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I've seen here that MultiTouch was not working properly on NexusOne.
The guy has developped a little app ("Multitouch Visible Test", available on the market) which clearly shows where is the problem (have a look on this video)
The bad news here are that Hero provides exactly the same behavior as N1
Interesting, my hero is acting the same as the nexus (htc messed up?).
I don't think its that big a problem really, unless you get caught playing one of the games that are meant to be messed up by it as pinch zoom which is all most people use it for works perfect.
I experienced the same issue on my Hero. Anyone has an explanation for this? Hopefully its a software pproblem, not a hardware issue..
Has anyone noticed this? Wherever there's something to scroll, web pages, menus etc., the motion is sort of stuttering as long as you keep your finger on the screen. When you release your finger and "throw" the page, it goes smooth. This makes me think that it's not a graphic performance issue, but it's more like if the resolution of the capacitive touch screen was lower than the actual display. I hope I'm wrong and it's software related...
Software related, doesn't always do this.
Edit-
On second thought I am not sure, sometimes it does this really badly and other times it is completely smooth. If we didn't have full resolution touch you would notice it on a multi touch test app.
Sent from my GT-I9000 using XDA App
I think I have found the cause.
Cpu scaling!
Lock setcpu to 1 ghz and it is much smoother.
What is happening is the cpu speed keeps throttling and jumping back to full speed causing problems
Sent from my GT-I9000 using XDA App
Actually...still unsure...ideas anyone?
Sent from my GT-I9000 using XDA App
"Problems" with CPU speed jumping up and down? Those are not problems but a design decision (jury is still out on whether the implementation is done right) to save energy.
Of course you can crank everything up to the max and never put peripherals or the CPU to sleep, but please don't start complaining when your battery runs flat before the day is done.
They set the ramp down cpu speed timer far too short. This can be modded in a kernel anyway.
Using a multi touch test we have at minimum 600x300 touch resolution, way more then enough to have lag free scrolling.
There's an acer android phone out with only about 32x 24 touch resolution. They manage
Sent from my GT-I9000 using XDA App
I don't think it's related. I'm experiencing this even with the cpu locked in performance mode. On the other hand, using a multitouch test app, I was able to move a pointer pixel by pixel at what seemed to be the screen's full resolution, so touch res is not the cause.
It's quite annoying cause even if you want to launch a fast scroll of, say, your contact list, you get that initial ugly small stutter... when browsing the internet this ruins the experience even more, since you are likely to keep your fingertip on the screen more.
Dunno about you guys but uninstalling Gesture Search by Google fixed it for me.
Never had that on my phone...
Bump... am I the only one bothered by this?
Am I?...
Rizlo said:
Am I?...
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Could be, I had a HTC HD2 and it suffered from that problem alot. numerous videos have been posted on youtube because of it as well.
One possible way of minimizing the problem is to electrically discharge your screen, by putting an electric conductor, such as metal on it to remove and negative/postive ions still hanging around. Read that up somewhere and it somewhat helped my HD2.
Personally i have only experienced once on my Sgs and have not been able to replicate it since.
If you have big fingers that could also be a problem as the touch sensor can't decide on where to locate your finger...
Thank you for your answer! The electrical conductor you mentioned should go somewhere to discharge though... I can't walk around with a ground wire hanging from my phone all the time Plus, I really believe it's software. I know it always goes there but... iPhones have similar technology but they always scroll smooth. maybe it's interpolation we're missing here.
Btw I have particularly small hands!
Discharging it only has to be done only when the problem seems to be worsening. just try not to place your entire thumb on it but rather use the tips of yours fingers, that way it doesnt jerk.
I have to say this problem is pretty consistent, hence not worsening (or improving) whatsoever in any circumstances. It's just not fluid, ah my Touch HD used to be, but that was because of poor GPU (driver); we know that can't possibly be the case here, and as a matter of fact, regardless of load, stuff in the background etc, it's there all the time.
But as soon as you release the fingertip, the "inertial" part of the scrolling just goes as smooth as possible.
So I'd dismiss the electrostatic explanation, it seems like it was a non-interpolated low touch resolution... except that it's not...
Hi Folks, I have noticed the same problem running eclair 2.1 with Ryan's one click lag fix applied (the lag fix did speed it up quite a bit too!). It seems to do it after coming out of 'sleep' mode i.e when I wake it up from blank 'screen saver'. After a few scrolls or taps it starts to smoothen out a bit, but still not as I would like it to be.... Just my observations and sorry I can't offer up any Solutions... Any word if 2.2 update will make things better? Also, does anyone know when the update will hit Australia?
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
xan said:
Welcome to android world, iphone users.
The world where not everything is super-smooth.
Actually it might be related to smoothing of touch input. Btw my scrolling is quite ok, but I come from Sybian world, world of lag.
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'smoothing of touch input'? could you please expand on this?
BTW - I Never owned an iFone, and don't really go for it's comunistic ways... (although some people take comfort in it! )
Hm, touchscreen sends raw data to driver (noisy, with peaks) to driver. Driver cleans and interprets them.. (unless its done in TS firmware)
I think that more cleaning and smoothing at this stage would result in smother scrolling, but not-so-precise tracking (when drawing, etc).
I'm just speculating here, because I have no real knowledge about this.
OK... Although it seems like there is a delay in reloading to short term memory when coming out of hibernation? Would this sound like a place to start looking? if so, anyone have any ideas on how to manipulate this function?
Now that Android can be installed from NAND, I had assumed that the problem with the screen only displaying 65k colors would be fixed. It still isn't, is there a known way to fix it or any progress being made to fix it? At the very least, is it known what the issue is? I thought it was a problem with WM utilizing only 65k of the screen and that carried over to android when it was run over WM, but now that WM is eliminated that's obviously not it. Anyone know?
Sent from my HTC HD2 using XDA App
ShotSkydiver said:
Now that Android can be installed from NAND, I had assumed that the problem with the screen only displaying 65k colors would be fixed. It still isn't, is there a known way to fix it or any progress being made to fix it? At the very least, is it known what the issue is? I thought it was a problem with WM utilizing only 65k of the screen and that carried over to android when it was run over WM, but now that WM is eliminated that's obviously not it. Anyone know?
Sent from my HTC HD2 using XDA App
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someone correct me if am wrong but is the screen hardware it self only capable of displaying 65K.
jagger2k said:
someone correct me if am wrong but is the screen hardware it self only capable of displaying 65K.
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There was a discussion about this back in 2010: http://forum.xda-developers.com/showthread.php?t=807307
Some say its 262K. Others 265K or 16M. It's all very vague.
According to Microsoft its 262k
http://www.microsoft.com/windowsphone/en-us/buy/6/phones.aspx#detail=1366
I hope someone sheds some light on this, gradients look awful on my screen.
shadiku said:
I hope someone sheds some light on this, gradients look awful on my screen.
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Seriously, it's the only thing holding me back from using this phone full-time. You can see a great example of it in the widgets.
I agree, widgets look terrible, specifically news and weather widgets (genie.apk), power control, etc (anything with the black gradient background).
However, they only look bad on some launchers (on launcher pro, for example, with high quality scrolling turned on, widgets look exactly how they are meant to look - somehow launcher pro manages to 'smooth' the gradient).
I think this should be made a priority as the banding is very visible in many apps, and especially when watching videos on the device. It is very noticeable in the new gingerbread ROMs, which make use of more subtle gradients (take the notifications bar, the phone application for example) - fixing this issue would bring android on the HD2 up to a whole new level!
I'm going to do some digging and see what I can find...
i dont think we can improve the screen to much higher than what is meant to be.if you have a normal plasma tv.you cant watch 3d movies from it,because it was not intended for 3d.same thing with the hd2 screen.
justwonder said:
According to Microsoft its 262k
http://www.microsoft.com/windowsphone/en-us/buy/6/phones.aspx#detail=1366
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But isnt that always MS's way of looking at things, being conservative opposed to using the capabilities? MS has never used anything to its fullest capacity, they are always on the reserved side so to them less means better compatibility and less issues. I wouldnt go based on MS's articles or opinions, I think the best to answer the screen capability would be HTC - the maker.
But thats just my opinion.
For me, some sense builds look more colorful than others do.
is it possible that these builds make use of the displays capability?
Cause when I use Froyo everything seems to be paler and less colorful.
And its not just the wallpaper..
This is a concern of mine aswell, I hope it really is not a hardware limitation
Sent from my HTC HD2 using XDA App
MS said that LEO suqqort 262k.
Sent from my HTC HD2 using XDA App
I thought that limitation was just because that's all WM6.5 could handle. I'd be surprised if the screen couldn't handle 16.7million colours. It's just a standard TFT device after all.
Perhaps it comes down to drivers?
jonboyuk said:
Perhaps it comes down to drivers?
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Maybe it was regulated somewhere in IPL or SPL? Because we just use IPL, SPL and radio to boot android...
Hi everybody I've just installed wp7 and actually everything is running quite well but I'm not sure if it is normal when the explorer lags sometimes when scrolling slowly ,as some people have stated wp7 to be just perfectly smooth. Well maybe people coming from android or WM6 think so but compared to iPhone 4 it is still quite a bit laggy especially the browser as I said before. Now can anyone with iPhone experience tell me if this slight lags are normal or is there something wrong with my sd card (there are no lags when scrolling fast or zoomed out only when zoomed in and slowly scrolling)? I know Im pathetic
i dont have anything on my hd2 which resembles lag, however the touch screen pinch lag is a driver issue, we are not ment to have wp7 on our hd2s, its likely something you will have to live with if you wish to keep using the HD2
So earlier this day i went to a shop and found the HTC 8X there, i couldnt resist playing with it, so i tested everything possible on it, but found not major, but rather irritating performance hickups. They especialy happened when I started doing some fast scrolling in the home screen and found that the faster i was scrolling the bigger the lag was, especialy when moving to the app drawer, and the bouncy efect when overscrolling. Also when i scrolled really slow in the messages for example, the text didnt go up and down fluid but rather stutered a little, is this only happening on HTC 8X or all WP8 devices? Thank you for answering.
Definitely NOT happening on my Lumia 920. This thing is a freakin rocket!
Sent from my RM-820_nam_att_100 using Board Express
Definitely not happening on my AT&T 8X. No such issues at all.
mikroland said:
Definitely NOT happening on my Lumia 920. This thing is a freakin rocket!
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+1
Nope my 810 is good to go
Sent from my RM-878_nam_usa_100 using XDA Windows Phone 7 App
My Lumia 920 is really smooth. The only time it hiccups is on the lockscreen if I have an app running in the background (MetroRadio tends to do this). I think it's because MetroRadio is a WP7 app and hasn't been updated for WP8 yet.
My htc .8x has no lag issues!
Sent from my Desire Z using xda app-developers app
[email protected] said:
So earlier this day i went to a shop and found the HTC 8X there, i couldnt resist playing with it, so i tested everything possible on it, but found not major, but rather irritating performance hickups. They especialy happened when I started doing some fast scrolling in the home screen and found that the faster i was scrolling the bigger the lag was, especialy when moving to the app drawer, and the bouncy efect when overscrolling. Also when i scrolled really slow in the messages for example, the text didnt go up and down fluid but rather stutered a little, is this only happening on HTC 8X or all WP8 devices? Thank you for answering.
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Click to collapse
App drawer, huh? I think you may have picked up a one X.
^ lol, so true.
Sent from my iPhone using Tapatalk
I think you just had a bad model. My HTC 8x (black) is smooth as butter. Only thing I noticed with Beats Audio is that it "lagged" a bit the first time on playback after I chucked the device full of new apps and music, but that was only for a day. I think it was busy caching or something - but no lag or hiccups anywere now.
Hey,
I think I noticed a same lag issue, maybe the thread starter also had a WP before because I think WP 7.x did some scrolling smoother ... For me it only happens when I scroll with my finger put down. There seems to be way too much going on cpu wise when I scroll up and down. As soon as I lift my finger the Lumia 920 turns into a rocket again.
I tried to do a comparison video with my own 920 and my old 800 (which I gave to my girlfriend ^^). The video cannot quite show what the issue is but it is hard to describe it anyways. I still think the thread starter is right and this issue maybe should be reported to MSFT.
Scrolling on Lumia 800:
Scrolling on Lumia 920:
(Just ignore the sound)
bye, Smirny
ok I finally figured out how to reproduce the issue clearly. It seems that scrolling within legacy WP7 apps is not affected by this. So you can try this out for yourself.
1. Go to your homescreen and scroll around a bit while leaving your finger ON the screen.
2. Go to any legacy app and do the same scrolling behaviour. There is a difference between the smoothness of the two!
I recommend for example "Photocasa Galery" because it tries to immitate the homescreen tiles, so you can compare the two even better. (http://www.windowsphone.com/en-us/store/app/photocasa-gallery/4f2eedf9-09c2-4baa-8ec5-160f0ca5f542)
bye, Smirny
BIG EDIT:
I think I finally found a solution:
Go to your ease of access settings and check whether the magnifier is enabled. I enabled it just for fun, but since I disabled it again this phone is very very smooth again! Hope it also works for you =)