Originally Posted by danvee
I don't think that a dead spot that's repeatable is software, but, what the heck. They're pushing out an update right now that's supposed to fix the touch issue, so you'll know soon enough...
It usually isn't a true dead spot in the sense that there is no voltage drop or current going through that area. It is usually that for that area they need to use a different threshold to trigger detection. I saw in the firmware changes they can fine tune even edge responses, so I assume they can have some sort of matrix where the thresholds are specified for different parts of the screen. The problem might arise that if they make some area more sensitive, displays that are already more sensitive in that area might start having undesirable behavior.
I have seen areas where the screen won't register taps but will register swipes. I've also seen areas that won't register taps or swipes, but when you hold the unit it starts to register them, so clearly the wiring is there for the input to be registered, but the thresholds to determine noise vs input may need to be tuned.
It does seem there is a lot of variance on these touchscreens which appears to be making it hard for them to come up with one firmware that fixes everything.
They may need to add some user tunable functionality to account for the different variances.
Disclaimer: No touchscreens
were harmed nor injured during the creation of this post. GPS
units were all treated ethically and humanely.
Signed: People against misbehaving Nexus 7 2013s