Display and touchscreen interface - Galaxy Note GT-N7000 Q&A, Help & Troubleshooting

Hi!
I'm thinking of building my own smartphone, based on a Cortex-A9 development board (ODROID-X).
I'd like to use the touchscreen module of the Galaxy Note.
Does anyone know, how the hardware is actually connected? By looking over the osource of CM I found out that the touch controller is I²C, i hope the controllor is on the display module, not on the mainboard.
How is the display connected? LVDS? Does anyone have an idea where I could find out?
Any help is appreciated, I'm google-ing for days now

Related

Kaiser Keyboard Backlight

Hi Guys
I've noticed that after playing around with a few of the newer ROMs the keyboard backlight seems to have stopped working on my phone. I've tried changing the setting for the backlight sensor but I don't seem to be having any luck. Has anyone seen this problem with their device or know how to fix it?
Thanks
Trist
hi I was hoping someone else had seen this?

Is anyone working on a fix for the appalling 8.9 touchscreen sensitivity?

I know that there is the build prop "fix" which helps slightly (changing one of the values from the default 150 to 300 - can't remember which but you'll find it with a Google around). However, I was wondering if anyone is working on the touchscreen of the 8.9, or has any ideas on improving response sufficiently so that handwriting is feasible.
It seems that there is some kind of filter that disregards small movements - you can demo this but putting your finger down on the desktop and wiggling it from left to right about 2mm or so. I'd expect to see the screen "wiggle" slightly, part scrolling from left to right. Instead after a few seconds it responds as if you have held your finger down motionless. This is the issue that makes handwriting impossible.
On the 10.1 there is the app and discussion thread TouchScreenTune which fixes all of this. I have tried it on my 8.9 but no joy - but I can't imagine there is much in the way of difference between the two devices, and reckon that the 10.1 fixes could easily be applied to the 8.9 if someone with a bit of knowledge applied themselves (that's not me, unfortunately)
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Moving to General
I think we have to contact the dev of touchscreentune and get him on board of this since both devices is kinda similar.
jeremy89632 said:
I think we have to contact the dev of touchscreentune and get him on board of this since both devices is kinda similar.
Click to expand...
Click to collapse
i sent him a mail. here are the responses:
it seems unlikely:
- I don't have the device
- it uses different touch controller than 10.1
- kernel doesn't support configurable parameters for 8.9
Click to expand...
Click to collapse
I'm speaking about driver provided for controller used in 8.9, it has
no possibility to change configuration. And the firmware of the
controller is a binary blob with no documentation.
Click to expand...
Click to collapse
looks like we are unlucky
being very upset with this problem i started poking around the build.prop
it might be placebo but i feel that when this is added:
Code:
windowsmgr.max_events_per_sec=300
it gets a little more responsive. still not what i want it to be but better than before.
Try Touchscreen booster
It seems to have helped mine.
thanks. seems a little more responsive.
here is the apk if anybody else was wondering:
http://forum.xda-developers.com/showthread.php?t=1261237
My 8.9 LTE is super sensative, probbly the most I have seen on any android tab.
I can just barely graze my screen with rhe back of my fingernail and it even picks that up.
Compared to my roomates ASUS Transformer Prime, wo cant even use his fingernail unless he really jams it down.
iinteresting but im on the tegra version which aparently has completely different hardware
hi everybody
I'd like to try to find some answer to the annoying problem of the touch filtering.
I've been searching around the internet for days, I've also asked the author of TST but with no luck till now.
Is there anybody that knows or can address me to how this problem can be solved? I don't think it's just a hardware problem, but a software one.
I'm also willingly to write to Samsung directly, so wish me good luck.
If I'm not gonna find a way to do this in a couple of weeks, I'm quite sure I'm gonna sell this beautiful black useless brick to an iPad.
MatteAce said:
hi everybody
I'd like to try to find some answer to the annoying problem of the touch filtering.
I've been searching around the internet for days, I've also asked the author of TST but with no luck till now.
Is there anybody that knows or can address me to how this problem can be solved? I don't think it's just a hardware problem, but a software one.
I'm also willingly to write to Samsung directly, so wish me good luck.
If I'm not gonna find a way to do this in a couple of weeks, I'm quite sure I'm gonna sell this beautiful black useless brick to an iPad.
Click to expand...
Click to collapse
Try TouchScreen Booster?
the_hatrix said:
Try TouchScreen Booster?
Click to expand...
Click to collapse
that's been the first thing I did, but the improvements it brings are very light.
Does the tablet really have different hardware between the wifi and the LTE version? (at least regarding the screen digitizer)
Loccy said:
I know that there is the build prop "fix" which helps slightly (changing one of the values from the default 150 to 300 - can't remember which but you'll find it with a Google around). However, I was wondering if anyone is working on the touchscreen of the 8.9, or has any ideas on improving response sufficiently so that handwriting is feasible.
It seems that there is some kind of filter that disregards small movements - you can demo this but putting your finger down on the desktop and wiggling it from left to right about 2mm or so. I'd expect to see the screen "wiggle" slightly, part scrolling from left to right. Instead after a few seconds it responds as if you have held your finger down motionless. This is the issue that makes handwriting impossible.
On the 10.1 there is the app and discussion thread TouchScreenTune which fixes all of this. I have tried it on my 8.9 but no joy - but I can't imagine there is much in the way of difference between the two devices, and reckon that the 10.1 fixes could easily be applied to the 8.9 if someone with a bit of knowledge applied themselves (that's not me, unfortunately)
Click to expand...
Click to collapse
Hmm, is it really a sensitivity issue? If I swipe first then wiggle like you mention, the screen will wiggle slightly. It sounds like there is a threshold to switch from holding the finger down motionless, to scrolling from left to right.
Perhaps a threshold setting (if available) is sufficient to overcome this?
I'm noticing the samething. When I first saw this thread I thought everyone was crazy but after trying to type large amounts of text I've found it incredibly unresponsive in landscape mode (though portrait feels perfect!). I'm eagerly waiting for the official ICS update as in hoping it'll fix some of these issues.
It would be nice if they at least updated us to 3.2.
Kasracer said:
I'm noticing the samething. When I first saw this thread I thought everyone was crazy but after trying to type large amounts of text I've found it incredibly unresponsive in landscape mode (though portrait feels perfect!). I'm eagerly waiting for the official ICS update as in hoping it'll fix some of these issues.
It would be nice if they at least updated us to 3.2.
Click to expand...
Click to collapse
I have Samsung 3.2 OTA update and it really changes nothing.
Btw no answer yet from Samsung, and yes, the problem is just about some sort of accidental touch filter

[Q] What to do with a broken i9000

So I broke the screen on my Galaxy S phone (for the second time) and I think it's not worth the screen replacement.
So I was wandering if anybody know a good DIY project, maybe some kind of HTCP or media center like software.
Because it has a TV out I was thinking of hooking it up to a TV, just haven't found the right software. XBMC is crashing a lot.
Has anyone tried OpenELEC?
Saso5 said:
So I broke the screen on my Galaxy S phone (for the second time) and I think it's not worth the screen replacement.
So I was wandering if anybody know a good DIY project, maybe some kind of HTCP or media center like software.
Because it has a TV out I was thinking of hooking it up to a TV, just haven't found the right software. XBMC is crashing a lot.
Has anyone tried OpenELEC?
Click to expand...
Click to collapse
Try BubbleUPnP..

New Mi5 owner here! Does anybody else experience erratic capacitive button behaviour?

Hey there everyone, I got my Mi5 a couple of weeks ago. I flashed Slim7, but right now I use the latest Lineage OS as my daily driver.
Although, user experience has been great I faced a bug in both ROM which I believe is firmware related, but I don't really have a solution. I am not sure if it happened in stock, but in both custom ROMs that I used, sometimes the capacitive keys (back and recents) would stop working. This happened every 5 minutes or so and it only gets fixed if I lock and unlock the device or if I navigate to somewhere else, hence the reason I believe this is software related.
I did a bit of digging around and some people who were also affected by this concluded that might have to do with certain panels being incompatible the kernel, since Xiaomi uses both LGD and JDI panels for the Mi5.
Has anybody managed to solve this issue? A workaround would to enable on screen navigation but I would prefer not to.
Cheers!

Display controller with HDMI for TF701

Hi there,
my TF701 doesn't start anymore and i'd like to salvage the nice screen as an external display.
Has anyone found a working controller board like this one?:
https://bit.ly/3rbWuHh
Any hint would be much appreciated

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