Right, since this is such a significant impairment (and some users don't seem to experience it), I decided to create a separate thread for it:
If anyone finds out how to properly CALIBRATE the touchscreen on Froyo on Blackstone, please post it here.
So far, the "msmts_calib=0x395.0x3c9.0x79.0x77" results in random keys etc being pressed on the left hand side of the screen.
Thanks
z.
zero0007 said:
Right, since this is such a significant impairment (and some users don't seem to experience it), I decided to create a separate thread for it:
If anyone finds out how to properly CALIBRATE the touchscreen on Froyo on Blackstone, please post it here.
So far, the "msmts_calib=0x395.0x3c9.0x79.0x77" results in random keys etc being pressed on the left hand side of the screen.
Thanks
z.
Click to expand...
Click to collapse
well, there is a bigger problem as the calibration part ...
in froyo it seems to be, that the calibration willb e done automatical and it is not necc. to do anything extra...
but the module/driver for touchscreen is buggy ...
better for testing is the app dotty (can be downloaded from market).
there you'll see, that if you press via finger middle botton, that it jumps on screen touch to left botton - only sometimes ......and with this bug it is almost not possible to use the phone via fingers ...
my boot paramter for calibration is: msmts_calib=0x395.0x3c9.0x79.0x77
but as told above ... the problem is the touchscreen doesn't work correct if using finger ...
if you use the stylus, then it is working, so i think it is a bug, that if the touchscreen driver is getting multiple zones on touching the display, then something strange happen, and then it add an extra point on the left side, which makes using keyboard (SIP) almost impossible.
the only questions would be: does this bug also happenon 2.1 ?
because it it is there working, then we can try to implement the driver from 2.1.
cu camel
Slow down...
Slow down guys...
For 99% of users the calibration works fine, you're in the minority experience tolerance issues.
Touchscreens drift over time, and with heat fluctuations (quite dramatic ones only) etc.
You guys are just unlucky and have devices that have clearly drifted by some amount....
Now, there ARE instructions floating around about how to fix calibration issues, but they aren't on the Blackstone thread, they are elsewhere and I can't recall quite where, but they DO exist.
When it comes to used a finger instead of a stylus, here you just have to live with the differences between a resistive and capacitive touchscreen. Resistive is the one used on Blackstone and most other touchscreens older than 18 months old, whilst never devices tend to have capacitive screens.
What's the difference?
Resistive need physical pressure against the screen, but can be highly accurate in ONE position. You can use these screens with or without a stylus, so can be good for handwriting recognition etc.
Capacitive need NO physical pressure against the screen, but are less accurate.
However they can detect multiple presses at the same time in different parts of the screen.
You can't easy use these screens with a normal stylus and so they aren't ideal for handwriting recognition or fine detail work.
When it comes to using your finger on resistive screen, a lot of accuracy is lost... you're just pressing a large area of the screen and the screen can only deduce ONE point under your finger. This can lead to inaccuracy and wrong buttons being pressed with a UI that has tiny icons and controls.
If your touch calibration is ALSO out, then things get worse still.
Now, before any techies get too techy, there ARE some 'smart' techniques for trying to have multi-touch on resistive displays, but we will no go into that here, and they are generally 'hacks' that don't work in all scenarios.
You guys just need to get your displays recalibrated... that should cure 95% of all your problems, and the remaining 5% are just the stuff we all face... like no multitouch, pinch to zoom etc
It's definitely wrong to give the impressions that XDAndroid releases simply don't work correctly with touch screen. That's very misleading indeed.
i too have issues with touch screen accuracy (both 2.1a and 2.2 v1.0)
80% of the presses are fine, but the other 20% xdandroid would place my finger about 1" to the right, slightly down of when i first contact the screen, and then work out where i've actually pressed a fraction of second later, translating it into a swipe etc.
the touchscreen tool in the debug area proves this fact.
WM is perfect.
weirdly, it seems not to occur at all/noticably less using the stylus. maybe something todo with pressure/contact area?
i do think the OP has a valid issue tbh.
TheBrilliantMistake said:
Slow down guys...
For 99% of users the calibration works fine, you're in the minority experience tolerance issues.
Touchscreens drift over time, and with heat fluctuations (quite dramatic ones only) etc....
Click to expand...
Click to collapse
Thanks for the info.
First, I didn't mean to mislead anyone. I just noticed increased inquiries about this issue and I wasn't aware of the 99% of users having it perfectly working...is this a fact btw?
Besides, I am aware of the different types of displays but obviously, pinch zoom etc are not exactly the main concern, we are just looking to use the phone with our fingers mate!
I agree - I have been using the phone for many months running WM and I had no issue, whatsoever. I am not much of a techie but you are still referring to the software calibration, correct?
Thanks for sharing some valuable info again. I would love to see those instruction on how to do this calibration as without it and along with much of resentment to use stylus, it pretty much makes the phone running Froyo useless )
zero0007 said:
Thanks for the info.
First, I didn't mean to mislead anyone. I just noticed increased inquiries about this issue and I wasn't aware of the 99% of users having it perfectly working...is this a fact btw?
Besides, I am aware of the different types of displays but obviously, pinch zoom etc are not exactly the main concern, we are just looking to use the phone with our fingers mate!
I agree - I have been using the phone for many months running WM and I had no issue, whatsoever. I am not much of a techie but you are still referring to the software calibration, correct?
Thanks for sharing some valuable info again. I would love to see those instruction on how to do this calibration as without it and along with much of resentment to use stylus, it pretty much makes the phone running Froyo useless )
Click to expand...
Click to collapse
But windows mobile typically makes you calibrate your screen when you reflash a ROM, making the calibration specific to your device.
It's also not clear where the calibration info is stored, other than the registry it MAY be stored in E2, or some flash area somewhere. Regardless, it usually forces you to recalibrate (some custom ROMs skip this).
The XDAndroid chaps deemed to 'auto configure' Blackstone calibration for some reason, and this is the most probable reason why folks are having issues.
As for 99%, hummm well, just my releases alone have over 20,000 downloads, and my stuffs one of the lesser used!... yes, some folks have calibration issues, but the majority aren't reporting any... I've maybe seen/heard 20 folks with the issue... that's not too many all in all across all the various releases. AND, some of those guys were also the types of guys saying "this sucks, the battery lasts 2 hours".... as if we didn't all know that ;-)
There was a calibration tool floating around somewhere, plus, those values CAN be edited to suit your device, so there is some home!
Wow, I thought I was one of the only people that had the calibration issue. X_X It's what caused me not to use XDAndroid as much. =(
Anyone have any idea what the calibration tool was? I tried searching calibrate and calibration but no tool was mentioned in the Blackstone droid threads.
PS. I have no idea on how to change the calibration values... =/ When I open up the ts_calibration it shows up as blank. When I open up the startup.txt ("msmts_calib=0x395.0x3c9.0x79.0x77") I do not know exactly what the values affect.
Update:
I tried using the stylus but it currently has the same problem as if I was just using my finger... Does that mean that my touch screen is going out on me? =(
I have a problem too with touch screen calibration.....I guess i'm 1% of users...
im curious as to how maany others have this issue - seems theres a few coming out of the woodwork now
im sure the XDAndroid FAQ or the release thread says the devs are aware of almost all issues so dont bother reporting them (or something to that effect), yet i havent seen anyone mention touchscreen issues upto this thread.
does anyone see a need for a bugtracker for the XDAndroid, or are the forums sufficient? to me, forums seem a bit 'unofficial' with reguard to bugs - maybe an official bug tracker (specific to the android project) would help everyone to see what people are experiencing and numbers involved.
i must say i am only a user, so i dont see or get involved in the development side so maybe this thing already exists in closed circles.
to put it another way, each phone has their own android subforum so it must take the devs alot of time to collate info. bug tracker could be a better way to manage this?
I have the same problem, since 1.6... i touch the screen and is like i touched 1cm outside the screen on the left for 0.001 seconds, so is extremly difficult to type without stylus.
with the stylus is much better but still not good
Ps. i remember the first version of android working on blackstone (1.5 i think) was working good, and the touch screen was fine
veehexx said:
im curious as to how maany others have this issue - seems theres a few coming out of the woodwork now
im sure the XDAndroid FAQ or the release thread says the devs are aware of almost all issues so dont bother reporting them (or something to that effect), yet i havent seen anyone mention touchscreen issues upto this thread.
does anyone see a need for a bugtracker for the XDAndroid, or are the forums sufficient? to me, forums seem a bit 'unofficial' with reguard to bugs - maybe an official bug tracker (specific to the android project) would help everyone to see what people are experiencing and numbers involved.
i must say i am only a user, so i dont see or get involved in the development side so maybe this thing already exists in closed circles.
to put it another way, each phone has their own android subforum so it must take the devs alot of time to collate info. bug tracker could be a better way to manage this?
Click to expand...
Click to collapse
I was actually thinking about the same thing..unsure how to proceed though...
mitikos said:
I have the same problem, since 1.6... i touch the screen and is like i touched 1cm outside the screen on the left for 0.001 seconds, so is extremly difficult to type without stylus.
with the stylus is much better but still not good
Ps. i remember the first version of android working on blackstone (1.5 i think) was working good, and the touch screen was fine
Click to expand...
Click to collapse
I would dig up that version along with calib code in the startup txt file then!
well, i've put the idea forward in the main android subforum here.
it would certainly be useful from a user side perspective to see progress and known issues. fingers crossed
edit: and when did i move to 'Senior member'!!?
I experience similar issues with 2.2, didn't notice it to the same extent in 2.1. When I type on the on screen keyboard, pretty often i get an added button press detected off to the left (about 2 - 3 cm). The problem does occur a lot less when using the stylus instead of the finger.
This is NOT likely to be a calibration problem, as in that case all presses would be off consistently (e.g. always half a centimeter in the wrong direction or something like that).
It looks as if the Touchscreen sends some "incorrect" data that WM filters as too short of a press or whatever and that is affecting some users.
mmm, questionable.
Calibration is as far as I'm concerned done each time, individually with new system (ROM) unless using a saved one from previous attempt install (my Froyo case).
To my understanding of the matter, wrong calibration doesn't necessarily have to mean your display is "shifted" 2cm to the left or so. Simply, it just doesn't work properly i.e. you have the same problem as all other people in this thread.
Maybe reading TheBrilliantMistake's post about different types of screens earlier would help you understand...
after all, we need that calibration tutorial/tip which is allegedly somewhere around here...
StevieBallz said:
I experience similar issues with 2.2, didn't notice it to the same extent in 2.1. When I type on the on screen keyboard, pretty often i get an added button press detected off to the left (about 2 - 3 cm). The problem does occur a lot less when using the stylus instead of the finger.
This is NOT likely to be a calibration problem, as in that case all presses would be off consistently (e.g. always half a centimeter in the wrong direction or something like that).
It looks as if the Touchscreen sends some "incorrect" data that WM filters as too short of a press or whatever and that is affecting some users.
Click to expand...
Click to collapse
I have the same problem, exatly the same.
Cant we set android to ignore the first 0.1seconds of a pression on the screen?
StevieBallz said:
I experience similar issues with 2.2, didn't notice it to the same extent in 2.1. When I type on the on screen keyboard, pretty often i get an added button press detected off to the left (about 2 - 3 cm). The problem does occur a lot less when using the stylus instead of the finger.
This is NOT likely to be a calibration problem, as in that case all presses would be off consistently (e.g. always half a centimeter in the wrong direction or something like that).
It looks as if the Touchscreen sends some "incorrect" data that WM filters as too short of a press or whatever and that is affecting some users.
Click to expand...
Click to collapse
ah - finally
now you got it - this is exact the problem what i want to tell everybody ..., and i'm sure, that this happen, because the touch screen driver doesn't calculate correct the position when a bigger range (like touch from a finger) is touched. This doesn't happen, when stylus is used ...
to remove the first 0,1 sec or something ... don't think, that this would help
...on the other hand ... which module is responsible for touch screen ?
Just for a start the background of calibration (it's on security risks with touchscreen based voting machines but the principle is obviously the same) - http://vote.nist.gov/threats/papers/touchscreencalib.pdf
I believe TheBrilliantMistake in this case thought we'd sometimes hit adjacent buttons. But fact is, it always does trigger to the left and in addition to the correct press being detected, so well there's something else to this one.
Guess it will be ironed out eventually as it's a lot less common in 2.1. But it's annoying to the point of making texting a real pain in 2.2.
StevieBallz said:
Just for a start the background of calibration (it's on security risks with touchscreen based voting machines but the principle is obviously the same) - http://vote.nist.gov/threats/papers/touchscreencalib.pdf
I believe TheBrilliantMistake in this case thought we'd sometimes hit adjacent buttons. But fact is, it always does trigger to the left and in addition to the correct press being detected, so well there's something else to this one.
Guess it will be ironed out eventually as it's a lot less common in 2.1. But it's annoying to the point of making texting a real pain in 2.2.
Click to expand...
Click to collapse
does it means, that under 2.1 there is no such kind of "touchscreen bug with finger" ?, because then we can take a look to the modules - maybe we can compare the difference to 2.1 ...
I didn't experience it there but I have to admit that I didn't use 2.1 for too long. Maybe it's a speed issue with 2.1 being more optimized and polished then 2.2 which leads to it occuring on a less frequent basis.
Due to the known problems with powersafe modes not being supported yet in XDAndroid I'm currently mostly running WM6.5 but I'm looking forward to the advancements with XDAndroid, great project.
Add 2 more devices to the 1%.
I'm experience the same issue. My friend which has a newer Blackstone than me let me put my XDAndroid mSD card into his phone and there goes the same issue.
Tested with some drawing applications, here is what i experienced:
Just like others stated before most of the times when the bug occurs I get a line starting like 2 cm to the left of my finger (and a little lower) and ending under my finger. It's like I've been dragging my finger across the screen for 2 cm. Sometimes it goes as far as the left side of the screen.
Since this is inconsistent I doubt it's a calibration issue. I must assume it's the driver. But I might be wrong.
Anyway I believe a lot more people than 1% are experiencing the issue but they aren't posting about it since they believe it's a known issue.
Related
Hi guys,
Please download and watch the 2 videos i made and try to reproduce it if you can.
On the keyboard i'm """literally barelly/not touching"""" the screen.
On notes, drawing that slowly i get that. Already tested on another unit and had the same problem...just wanted to see if i'm not alone here..
This is unpleasant... If you already noticed the problem please do coment if you fix it or...
I did calibrate the screen, messed with reg settings but nothing changed.
I'm just trying to see if this is software related or hardware related.
Thank you !!
http://rapidshare.com/files/307595308/touch_screen.zip
Very strage...
about the second video, what happens if you move the finger rapidly on the left portion of the screen?... are the results identical to the results of the right portion (as you did in the beginning of this video)?...
if you encountered this with another device, it's probably reparable via software upgrade... I hope...
unfortunatly it does the same thing be it left or right
on both devices.
It's an alignment problem. Try realigning the screen, touching as lightly as possible on the crosses and not moving your finger until the cross moves. No worries. Mine did the same stock and never after I realigned.
Drawing
I was resigned to living without the ability to draw on my HD2 but I just tried drawing in notes and was pleasantly surprised that it works quite well, even with my fat fingers.
solved?
was this solved by the realignment?
no, it helps a bit, but still not 100%. Whatever I do, I can always make the keyboard go crazy. The touchscreen needs a better driver.
Hi.
I have a problem with my hd2's screen.
Often i press the wrong buttons when typing and so on, And ive come to the conclusion that its something wrong with the screen.
To test this ive gone to the file explorer and then grab the slider to scroll down and hold my finger perfectly still.
And even tho im 100% still it stills jumps up and down like crazy.
I can imagne that its this that makes me type the letter beside the one im trying to hit.
Anyone else has this problem or did i get a faulty phone?
Regards, Joakim
A few other people have reported "jittery" screens. Have you applied any of the decreased sensitivity hacks? I believe there's 1 on BsB tweaks, which is nice and easy.
hargibi said:
Hi.
I have a problem with my hd2's screen.
Often i press the wrong buttons when typing and so on, And ive come to the conclusion that its something wrong with the screen.
To test this ive gone to the file explorer and then grab the slider to scroll down and hold my finger perfectly still.
And even tho im 100% still it stills jumps up and down like crazy.
I can imagne that its this that makes me type the letter beside the one im trying to hit.
Anyone else has this problem or did i get a faulty phone?
Regards, Joakim
Click to expand...
Click to collapse
Have you tried re-aligning the screen and secondly reduce the sensitivity of the screen using BsB tweaks? this might solve your problems
the screen is very erratic: often when pressing backspace seemingly in the right spot the screen will jitter and incorrectly register different parts of the screen. often during texts the cursor will jump to the beginning of the text for no good reason. i find that this problem is augmented in cold conditions or when my fingers are not 100% dry.
I am no authority on screen technology so can only theorize but i suspect the problem to be linked to the fact that Windows Mobile does not natively support capacitive touchscreens (the driver for our HD2s was developed by HTC ). Other mobile OS such as iPhone OS and Android do not suffer any problems like this. we can also rule out a hardware fault here as i own/ed three different HD2s, all of which suffer from this jittering. The next update to Windows Mobile purportedly includes NATIVE capacitive support, which would - i suspect - have undergone more rigorous sensitivity and usability testing and will therefore lead to a better experience on the whole. i suspect that we won't get a truly excellent experience with Windows Mobile until 7 is released. The Windows Mobile we use now is very ancient under the technobotox, which probably explains the frequent freezes, glitches and slowdowns our HD2s suffer on a daily basis despite the awesome specifications (and perhaps why - up to now, Microsoft have put so little effort into the intentionally generic and rather stale Marketplace).
I applyed the screen sensitivity cab and now it seems much better. ill report back tomorrow when ive used it a bit
help!!!!
i installed bsb tweaks 1.6 and aligned the screen,my hd2 still jitter
Hi, Just wonder if you still have the screen problem (register the wrong place when click) after the upgrade.
No. You should check out the humongous thread on google support forums. Googe have now abandned even giving updates on this serious problem.
http://www.google.com/support/forum...8e&hl=en&fid=04134c63c784258e00047fdfe09ae547
p.s. no fix in ere36b either (as im running that now and still experience this problem at random)
I don't understand this issue, I just don't see it on mine at all, no matter what ROM I install ... there has to be something more to this than a simple fault across all handsets ... either select faulty ones or some other factor. Mine just works 100% as expected at all times.
That said I have had no 3G issues either, no matter what radio version I use. Perhaps I am lucky ?
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most annoying when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw two parallel lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Only way that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. From the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
duncan888 said:
I think its because people are touching the edge of the screen while pressing with the other causing it to register incorrectly
Click to expand...
Click to collapse
trust me its not.
i have had this twice and has nothing to do with that.
i dont see it as a huge problem but a lot of people are getting this on a daily basis..
vas41 said:
That is not it, there are plenty of videos that show the touchsreen misfiring while just laying on the table. Also, the way I hold my phone I am never touching the glass surface other than with the one finger doing the touching.
With regards to some people not seeing it, this issue is very random. I can go for days without noticing it and then out of the blue it would come back, most anyin when it happens while typing something.
There is another somewhat related issue with the sensor on the n1. If you download an app called multi touch paint and try to draw to lines simultaneously from say top left corner down to bottom right you will see that the lines are not straight at all and full of zigzags. Onlyway that this sensor recognizes multiple lines properly is if you draw perfectly vertical or horizontal lines.
There is also a discussion on developer groups where game developers are pointing out this very problem of multi toch totally being screwed up where it switches axis causing your touch to register in completely the wrong place. Fromn the comments of the android engineer it makes it seem that the sensor hardware is just like that, cheap and low quality.
Link to discussion: http://groups.google.com/group/andr...read/thread/d0aa3eea8fd9a2b8/9a8ea81133866460
Click to expand...
Click to collapse
I know, I have seen all these videos and attempted to re-create many times to test I have never seen this issue once.
Don't get me wrong I can understand it being a mare of you are having it, but I just dont ever see it.
after trolling the Google thread, it seems to me there are several scenarios everyone is lumping into "screen issues" and it's going to be hard to pin it down to one source
Mine happens (touch registers on the wrong part of the screen) when I am using certain apps (Ringdroid, Browser mostly) - a couple of things clears it up ; press the sleep button, kill all tasks if you have an app for it, or change to landscape mode. For other people it's the soft keys and/or much worse. Since mine clears up with a specific action, I tend to think it is software related.
With mine it used randomly to happen but only in the Launcher (never again since 36B). I couldn't point anywhere but if I selected any app with the trackball and opend ist everything worked fine again, also the keyboard on the launcher worked well. For me it seems that it has something to do with the launcher.
My keyboard misfires badly intermittenty. I know it's an old issue but I've never found a solution. The delete key inputs Smileys, the l strikes the spacebar...etc.
It does it with better keyboard also. I'm trying Smart keyboardPro now and it's good so far.
My question is, is this a deep software issue or a uncorrectable hardware issue?
thanks
toddsk said:
My keyboard misfires badly intermittenty. I know it's an old issue but I've never found a solution. The delete key inputs Smileys, the l strikes the spacebar...etc.
It does it with better keyboard also. I'm trying Smart keyboardPro now and it's good so far.
My question is, is this a deep software issue or a uncorrectable hardware issue?
thanks
Click to expand...
Click to collapse
Turn the screen on and off when this happens and it will be fixxed for a while until the stress builds up again.
I always turn the phone completely off and the keybord stops with the problem
Sent from my Nexus One using XDA App
Yeah, as Chopes said, turning the screen off and on works fine for me. Gets really annoying sometimes, I use Swype.
this is a constant problem for me and really the only reason I am considering the Nexus S despite it being a hideously ugly plastic turd.
currently though, the trackball is simply too important for me to lose. here's hoping gingerbread makes it less necessary by making it easier to interact with text via touch
The latest (Korean) radio version supposedly fixes that. I only had the issue a couple times, so I can't confirm.
Karolis said:
The latest (Korean) radio version supposedly fixes that. I only had the issue a couple times, so I can't confirm.
Click to expand...
Click to collapse
For me this didn't fix the problems mentioned at all.
While surfing the web I sometimes face them about every 30 minutes and always have to lock/unlock my N1 then to make it working properly again, although I have the newest OTA-update and (Korean) radio fw installed.
Strangely it seems as if these problems would occur less often when holding the screen clean...Don't know if that makes any sense!?
I have an issue where rapidly tapping the delete key selects text... not really sure why the heck that happens.
The only clue I can offer is that it only happens to me when I use one of several wall wart chargers that I have. One of the chargers seems to cause the phone to feel warmer than the others, and once it warms up, the KB goes wild. Removing the battery solves the problem and once plugged back in it doesn't recur till the following night when I plug it back into that particular charger.
Not a big samsung fan.
Is it a dead spot on your phone
I feel for you, this is a well know issue with the low-quality touch sensor panel used on the N1. The best evidence for this is seen with any application that is very touch dependent (like virtual keyboards). If you download any of the multi-touch testing apps in the Market and compare the results with any newer phone, the results are pretty sad. The Galaxy S for example can register 5 individual points at once, the G2/MyTouch 4G can see 4.
The charging/heating/screen going crazy problem is also common place - I run into it at least once a day.
I still love my Nexus, but this kind of craziness makes me think twice about HTC's decisions on parts.
Yes this definitely a major defect for a lot of n1's. I've done numerous swaps behind this issue, and every single one of them has suffered from this defect. As far as features are concerned, the n1 is the best I've had, but because HTC chose not to address the issue, I've decided not to purchase anything manufactured by HTC. Maybe if i only paid a couple hundred for this phone, i wouldnt be as disgruntled, but $600.00 is a lot for a phone with a defective touch panel. I'm so glad Samsung and others are providing better options out there. HTC will not get my money anymore.
Hey guys I always knew that multitouch on HD2 isn't pefect at all, but now I noticed a peculiar behavior which I was not aware (tnx to ICS)...
enabling a function in developer settings to show pointers position I discovered that multitouch is working in a wrong way.
When you put the second finger over the screen it is recognized correctly but when you move it close to the same axis of the first one (both vertical and horizontal axis), it automatically get aligned on the same abscissa or ordinate (depends which axis was closer) even if the fingers are not aligned.
This is frustrating when I use some apps that take advantage of multitouch, such as games or emulators, because while I'm pressing a key on the screen and I need to press another one on the opposite side, but not perfectly aligned, I get a wrong recognition and often I press another key or a blank space.
I hope I was clear, but to understand better the problem you should activate that function in developer settings and try yourself.
Please give me a hope to think it is a solvable problem... maybe with a better driver :fingers-crossed:
That's just the screen I'm afraid. I've had the same issue with every ROM I've tried, and there's nothing you can do to solve it. At the very least, it's nice for me to hear some confirmation that I'm not the only one who experiences this.
Nigeldg said:
That's just the screen I'm afraid. I've had the same issue with every ROM I've tried, and there's nothing you can do to solve it. At the very least, it's nice for me to hear some confirmation that I'm not the only one who experiences this.
Click to expand...
Click to collapse
I read around the forum that HD2 has hardware capabilities, so I think we need to get better input driver
The hardware doesn't support more than 2 points, and it does this rather poorly too. It's not so bad when using things like pinch to zoom or using two fingers to turn the map in Google Maps but when gaming it can be a bit of a pain. There's no driver that can increase the number of points the HW can support (if there was one then surely it would already have been implemented in Android) so afaik there's genuinely nothing that can be done about this. If there is, I'm sure someone will correct me soon.
It's a known issue and we can do nothing about it because of not so good touchscreen. Hardware problem, you know. It's present in every OS and in every ROM. For gaming I'd recommend getting a PS3 controller or using OTG cable and some other gamepads, like the X360 one.
Spaqin said:
It's a known issue and we can do nothing about it because of not so good touchscreen. Hardware problem, you know. It's present in every OS and in every ROM. For gaming I'd recommend getting a PS3 controller or using OTG cable and some other gamepads, like the X360 one.
Click to expand...
Click to collapse
Maybe you're right, an external controller is the best choice, but I don't want to bring with me other accessory when I'm outside... for the wrong recognition I think it's just driver fault because the problem is software side. When I use one finger is really precise the issue is when I try to use two fingers, because the driver is written wrong and read a fake position
Maybe this makes things a bit clearer. http://www.tactyl.com/fr/telecharger/39-drivers
Back in the days, there weren't that many "multitouch" apps out there for android.
If you look at the nexus one, it's even worse. http://www.youtube.com/watch?v=5puAvPqXpuc
From reading one of the booklets that came with the HD2 it all comes down to single-touch and a pinch-to-zoom gesture which both work most of the time.
Some people who developed emulators at that time, tried to avoid this "autoalignment" by putting the pads in opposite corners.
While still many people don't know that pressing on the edge of the screen, of the HD2, with at least one finger can cause
a swap in the y-axis once the second input is on the screen. (almost like in the nexus one video)
In very good light you can see this "edge-area", it's about ~4mm thick on each edge.
You can always download MVT and test it yourself. https://play.google.com/store/apps/details?id=com.batterypoweredgames.mtvistest&hl=en
Some time ago tatsumaki made a decent virtual gamepad for fpse which got rid of the alignment by incorporating it in the way he/she arranged the buttons and button mask.
No one is going to fix this by a new driver,
End of story.