Yes but not all boards are affected. That's the puzzle. Is that lcd really that crappy that it's a lucky draw to get a good one? If it is the lcd, why not change supplier and end this once and for all?
Regards
Tony
Sent from my keyboard through my phone or something like that.
Good points...
It takes a while to switch suppliers though. Especially if they use a custom screen "tail" (don't if that's true or not though). And if there was a screen problem with the previous supplier I would think that they will want to spend a big chunk of time evaluating the new screens before using them.
But, the problem can still definitely still be a different issue than bad screens. If anyone that has the latest board still sees the glitch then I feel other causes are still possible. Even if these new boards use the same model screen. A design flaw in the screen that carries across multiple manufacturing batches would not be common. Especially for an established product.
But, these are just my feelings based on my experiences with similar components.
There is a long list of potential weak points in a board design, firmware timing, etc., that can pop up in only certain very specific circumstances. It makes it terribly difficult to track down the cause as the manufacturer can't replicate all the operating environments these boards see. Their testing should catch most of them though. And along with good board design and defensive coding with the firmware they should be able to prevent problems with any unforeseen circumstances. But there are a lot of compromises made in these board due to the incredible cost pressures and desire to speed up the development cycle. And there's just no room to put in a "bulletproof" board even if they did develop one.
I'm not saying that it's not a bad screen issue. Just that, for me, the jury is still out as to what's causing the trouble. I've seen too many designs zapped in the wierdest, seemingly random, ways by any number of intereference or power source issues.
