heat, etc). The phone was fine one minute and then the next, it became blurry.
The colours all look flat, the background is no longer crisp black, it is light black/grey as if the LCD that had its brightness settings turned up too high.
Also, tried upgrading Android to 2.2 (from 2.1) and that didn't help. This fault appears to be a hardware fault - you can see the loss of resolution when the Galaxy S logo appears when you first turn the phone on (before Android boots). Look at any curved text/lines and you will see that it appears with jagged lines.
Don't waste your time doing the factory reset, upgrades, etc... It is a hardware fault. I spent a bit of time running the screen through the LCD tests " *#*#0*#*#* " and downloading DPI checkers, etc.. The LCD test shows the solid Red, Green and Blue are ok, as was the dimming test.
The image looks grainy as if it was displayed in the wrong or low resolution. It looks like an old school CRT screen at VGA resolution - almost pixelated.
I have installed the Aries bootloader and the small font text displayed also looks grainy and very hard to read.
Have a look at the two images I've attached.
Real shame, I was starting to get attached to this phone.
PDA: I9000HVJP4
PHONE: I9000HVJP3
CSC: I9000VAUJP4
Build info: 2010.11
VT

First step would be to backup and do a factory reset for any major problem .
jje

I already tried that and it did not help.
JJEgan said:
First step would be to backup and do a factory reset for any major problem .
jje
Click to expand...
Click to collapse

Don't waste your time. If you got warranty, you are going to get a new Screen or perhaps a new phone. Go for it.

rodrigoresende said:
Suddenly the screen of my "samsung galaxy's" seens to lost resolution, looks blurred and weak colors.
It looks like when changing the resolution of a monitor to display fewer colors.
Please can any good soul help me?
Click to expand...
Click to collapse
Did you changed kernel? which kernel are you on?
I had a similar experience (not so bad) when trying some kernel with sharpness and color fixes.
You could try flashing hardcore's speedmod k13c Kernel, it also has some sharpness and color fixes but his work very good.

i don't have thi problem

I have the same problem, just purchased a i9000 four days ago, and it fail after 30 minutes of use .
It si very strange, because if i zoom a image, it will also enlarge the banding gradients (like if the image was low quality)
THe problem only appears wirh dark colors, strong colores dont have any problems.

this sounds like a display problem
doing what was said dhiru1602
dhiru1602 said:
Don't waste your time. If you got warranty, you are going to get a new Screen or perhaps a new phone. Go for it.
Click to expand...
Click to collapse

Display problem / Weird color stripes

Hello all,
I've got the SGS II for about 1 week now and at first I thought it was a software issue. The thing is, when I'm on a very light colored background ( Market, facebook, whatsapp or whatever ) You see smudged out stripes from the text or any picture that is on there. They're all faded stripes. I thought it was banding but this is something totally different.
What's even more weird- it only happens when I'm outside the house, so my guess is that the brightness sensor plays a part in this? When I'm inside the effect is minimal to none but when I go out or to a very bright place, the stripes are extremely annoying. ( will take pictures for reference when I get the chance )
Would you say this is a manufacturing fault?
Please help if you've encountered something similiar.
Thanks!

Here are some images, the stripes are not that evident right now. They seem to get worse when I'm in the sun.

Looks like some polarising effect.

Should I return to the shop to get this swapped? It seems to me that the screen is defect???

Return!! It seems alot of people are having screen problems.

Same issue on my SGS2.
Was perfect during one week then theses anoying stripes!!!
Did you perform a 1:1 exchange?

There were similar problems on the Sensation forum and it was found to be app/widget conflicts.

If you turn off auto-brightness and also the power saving lcd brightness mode under display in settings does it still happen? You mentioned it happens when you go outside so was curious if you adjusted brightness manually if it still happens

Sooooo....
Yesterday evening I changed form litening 1.5 to the stock rom on KF1 with full wipe.
After that stripes where still there.
Went to bed.
Woke up this morning: Big surprise stripes were almost invisible!!!
Battery 40%
BUT
today I used the GPS google navigation during 1h and discovered that theses stripes appeared again and they are very strong.
- No link with app/widget, nothing installed .
- Didn't touch on settings display auto-brightness before the problem. Tried after but nope.

I tried this today
(all credits to Cost from french forum tmaddict)
Flashlight to use white light during half an hour.
Stripes almoust disapeared...
Then picture with high contrast and color.
Stripes came back.
Conclusion :
With SGS2 you can encounter a display refresh problem.
Not solved btw => screen defect => exchanging it today.
Thierry.

For those who have a perfect display! (but also for others)

Hello everyone,
I would like who claims to have a perfect display (as well as all the others) to Try this test:
- Completely dark room and eyes accustomed to the darkness for a few minutes
- Completely black screen (like the one in the test screen by typing * # * # 0, but also any settings menu screen that has not written)
- Minimum brightness (but can be seen even at maximum brightness).
If there are, you should see black spots darker than the background black.
I have them and at night are quite annoying.
I need to figure out if it is a problem of all devices or only of some (in this case tomorrow i will apply for replacement).
Please, you who are reading now, don't leave without doing this little test, it only takes 5 minutes
Thanks: D

Are you nuts? While this may be new to you, there's a 200+ thread already going on this that was started in May. We don't need another 200 pages of "yes it is," "no it isn't." The short answer is yes, there's banding on the 1/4 left side of the display but for most people it can only be seen in a dark room, at 10% brightness, on a grey background, and by taking a pic of the phone. It's been that way since the phone launched and at this point choices are: 1) live with it, 2) return or sell the phone.
http://forum.xda-developers.com/showthread.php?t=1079444

http://forum.xda-developers.com/showthread.php?t=1310602
http://forum.xda-developers.com/showthread.php?t=1197743
Apparently some don't have this issue, as you can see in the first listed thread. Difficult to confirm or not of course, I know mine does have smears/smudges/lines and no it is not grease.
@Barry don't think he is talking about the yellowish tint.

You read this on another thread and started a new one?
I saw the exact same thing on a post yesterday..
Sent from my GT-I9100 using xda premium

Dude, If I may :
before asking us to show the perfect screen (which does not exist actually), please consults an eye specialist and then, come back to XDA.
Regards.

derek88 said:
Hello everyone,
I would like who claims to have a perfect display (as well as all the others) to Try this test:
- Completely dark room and eyes accustomed to the darkness for a few minutes
- Completely black screen (like the one in the test screen by typing * # * # 0, but also any settings menu screen that has not written)
- Minimum brightness (but can be seen even at maximum brightness).
If there are, you should see black spots darker than the background black.
I have them and at night are quite annoying.
I need to figure out if it is a problem of all devices or only of some (in this case tomorrow i will apply for replacement).
Please, you who are reading now, don't leave without doing this little test, it only takes 5 minutes
Thanks: D
Click to expand...
Click to collapse
If you can ever see what you describe under normal use then it is a problem. If you can't see it under normal conditions then you are simply looking for problems and it's nothing to worry about. It's just what SAMOLED screens look like when they're "off", but not off.

I see this every day when I go to bed as my phone is also used as a night clock.
I have the font set to a very low brightness font, except for me I see lighter splotches on an otherwise black background.
I went through 4 SGS2's trying to find one that didn't have it. They all did. Bad batch I guess.
It wasn't a major deal for me so I just live with it.
It's a shame but meh. otherwise this phone is fantastic.

[Q] Have you experienced this Screen problem (Fading out) ?

My Nook STR display looks like it has worn out or faded out.The (black) colour seems worn out , dimmed and heavy ghosting.(even after shut down, see the attached images).I can recover it bit by refreshing the scree (everytime I turn a page) but it is annoying and distracting.And this happen after about 5 min of booting and soon after nook start it look ok (but dimmed a bit)
This started to happen about a month ago and I have been using my Nook for 2 years now without any problem.
To solve this I restored it using the Nook Manager but the problem remains.
Please give me your views and advice. I am suspecting a hardware problem.
Note I don't use any apps like NoRefresher or FastMode.
[I'm new to this thread posting and apology for mistakes]
Thank You in advance
https://my.pcloud.com/publink/show?code=XZRX5RZfborCh0jJ00V1zcOvKWHc7gwGIfy
https://my.pcloud.com/publink/show?code=XZdV5RZEdsmMHOOSfLRcde3suMgH0CrGBR7
https://my.pcloud.com/publink/show?code=XZiV5RZtRpXAJo8To49VJ8B9UtopRqExIW7
https://my.pcloud.com/publink/show?code=XZNV5RZVSgEsKNokHHPGt15BRzBA0J82Pey

Somebody like to help Please

I'm no expert but I can't imagine that something like that is NOT hardware-related.

NookST Student said:
My Nook STR display looks like it has worn out or faded out.The (black) colour seems worn out , dimmed and heavy ghosting.(even after shut down, see the attached images).I can recover it bit by refreshing the scree (everytime I turn a page) but it is annoying and distracting.And this happen after about 5 min of booting and soon after nook start it look ok (but dimmed a bit)
This started to happen about a month ago and I have been using my Nook for 2 years now without any problem.
To solve this I restored it using the Nook Manager but the problem remains.
Please give me your views and advice. I am suspecting a hardware problem.
Note I don't use any apps like NoRefresher or FastMode.
...
Click to expand...
Click to collapse
If the problem remains after you did a "factory restore/reset" then it is most likely hardware related.
My NST had ghosting issue when I was experimenting with FastMode/NoRefresher but it went away after I did factory reset and went with a less exotic kernel hack.

Thank you for your response guys
I think I could zoom in the problem.
I took several screen shots using the screen shot app in one of these threads
Surprisingly those images are perfect.
I think the software is working fine.
So the problem is in the display or the display driver. And I notice that the e ink display has becomer darker even when the Nook is power off.
Is there any way to test the display driver ?

Hmm, that looks strange.
It's certainly not the frame buffer, but you already proved that.
Dumping the frame buffer will give you a nice, clean shot.
It could be that the (plug-in) display itself has a problem.
It could be that the voltages out of the (electronic) driver are screwed up.
It could be that the VCom or the EPD waveforms are screwed up.
The first thing that I'd try would be plugging in another display.
I'd also check the dmesg to see if something happened.
You should see stuff similar to this (editted) version:
Code:
DSPTrace:=== DSP: Load waveforms for t = 25 ===
DSPTrace:=== DSP: EINK parser version 1.07 (MV5) ===
DSPTrace:-I- Mode Version: 0 INIT, 1 DU, 2 GC16, 3 GC16(r), 4 A2, 5 GL16, ...
DSPTrace:-I- WMTA = 000047 (hex)
DSPTrace:-I- Ranges: 0-3-6-9-12-15-18-21-24-27-30-33-38-43-48
DSPTrace:-I- [4] Loaded ID = 5, t = 24 - 27, Subframes = 38

Thank you Renate
I checked the dmesg log and found this part is different
DSPTrace:=== DSP: Load waveforms for t = 29
I am not an expert so I attached the log.
Testing with another display is the most reliable method but that takes time as I have to import one from China.:crying:
So is there anyother way to check the display driver ?
I checked the display cable it is perfect. I am really confused but also VERY curious to figure out this mystery

More pictures of disembled display ( isn't is look strange the ghosting even when no power)

No, your dmesg log looks fine.
It's just that your room is warmer than mine!
It looks pretty low-level, driver voltages or display.
I'm sure somebody who works for the display manufacturer could tell you in a second exactly what it is.

Renate NST said:
No, your dmesg log looks fine.
It's just that your room is warmer than mine!
It looks pretty low-level, driver voltages or display.
I'm sure somebody who works for the display manufacturer could tell you in a second exactly what it is.
Click to expand...
Click to collapse
Thanks Renate
I think the only way to check (or solve) this issue is to plug a new display.
I was reluctant to spend on a display (nearly $25):crying:
But I ordered one from ebay and now waiting for it .
However, do you think the weather has any effect on the eink displays ?
I found a similar thread from mobileread forum. One poster reports a similar issue with kindle and sony readers.
Permanently screen fading over time problem in e-ink readers - MobileRead Forums
Several posters say they are in Asian countries.So I am also in asia (Sri lanka) So I wonder whether there is a connection.

I could tell you to fiddle with the EpdWaveforms and stuff, but that is a bit of black magic.
Your waveforms are apparently happy and loading.
I don't remember if B&N really set the Vcom on their devices before they left the factory.
The good thing with playing with the Vcom is that it's easily editable.
You said that you took your Nook apart.
Did you see the sticker on the back of the Epd connector?
That tells you the common voltage to the panel, around -2 Volts.
(The barcode says the same thing in Code128B, "-2.25".)
That should correlate to the value in /rom/devconf/epdVcom
You can try changing it if it doesn't.
It probably won't make a big effect, this is more fine-tuning for gray scale.
In my case:
Code:
echo -n "-2250" > epdVcom
(The number is in millivolts, with a minus sign.)
I dunno, put your Nook in the fridge and see if other waveforms work better.

The voltage is the same Renate. But I don't think there is a problem with the Rom and other software stuff.Because I did a complete system restore and the problem remains.
What really bug me is whenever I boot it (or reboot) the screen become ok with clear text.But after about 10 min (this time varies) the problem happens.
I think it is difficult to troubleshoot without a new screen.Plus I haven't seen people complaining about faulty motherboards.This makes me hopeful. (correct me if I am wrong on this)
Anyway Thank you Renate for your time and effort I saw you always trying to help many posters here. Keep up the good work!

Update
I got a brand new display from a ebay seller and my Nook is better than a brand new.
The fading issue is in the display.
The new display is whiter and has better contrast than the orginal one.
The best thing is I can use Renate's Temblast Reader without complete Refresh.
I don't know whether the new display has high DPP but I am more than happy.
I think the weather has an effect on Eink displays.
Thank You Everybody for your kind consideration and advice specially Renate. (Renate look forward to see an updated version of your fantastic Reader app with dictionary and bookmark)