Temporary Screen Fix
I saw this on macrumors http://forums.macrumors.com/showthread.php?t=357320
This guy says its a problem with the video driver and hes simulated a fix by adjusting the gamma of pictures and videos. He thinks it can be fixed by a firmware update. I'm not convinced though.
[284 byte] By [
dmiZe] at [2007-11-11 20:48:46]
# 1 Re: Temporary Screen Fix
Interesting theory. It would be nice if there was a software fix. We'll have to wait and see though...
# 2 Re: Temporary Screen Fix
If I understand correctly, they're wrong.
Photoshop has nothing to do with this. I've been photoshopping for years, and all it is is an image editing program. I can take a bad screenshot of an iPod touch screen and make it look like it has no problems. But that's Photoshop. What the hell does that have to do with their claim? They think simply because they can Photoshop the images perfect, like any person can, that the problem is a video driver software issue? WTF
They don't know what they're talking about.
I think what they mean is that the contrast levels to the video can be adjusted in a firmware update to fix how video is played.
But if it were a software issue, software doesn't explain as to why some iPod's just look horrible at an angle, some look perfect at every angle, and some look horrible and negative at all viewing angles.
The iPod touch's software sometimes identifies itself as an iPhone. It's probably shipped with the same "video drivers" as the iPhone. Why doesn't it display it as such?
Also, just because the contrast levels can be changed in a future firmware doesn't rule out that it's a hardware problem.
# 3 Re: Temporary Screen Fix
Good points about Photoshop. I think the idea is that the gamma is set wrong, but I tend to agree that the problem appears to be more complex than that.
# 4 Re: Temporary Screen Fix
It does seem logical. But I am more convinced with the "TV Screen Expert" and his theories that the back light is reflecting against the glass, then some guy named Bob who can photoshop pictures and make them pretty!
haha
XBudd at 2007-11-15 12:51:51 >
# 5 Re: Temporary Screen Fix
Just because the video can be displayed perfectly with the right adjusted settings, makes this a software problem?
Not necessarily. Especially since all the iPod touchs' are shipped with the same software, apparently.
But yet all the screen qualities are different.
# 6 Re: Temporary Screen Fix
My semi-educated guess is, the prob has to do with the display/glass and the signals sent to the display.
The photoshop trick is a way to "correct" the imperfect interaction of the items above, like wearing glasses, but of course the real fix is to do surgery on the eyes.
Why some work and some don't and only at certain angles? BECAUSE OF PARAGRAPH #1. All things man-made have "deviations." In a well-made product the deviations are precisely known and the software to drive the hardware stay within the deviations so nothing gets out of wack... Me guess is, the hardware vendor could not manufacture within the deviations they told Apple they could. Or at the very last minute, the hardware vendor put in a slightly modified glass (for whatever reason) and didn't tell Apple, and/or didn't ocurr to them that would have consequences to how "hard" the LCD can be driven.
# 7 Re: Temporary Screen Fix
I personally think that many are too quick to jump to the "it's a hardware problem" ship...
I will admit, the hardware problem is clearly a more logical choice, but please, don't automatically consider software out of the picture just because "all ipod touch's have the same software"...
If that argument can be used, then please explain why some iPods (relative to the whole bunch) have bugs, while others don't- when using the same firmware. Software can be buggy from unit to unit as well as hardware.
Additionally, too many people are lingering at the few paragraphs posted by a supposed LCD engineer.
If it happens to be a software issue, then most of this ruckus is much ado about nothing.
