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The HTC EVO 4G, and possibly the Nexus One, have framerate issues.  (Source: CS Monitor)
Some people say the slower framerates detract from the visual experience

The HTC EVO 4G has some minor drawbacks -- its battery life is rather poor necessitating daily recharges; and it can't make simultaneous calls and internet requests when outside 4G (WiMAX) coverage.  However, the phone packs a gorgeous 4.3-in. screen and some of the best hardware seen in a smartphone, Android or otherwise.

Some owners and developers, however, have noticed something unusual.  The phone appears capped at 30 frames per second in both 2D (Canvas) and 3D (OpenGL), according to posters at
xda-developers and Google Code forums.  

In the current version of Sense UI and Android 2.1 which are loaded in the phone, that slower framerate detracts just slightly from how smooth the animations look, compared to on phones like the HTC Hero, which gets 54 fps.  However, in Froyo -- the upcoming Android 2.2 upgrade -- the drop in frame speed reportedly becomes especially notable.

Android framework engineer "Romain Guy" isn't quite sure where this problem is coming from.  He wrote a response, saying that for the record the "target was, is and will be 60fps."  Strangely the Nexus One, which has official Froyo support already, also seems to be having the issue.  It at least starts out during the Froyo running load animation at 60 fps (which allows it to appear smooth), but its framerate subsequently drops to 30 fps upon reaching the home screen.

The HTC EVO 4G and Nexus One are two of HTC's most powerful handsets in terms of RAM, processor, and graphics capabilities.  It's more than likely that this is like a firmware issue and not a hardware issue, considering the HTC Hero, by contrast, has inferior core hardware.  Hopefully, HTC can get to the bottom of this in a timely fashion, so Android owners can get back to breaking some mobile 3D benchmark records on their sleek smartphones.



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Maybe not a bug, but a powersaving funtion?
By michael67 on 6/11/2010 9:38:39 AM , Rating: 4
Maybe its done to save battery, lower fps also gives lower power draw from the GPU, as the EVO is all ready not making it true the day when heavily used.




By JasonMick (blog) on 6/11/2010 9:52:44 AM , Rating: 2
quote:
Maybe its done to save battery, lower fps also gives lower power draw from the GPU, as the EVO is all ready not making it true the day when heavily used.


Yea that's the biggest drawback. I love my EVO, but I already have had it die on me once when I forgot to charge it for the night. Between a nighttime charge and an 1 hour car-ride charge it gets a day of battery life. And that's without using the tethering or virtually any apps most of the time (except the built in browser) to boot.

I'm hoping the battery life issues are addressed in a firmware update. It seems like it can't just be a hardware issue...


RE: Maybe not a bug, but a powersaving funtion?
By ksherman on 6/11/2010 10:00:57 AM , Rating: 5
I'm often stunned by the fact that people don't charge their phones every night. Even my Blackberry Pearl that could go several days between charges, I still charged it every night.

Not a dig at you Jason, I just read this a lot about people's experience with the EVO. I keep wonder what keeps them from charging it every day...

Heck, even my iPhone 3G (though now getting oooooold) needs to be charged every night and quite often needs a pick-me-up late afternoonish.

I get my EVO today, so I'll see what all the fuss is about...


By JasonMick (blog) on 6/11/2010 10:16:10 AM , Rating: 2
quote:
Heck, even my iPhone 3G (though now getting oooooold) needs to be charged every night and quite often needs a pick-me-up late afternoonish.


Yea it's the need for additional day-time charging that really freaks me out. I used to have some sort of Samsung flip phone way back in the day that got three or four days on a charge. Since my LG Chocolate -> RIM Blackberry Storm -> HTC EVO 4G transition, my battery life has gotten progressively worse.

Maybe I'm just not used to it yet, but I had one day where I charged the night before, charged for an hour in the car, only visited like a few websites and made maybe one half hour call and I came home @ 10 to discover that it's in the red or yellow area. (I used no apps that day)

Seems like the battery drains down pretty fast even when completely idle.


By therealnickdanger on 6/11/2010 11:16:07 AM , Rating: 3
Even though it's not really an excuse to allow for such power-hungry devices, I think Seidio is coming out with a 3500mAh battery which should allow for all-day power use.


By blueboy09 on 6/12/2010 8:22:00 PM , Rating: 2
Keep in mind that the screen uses about 1/2 - 3/4 of your total battery life, so that takes a toll on your battery. I have found out that if you can turn off your display, you can substantially cut your battery time, seriously. I did that w/my Samsung Omnia (ancient I know) and I found out that that the battery will drain a hell of a lot less (providing of course that you don't use your Wi-Fi all the time) if you turn off your display @ 1 min (can get a 50% - 75% increase on battery life). Keep in mind that I have Windows Mobile 6 so this test could be substantially different from Apple OS and Android, but I found out that you can cut corners if you really look at your phone's real-time usage. Just my 2 cents. Feel free to comment if otherwise. - BLUEBOY


By quiksilvr on 6/11/2010 11:40:53 PM , Rating: 2
Here's hoping that Froyo with HTC Sense will come out soon and fix some of these issues (or exacerbate them when people start watching Flash in HD on them and using HDMI port to watch it on TV :D)


By ipay on 6/12/2010 2:02:47 PM , Rating: 2
I keep telling people this, so I don't know if you already know. Did you know that most / all Androids automatically monitor their power usage?

You can access it through:
Home > Menu button > Settings > About Phone > Battery Usage

It resets between each charge, and will tell you how long between last reboot / recharge (whichevers closest).

You know, just in case you wanted to run an app that might be power hungry, unlike a fruity phone where they'd just ban the app.


By BubbaJoe on 6/14/2010 1:38:49 AM , Rating: 2
It dies fast at idle because of 4g and GPS (seem to be the most power hungry). Disable both when you're not using them, I got 9 hours of life the other day on my EVO, and I was still syncing and running apps, but I didn't leave 4g or GPS enabled when I wasn't using them. Try that.


RE: Maybe not a bug, but a powersaving funtion?
By nidomus on 6/11/2010 10:24:11 AM , Rating: 2
I've been charging mine every night and its fine. I used it from roughly 8 in the morning to 9 at night before I got the 15% battery warning. From 8-5 I was mostly reading news and fiddling around with apps from the marketplace. I got home and was pretty much on it nonstop until I got the warning. My wife now says she's an EVO widow.

At work I'm connected to the company wifi, and at home my wifi, so I haven't had much use for the 3G (no 4G in my area).

I came from a blackberry and didn't use it near as much as I do the EVO, and my blackberry would need charging every night. Hell, I used the blackberry so infrequently I'd forget to charge it a lot of nights and it would be dead the next morning, or very close to it.

Honestly I'm pleased with the battery life, but then again I may not use it as intensively as others.


By ksherman on 6/11/2010 10:40:04 AM , Rating: 2
4G is pretty prolific in my area (Chicago, one of the first markets) so I was hoping to be able to use it a goodly amount. But that's what the car charger is for :). Can always charge over USB at work too if I must.


By ChgoMaverick on 6/11/2010 7:49:59 PM , Rating: 2
Well i also own an android phone it's a nexus one and i have very similar battery issues which are actually pretty serious.

i own 2 docking stations, 1 at my desk and 1 on my bedstand and i have two batteries, 1 of which is always (hopefully) in my pocket or in the charging dock at home.

i do run the battery juices down almost mercelessly it but i believe we live in a world where i am not the only power user that wants to use every bit of functionality available in my electronic devices. so i will have to agree with some of the discussions that the battery capabilities should be increased but i also believe that the effectiveness of the device is dependent on the efficiency of the processing.

i certainly don't have the answers but being a power user that is very demanding of my devices i do want things to change so I can empty my pockets and stop having to babysit my technology. Tech used to be easier but even so its more challenging for development as it continues to evolve. I personally am thrilled at the potential of the new devices and thus must be willing to share some of the pain of owning the most current devices.

...just my 2 cents


RE: Maybe not a bug, but a powersaving funtion?
By omnicronx on 6/11/2010 11:24:00 AM , Rating: 2
Ya I never understand why people don't charge their phones at night either. The way lithium batteries are designed these days, its better to keep them topped up, they will last longer.

Some people still seem to think its 1990, and they have to drain their battery upon each use.


By Mojo the Monkey on 6/11/2010 4:58:04 PM , Rating: 2
I think part of the reason is that most people leave all of the radios on all the time. I used to have battery concerns with my phone, then i easily solved them by selectively turning on my extra radios as needed. (not counting my cellular network connection, which is always on)

I know so many people who complaint about battery while just leaving WiFi, Bluetooth, and GPS on ALL THE TIME.


By RedRoss on 6/16/2010 3:54:39 AM , Rating: 2
I am stunned by the idea that somebody charges their phone every day :O If my phone can't last at least 3 days, I'm in a search for a new one (or a new battery).
What if you're out camping or smth similar, where there's no power outlet for say (again) 3 days? You take 3 phones???

BTW, I constantly sms, make some calls, check my e-mail a couple of times and browse the web for news or bus schedules, so can't say that I don't use any features of the phone.


By HotFoot on 6/11/2010 2:58:58 PM , Rating: 2
Are you running a few widgets on your home screen? I'm not actually that familiar with the EVO's OS, but my phone is running Maemo (also based on Linux). My battery used to be nearly dead each night by the time I went to plug the phone into the charger, but then I read about disabling widgets. I turned off my calendar widget, my weather widget, and my music player widget (I just launch those apps when I want to use them now). The problem was that the widgets would go along updating themselves on a frequent basis, and this would wake up the CPU and GPU to update the memory and video memory. Since taking the widgets off, my phone now lasts till evening losing only 10-20% charge unless I've made heavy use of it.


By d2globalinc on 6/11/2010 3:49:36 PM , Rating: 2
You guys all talking about battery life.. You do know that battery sucks dry on 4G - but 3G I can easily go 12 - 15 hrs a day.. This is a major point these blog/news sites forget to mention.. 4G can be toggled, and i'm in a 3G coverage area most of the time and NEVER have issues with data connection. Perhaps some of these shotty review places need to make sure they run all the profile, prl updates, etc - and then run it a day in 3g only and re-write their reviews. Turn on 4G only when doing heavy usage, etc. Its new tech, and there are bound to be issues outa the gate, so run 3G until those are addressed with a 4G toggle.. Its still better, and cheaper service than any other provider, and at least you have the option of using 4G in your area if you have it and being able to replace the battery when its dead with a fully charged one.


less deviation
By tokin on 6/11/2010 9:28:54 AM , Rating: 2
You'll probably notice less stuttering if the frame-rate happens to drop below a capped 30 than if it fluctuates from 60 to <30




RE: less deviation
By therealnickdanger on 6/11/2010 9:42:20 AM , Rating: 3
I'm not sure how advanced these mobile GPUs are, but I'm curious if any phones apply V-sync or triple-buffering in order to improve the appearance of animations. We all know how bad tearing looks on a large LCD when no syncronization occurs between the buffer and the screen, I guess I never thought about how it would look on a phone.

Even if the GUI runs at 30fps, doubling the frame to sync with the 60hz LCD/OLED would still make for a smoother-looking experience.

I'm not a big fan of the iPhone (for some specific reasons that I won't go into here), but its GUI is smooth as silk, I wonder if they use V-sync...


RE: less deviation
By FaceMaster on 6/11/2010 9:55:53 AM , Rating: 2
Triple-buffering? But that's a lag time of 100 ms!


Do Research
By topgun966 on 6/12/2010 1:22:21 AM , Rating: 2
Your article is incorrect. You would assume that a site called "Dailytech" would know what they are talking about. The evo DOES support phone call and data at the same time wtih 4g and wifi. Get it right




Reeealllyyy Jason??
By Smilin on 6/11/10, Rating: -1
RE: Reeealllyyy Jason??
By MindParadox on 6/11/2010 1:45:29 PM , Rating: 3
ok, so tell us why since you obviously know, or prove that you are a troll and don't reply :P


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