Ever overclocked a video card? The dots look like GPU artifacts.
But I don't know what they are for sure.
But I don't know what they are for sure.
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iPhone Screen Checkered Pattern
- Thread starter sjb
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i dunno what to say other than the fact that i wish my loaner phone (5*) is my replacement phone 
definately no checkered dots... and not as much light leakage on the 5* series panel phones i think too (this one has really small 2 light points on top), the 7* series i all handled had much more light leakage and some around buttons, etc...
just gotta hope my replacement is a 5*
definately no checkered dots... and not as much light leakage on the 5* series panel phones i think too (this one has really small 2 light points on top), the 7* series i all handled had much more light leakage and some around buttons, etc...just gotta hope my replacement is a 5*
Have we established why the dots don't show up immediately when booting the phone? Only after a few seconds?
No, but I still think its one of two things:
Either its the touch grid "leaking" into the LCD layer casing the LCD crystals to open or graphics card related. The leak theory sorta makes sense since its a grid - but its not a true grid as the dots increase near test and such.
The more I see picks and the more I read the more I really think its a compression issue. The phone, I think, displays in just 256 colors - or its indexed. Apple did something to make the graphics simple enough for the weak processor to handle and provide the nifty effects.
You can see this ALL over the phone.
For example, when rotating notice the harsh jagged edges of the rotating window. There is no blending.
Also look at some of the home screen icons. The upper part of the notepad and the YouTube icons have classic GIF compression.
The look in you photo library. All the thumbs appear to be GIFs of a sort also. If you have any gradients, you will see it very clearly.
Why does any of this matter?
Well IF the background is black but being displayed as a shade of grey, you get classic GIF artifact injection.
Here are some life sized pics to help explain. The one on the left is JPEG compression. The one on the right is MACOS indexed color - look what we see below!
BUT, why does it do this on startup? My only guess is that the graphics cards switches to a disply mode: 256 colors, 1024 colors, etc.... If anyone has used a Mac form long ago (maybe even today) you know that at startup it displays full default resolution regardless of user settings, but DURING BOOT UP it switches to the user setting. So if the card can do millions of colors, it boots for a while as such but since the user has selected 256 or even black and white, its switches as the graphics drivers are loaded.
Could it be the iPhone does the same?
impressive.
i think this theory make absolute sense.
so, in other words, you are saying that the driver on the 7*** screen is set differently? or do you think it's the graphic's card or something in the LCD that renders things differenty from a 5*** screen?
I think its the hardware but fixable via software. In short, something is different between the two screens. Whether it be the thickness of the polarization films or orientation or it be the type of LCD itself used.
The fix would be a proper "color sync profile" for each which the OS should be able to do. Gamma was mentioned before, etc...
So if my theory is right, its a hardware problem and maybe new "color profiles" could fix it. Fortunately the LCD ID is accessible so the OS can read it and use it to decide on the profile needed.
Again, just a theory.
also does anybody know if there is a setting that can be "hacked" in order to change the resolution? i read somewhere that people were successful in changing the color of the balloons in SMS texts and changing the volume of the system sounds by modding a preference....
there must be a preference for this video stuff somewhere...
there must be a preference for this video stuff somewhere...
The dots DO show up half way through boot ... Refer to my second to last post for a video of it.
No matter what theory you or I gave, alls I know is that my 7 series has dots, and this 5 series loaner I just got does not have them.
No matter what theory you or I gave, alls I know is that my 7 series has dots, and this 5 series loaner I just got does not have them.
Yes I know they show up during boot - that was pointed out long ago, page three or something....
I bet you a cookie the 5 series does though. Take a back photo. Then turn brightness up and view the photo, tilt the phone so you are looking at it as if is laying down. I bet ya seen them, if faint.
I have a 5 series and have them, but they are SOOOOO hard to see it takes the extremes above to see them.
EDIT: I had to turn the lights off in my room, make sure auto-brightness is also off.
anything here that anybody could fiddle with?
http://iphone.fiveforty.net/wiki/index.php/SystemFileAndDirectoryList#System
http://iphone.fiveforty.net/wiki/index.php/SystemFileAndDirectoryList#System
I've decided to live with mine unless Apple announces a recall or it becomes widely accepted that the dots are due to a bad lcd screen.
My phone is perfect otherwise, so I think I would rather deal with the dots.
my phone:
1. Doesn't have a problem connecting to Wifi
2. Has no dead pixels
3. Has sufficient Volume
4. Good signal strength
5. Firm buttons
6. Charges Fully, and visibly so
7. Has close to the expected battery life
I don't notice the pattern in video that I watch on the phone or on my album art, and it doesn't seem to affect the way web sites or my pictures look, they all appear as expected.
My phone is perfect otherwise, so I think I would rather deal with the dots.
my phone:
1. Doesn't have a problem connecting to Wifi
2. Has no dead pixels
3. Has sufficient Volume
4. Good signal strength
5. Firm buttons
6. Charges Fully, and visibly so
7. Has close to the expected battery life
I don't notice the pattern in video that I watch on the phone or on my album art, and it doesn't seem to affect the way web sites or my pictures look, they all appear as expected.
Here's the original image:
Here's how it looks on the 7*** screen:
Here's how to get the same effect in Photoshop:
So it's definitely the way it is rendered. Somebody with a 5 series screen, what do you see?
Here's how it looks on the 7*** screen:
Here's how to get the same effect in Photoshop:
So it's definitely the way it is rendered. Somebody with a 5 series screen, what do you see?
If you read any of the thread you would know that the 5 series has no visible grid unless put to the extreme. Also, in photo shop you will want to also try pattern, not difusion for blend. And see above what I posted, you posted the same thing.
Large threads can get repetative....
Large threads can get repetative....
Did anyone else notice the porno movie sounds in the background of the video they posted?
Just wondering?
Just wondering?