Database Info

D3D Driver

Hello
I have been flashing cooked roms for long time and I started reading about this D3D driver inside some cooked roms.
However, I have not notice any difference between cooked Rom with D3D driver and ones without.
So my question is , what is the difference and advantage of having D3D driver?

Right now the driver doesn't accelerate 2D, so it wouldn't do anything except help you run D3D games. I think people are mostly including it in ROMs so there's a lot of testers giving feedback, as much as any other reason.

The main difference you'll probably see is with reference to gaming. The 2d drivers (if released) will have a bigger impact for non-gamers. If you play the light.exe, you'll notice a huge difference with the FPS.

y2kalpha said:
Hello
I have been flashing cooked roms for long time and I started reading about this D3D driver inside some cooked roms.
However, I have not notice any difference between cooked Rom with D3D driver and ones without.
So my question is , what is the difference and advantage of having D3D driver?
Click to expand...
Click to collapse
I'm guessing at hardware acceleration, with the included tests you can check its perfomance. But i know what your saying, there doesn't seem to be any advantages for the everyday user.

yardie.spike said:
I'm guessing at hardware acceleration, with the included tests you can check its perfomance. But i know what your saying, there doesn't seem to be any advantages for the everyday user.
Click to expand...
Click to collapse
depends what u consider an everyday user. for instance, with the d3d drivers, tomtom 6 flies compared to what it used to be like on a kaiser. i consider tomtom to be an everyday user app, tho i can see why it also wouldnt be.
once manilla is fully ported to qvga , even without 2d accel i think it ill change things for the every day user.

djboo said:
depends what u consider an everyday user. for instance, with the d3d drivers, tomtom 6 flies compared to what it used to be like on a kaiser. i consider tomtom to be an everyday user app, tho i can see why it also wouldnt be.
once manilla is fully ported to qvga , even without 2d accel i think it ill change things for the every day user.
Click to expand...
Click to collapse
I do have tomtom6 on my tilt. But I still can not see better performance with D3D driver. With or without, tomtom6 is very smooth.

I guess evey user experience can/will be different, but TT6 without the drivers was useless for me. I was missing turns because the screen couldnt update fast enough. The drivers made a huge difference. It didnt even really look smoother, just more choppy frames than before lol. TT7 is great though.

cp_kirkley said:
I guess evey user experience can/will be different, but TT6 without the drivers was useless for me. I was missing turns because the screen couldnt update fast enough. The drivers made a huge difference. It didnt even really look smoother, just more choppy frames than before lol. TT7 is great though.
Click to expand...
Click to collapse
I have the exact opposite. TomTom 6 is lightning quick on my Tilt, but I stopped using it because of it's terrible maps for my area; the desolate town of Philadelphia PA. TT7 is completely unusable for me because within 5 seconds of starting navigation, the maps stop redrawing themselves.
I'm starting to think that the source of my TT7 issue is running a ROM ported from the Xperia or Diamond. I'm gonna flash to a true Kaiser ROM and see if the issue goes away.

NotATreoFan said:
I have the exact opposite. TomTom 6 is lightning quick on my Tilt, but I stopped using it because of it's terrible maps for my area; the desolate town of Philadelphia PA. TT7 is completely unusable for me because within 5 seconds of starting navigation, the maps stop redrawing themselves.
I'm starting to think that the source of my TT7 issue is running a ROM ported from the Xperia or Diamond. I'm gonna flash to a true Kaiser ROM and see if the issue goes away.
Click to expand...
Click to collapse
So far, best TomTom combination for me is,
TomTom6 maps and TT7 app.
For me this had never given me a problem

Is newer better?

Hi all,
Having tried most of the recent ROMS and radios on this forum and have to give massive credit to the ingenuity and skill of the Chefs on here that there is so much choice available. However, I consistently had an issue with GPS fixes.The best initial fix time after a reset, or if I'd not used GPS for a few days, was about 1 minute outside in bright sunshine with no clouds. For cloudy weather this could go up to over 10 minutes. If I tried getting a fix inside at my desk which is next to the window, sometimes I would give up waiting as it just never got a fix (I realise that ordinarily you would not need GPS indoors, but it makes testing on a cold, wet day in the UK a lot easier...)
I tried pretty much everything in various GPS threads, using GPS Test, Quick GPS, disablng A-GPS etc and nothing consistently helped. I could not believe that the Kaiser was so much worse than my old Artemis.
One thread mentioned several folks downgrading to WM6 rather than 6.1 as they claimed this was better. I tried this and hey presto, I now get a cold fix in about 30 secs max, on a good day it can be 10-15 secs. At the same desk above, I get a fix in about 30 secs too. Not only that, my device in use seems to feel faster and things like screen rotate on opening the keyboard seem more so (this is subjective, not measured it).
This made me wonder what the advantages of WM6.1 actually are. From searching around, the list of things that apparently differ are :
Threaded SMS
Speed Increases
PIE Zoom Out
Task Manager
Office One Note
Of these, there are alternatives to most of them :
Threaded SMS use PocketCM,
PIE Zoom use Opera,
Task Manager - many alternatives,
One Note use TouchNotes and
Speed increase - I'm not convinced of in daily use.
However, all the chefs on this forum have moved over to 6.1 so I'm wondering that either the majority of people do not have GPS issues like I do or, as is exceptionally likely, there are other reasons that I do not know for preferring 6.1.
Any chefs out there fancy commenting on why you prefer 6.1 over 6.0 to save me from my ignorance?
Cheers,
Jez.

Same here
I have experienced the same mate. I have tried God knows how many 6.1s and besides, they are looking great and neat (thanks to our brilliant chefs here), i didn't see any improvement on my tilt, just opposite. I have experienced annoying non responsive display, very slow response time, and there was a time when I had to press display several times before I was able to run anything on the phone... let alone the GPS.
Now, I have an original HTC WM 6.0 Pro/ ROM 1.56.405.5/ Radio 1.27.12.11 and I have to say that my Tilt has never been faster and more stabile. Moreover, GPS signal is much better and even works when I put kaiser near the window. It is cloudy and rainy here in Bosnia now, yet it took only 15sec before it received signal.
So, I have to say that this one works better for me.

Lately I too have had more issues that I wish to have. Just seems there is no perfect, or even close mix of ROM/Software that is good enough to be a daily use type. Not sure if the chefs are just over-doing or we just have a bad mix of software at this time. I do hope the chefs continue to work on a better ROM, I do know they try hard and should be commended for their efforts, but right now I may move back to an older version that just worked better. Maybe 6.0, but not quite sure yet.

This is nothing new..many have reverted back to 6.0. But for what its worth, I never have to wait longer than 45 seconds in the U.S. using the emo radio inside my car rain or shine.

After receiving a warranty replacement for my Kaiser, I'm now using the stock T-mobile UK rom, and it's far better than any WM6.1 cooked rom + radio that I've tried when it comes to GPS.
However, the battery life is probably not quite as good. The unit is just as fast as with any of the cooked roms I've tried.
I can't really think of any tangible benefits from using cooked roms, as this stock WM6 rom works well, and I can add any functionality I need by installing the right programs.
I use PointUI, so I would not benefit from the significant improvements to the WM gui that the cooks have produced.
However, I enjoy trying out new roms and seeing what the cooks come up with, so I may still do it anyway, just for the fun of it!

you are absolutely right and now i am going to downgrade to 6.0

GPS is nice to have on my phone but if I truly needed GPS I would have bought a truly more reliable (read: GPS Specific) device.
If I need directions I can still use Google Maps to plot the turns, on my own - like in the old days. *snicker*

TasoM said:
Now, I have an original HTC WM 6.0 Pro/ ROM 1.56.405.5/ Radio 1.27.12.11
Click to expand...
Click to collapse
BTW: What version of HardSPL are you using?

Ok, Someone has a chance to explain why this thread should be left in ROM Dev and not moved to Kaiser General.

JimmyMcGee said:
Ok, Someone has a chance to explain why this thread should be left in ROM Dev and not moved to Kaiser General.
Click to expand...
Click to collapse
Sorry, duh, I guess we aren't talking about the development of ROMS, eh?

why
JimmyMcGee said:
Ok, Someone has a chance to explain why this thread should be left in ROM Dev and not moved to Kaiser General.
Click to expand...
Click to collapse
... perhaps because it considers WM6.1 ROM development in the context of the WM6 platform for the Kaiser.
@tabashir --> Threaded SMS use PocketCM. I would be interested in a free replacement to the WM6.1 threaded SMS but http://www.pocketcm.com/index.php does not contain any details of this. Can you throw some light on this. Thx
[Edit - OK found threaded SMS using pocket CM thanks - will check it out thanks]

Thanks for the replies all. Although no answers on why to prefer 6.1, at least I know I'm not completely insane in going back to WM6!
Have not gone the whole hog and gone to a stock ROM tho, have been having fun trying out some of the different cooked ones, albeit old as they are now. Am currently on Blackwood which with Radio 1.27.14.09 and SPL 3.29.
Like TasoM, have not had any freezes or non-responsiveness with WM6 so far which I guess is what the forum is all about, try them all and find what suits your circumstances. I do find the battery life 'seems' worse than when I was on 6.1 and the Emo radio.
Reply to convert > glad you found the threaded SMS. Lots of nice skins for it too. I don't use it personally as I find iContact faster and better for just contacts and I don't need threaded sms.
Reply to JimmyMcGee > The original question was aimed at the Chefs creating the WM6.1 Roms so I figured it better in the Development thread. However, I really don't mind if you move it to where you think it is more appropriate.
Now I gotta go play with PointUI, was not aware of that one before!

How's the video playback and game/ui performance on the stock 6.0?

a major one everyone is forgetting is the dev of the 3D drivers and soon(tm) 2D drivers that is a major reason a lot of people including me have moved on, another one is that when some major changes come in 6.1 i will not have major issues with upgrading my apps mms/sms etc... to the new ROM and not have to worry about radio's and hardspl as i would be already running it..
besides you guys forget, your running windows... i always reboot my phone and a good reason is because i change batteries so every 1-3days it will be rebooted, it mixes most of the small issues.
As far as GPS its always been the same, i havent ever bothered with GPS to be there for me, its just to aid me, i do use google maps which helps i never have used GPS to tell me were to drive i think that is insane, nor will i ever do it, i like to know exactly were to go and what my options are

tabashir said:
Hi all,
Having tried most of the recent ROMS and radios on this forum and have to give massive credit to the ingenuity and skill of the Chefs on here that there is so much choice available. However, I consistently had an issue with GPS fixes.The best initial fix time after a reset, or if I'd not used GPS for a few days, was about 1 minute outside in bright sunshine with no clouds. For cloudy weather this could go up to over 10 minutes. If I tried getting a fix inside at my desk which is next to the window, sometimes I would give up waiting as it just never got a fix (I realise that ordinarily you would not need GPS indoors, but it makes testing on a cold, wet day in the UK a lot easier...)
I tried pretty much everything in various GPS threads, using GPS Test, Quick GPS, disablng A-GPS etc and nothing consistently helped. I could not believe that the Kaiser was so much worse than my old Artemis.
One thread mentioned several folks downgrading to WM6 rather than 6.1 as they claimed this was better. I tried this and hey presto, I now get a cold fix in about 30 secs max, on a good day it can be 10-15 secs. At the same desk above, I get a fix in about 30 secs too. Not only that, my device in use seems to feel faster and things like screen rotate on opening the keyboard seem more so (this is subjective, not measured it).
This made me wonder what the advantages of WM6.1 actually are. From searching around, the list of things that apparently differ are :
Threaded SMS
Speed Increases
PIE Zoom Out
Task Manager
Office One Note
Of these, there are alternatives to most of them :
Threaded SMS use PocketCM,
PIE Zoom use Opera,
Task Manager - many alternatives,
One Note use TouchNotes and
Speed increase - I'm not convinced of in daily use.
However, all the chefs on this forum have moved over to 6.1 so I'm wondering that either the majority of people do not have GPS issues like I do or, as is exceptionally likely, there are other reasons that I do not know for preferring 6.1.
Any chefs out there fancy commenting on why you prefer 6.1 over 6.0 to save me from my ignorance?
Cheers,
Jez.
Click to expand...
Click to collapse
Try the newer rom(s) with manilla 2D (hyperdragon III is currently the only one publicly available). Newer is better.

I too switched to 6.0
tabashir said:
Thanks for the replies all. Although no answers on why to prefer 6.1, at least I know I'm not completely insane in going back to WM6!
Have not gone the whole hog and gone to a stock ROM tho, have been having fun trying out some of the different cooked ones, albeit old as they are now. Am currently on Blackwood which with Radio 1.27.14.09 and SPL 3.29.
Like TasoM, have not had any freezes or non-responsiveness with WM6 so far which I guess is what the forum is all about, try them all and find what suits your circumstances. I do find the battery life 'seems' worse than when I was on 6.1 and the Emo radio.
Reply to convert > glad you found the threaded SMS. Lots of nice skins for it too. I don't use it personally as I find iContact faster and better for just contacts and I don't need threaded sms.
Reply to JimmyMcGee > The original question was aimed at the Chefs creating the WM6.1 Roms so I figured it better in the Development thread. However, I really don't mind if you move it to where you think it is more appropriate.
Now I gotta go play with PointUI, was not aware of that one before!
Click to expand...
Click to collapse
I too switched to WM 6.0 and I think that I am much happier than with Dutty's ROM. Do not get me wrong, there was a lot of nice things in it. But I have a feeling that I would rather prefer stock HTC ROM and add some useful software. I have not tried stock HTC ROM in 6.1. I am curious if GPS works teh same as in 6.0 ROM?

To be honest, 6.0 is much stable and less problematic so far compare to 6.1.
Most of the 6.1 problems (e.g. cleartype landscape) have some workaround solutions. But problem like the famous Activesync 86000107 still doesn't have any solution yet.
For me, the only advantage of 6.1 is much faster startup time, and overall system performance.

drutort said:
a major one everyone is forgetting is the dev of the 3D drivers and soon(tm) 2D drivers that is a major reason a lot of people including me have moved on
Click to expand...
Click to collapse
The 2D drivers could be a real benefit, but there's no advantage for me or most people having the 3D drivers installed at the moment.
I'll probably give Hyperdragon with TouchFlo 2D a go, but I would not be suprised if I end up sticking pointUI on it and have the exact same functionality and aesthetics as the stock rom. I hope I'm wrong!

kolibrik said:
I too switched to WM 6.0 and I think that I am much happier than with Dutty's ROM. Do not get me wrong, there was a lot of nice things in it. But I have a feeling that I would rather prefer stock HTC ROM and add some useful software. I have not tried stock HTC ROM in 6.1. I am curious if GPS works teh same as in 6.0 ROM?
Click to expand...
Click to collapse
I am done with problem 86000107, I want to go back to WM 6.0, Where did you find the official WM 6.0 ROM World wide English, and did you need to install a HardSPL or not ????
Thanks
Danny K.
[email protected]

Now we're talking little bout religion here, LoL.
There was times at beginning of WM6.1 issuance that with so many problems came with it i sometimes convert back to stock HTC WM6, or Schaps 4.30 (most good looking and well done cooked WM6 i tried). I remember it was only before July i keep converting back. Yett most of the time i did it only to get the feeling of what's right before and try to 'port' (find solution) the great feelings to the newer WM6.1.
Nowadays, WM6.1 already much familiarized by the chefs here and gained much tweaks. On a proper hand, it does make big difference in performance. My Kaiser is now running full fledged without any issues, it even have landscape cleartype enabled now for my liking (yet i don't do threaded sms). Faster, more stable, less power hungry, quicker gps fix, more instant screen rotation, than before.
Wow, what happened? It's because the wonder of this community, that's why. AFAIK, i have used several PDA and the conclusion is still the same: left to itself, Microsoft's (MS) product does sux big time. Without this community it will dragging its own feet to its graveyard. I think HTC at least a bit better than MS in adapting to market's demand (i truly belief many HTC engineers are member of this forum, much more than MS's). Cuz I saw some pattern in behaviour here.
Bottomline, WM6.1 is indeed much more problematic than WM6. Yet WM6 was also much more problematic than WM5, or 2003SE!
That's the way MS works, man, everytime they issue newer OS they try to include more functionalities, features, etc, while at the same time introducing more bugs than before. For example, who use windows vista here, care to share your experience with it? Cuz I don't. I even use winXP only after SP2 issued.
Never trust Micro$oft product! Just trust the power of users and communities who expanding it! Now my religion is not WM6.1, but rather, XDA-Devs. So in case next time XDA-Devs decided they have enough with WM,then i may join the convert to Android. Amen.

GPS/Navigation Works Very Poorly

Hello all,
I'm currently running CM7 build 31 and Faux's 2.3.0 LV Kernel. Everything works excellently, but I've noticed a common "theme" across many ROMs I've been using. My GPS and Google Navigation work horribly.
The satellite locks quickly, but I notice that when I come to a stop, the map screen starts changing directions as if I were moving my car, rerouting, and all kinds of crap. I've owned a few standalone GPS units and they've never exhibited this behavior.
Does anyone experience the same thing, and if so, could recommend a way for me to fix or improve my GPS experience?
Thanks!

I do,then when I move it works fine.
Sent from my HTC Glacier using XDA App

My GPS and nav have worked fine up until I installed nightly 31 and the 2.3.0 LV kernel (the 'CFS fix' one). Now it doesn't see any satellites at all.
[Edit: problem resolved by putting into and taking out of Airplane mode]

Hoping others have more input here. Seems that witeboy also experiences my problem. However, sometimes because of the issue, it takes a very long time to pick up where it left off.

i have the same problem as you, if thats any help lol. Im on iced glacier 1.1.6
GPS reception is pretty spotty also. but im using a case and dock in the car and the dock is down near my shifter, not the dashboard. so that might explain why

xiton said:
Hello all,
I'm currently running CM7 build 31 and Faux's 2.3.0 LV Kernel. Everything works excellently, but I've noticed a common "theme" across many ROMs I've been using. My GPS and Google Navigation work horribly.
The satellite locks quickly, but I notice that when I come to a stop, the map screen starts changing directions as if I were moving my car, rerouting, and all kinds of crap. I've owned a few standalone GPS units and they've never exhibited this behavior.
Does anyone experience the same thing, and if so, could recommend a way for me to fix or improve my GPS experience?
Thanks!
Click to expand...
Click to collapse
It does that on stock android.

I've had this happen on stock as well.

[Q] Best Rom Out For a Cycling Enthusiast?

I just recently rooted the Inspire and flashed 2 roms so far. None have been up to par with GPs for some odd reason.
Anyone out there also into sports with GPS? Could you throw me a bone here?
Thanks
SurferJD from humid s.Florida!

surferjd said:
I just recently rooted the Inspire and flashed 2 roms so far. None have been up to par with GPs for some odd reason.
Anyone out there also into sports with GPS? Could you throw me a bone here?
Thanks
SurferJD from humid s.Florida!
Click to expand...
Click to collapse
There is no best ROM. Your gps performance depends on many factors.
For any given ROM, some will say their gps locks in 2 seconds indoors and others will say they can't ever get a lock. And I'm being completely serious when I say that.
You're going to have to do some reading and trial-and-error experimentation to find the best combo for yourself.
"Best ROM" threads usually end up locked by Mods, just so you know.

I use Endmundo for Cycling (after trying several) and it works fairly well but have GPS issues now and then. I tried various ROMS but now back on stock and it seems fine. Cloud cover, atmospheric issues, airports etc all have an effect on the GPS. There may be a way to have Internet compensate for the loss of GPS but have not seen a proggy do that yet...
BTW I also have the Garmin Edge 500 on another bike and it seems to have GPS issues at times also - but it seems to compensate somehow by faking or estimating the numbers based on averages.

Since you are rooted head over to the Android development section and download the GPS Fix. It will usually improve your GPS on most ROM's.
Sent from my Desire HD using XDA App

Is GPS on captivate good enough on ICS

My current phone got stolen, so I need something on a budget for the meanwhile. I was thinking of getting a captivate since it has lot of development with stable ICS builds..
My only concern is the GPS ? I had heard there were problems initially with early galaxy S units, resulting in poor GPS performance. Do they still exist in ICS roms or were they fixed ? Also if anyone know were these on hardware side or if they were just software bugs?

Mafioso said:
My current phone got stolen, so I need something on a budget for the meanwhile. I was thinking of getting a captivate since it has lot of development with stable ICS builds..
My only concern is the GPS ? I had heard there were problems initially with early galaxy S units, resulting in poor GPS performance. Do they still exist in ICS roms or were they fixed ? Also if anyone know were these on hardware side or if they were just software bugs?
Click to expand...
Click to collapse
There are several threads on the gps problem and it's not related to rom, per se. I am on GB and changing the etc/gps.conf file has made my GPS reliable. The position of the GPS antenna inside the phone is far from ideal and samsung didn't ship it with best settings in the gps.conf file.
if you search for 'gps.conf' you will find the threads. it is pretty simple to replace the gps.conf file or edit it.
Some ROMs include the gps.conf fix.
Sent from my SAMSUNG-SGH-I897

I love many things about my captivate, but the GPS is not one of them. There are fixes that help some, but it still seems too unreliable. If I'm driving it loses signal all too often.

Gps
For a decent gps signal I flash H3llstorm GPS Fix after flashing a Rom... Still Doesn't compare to other devices signal strength, but makes gps usable
It works on CM9, AOKP and MIUI
-Sorry for bad English

GPS, also, depend on your baseband version.some baseband firmwares consumes more battary charge, but gives better GPS signals. I use XXJVT modem and have no issues with GPS signal.

I figured out something cool. If I hold my captivate up to the windshield it will lock on nicely, whereas if it's in my lap when driving it won't. Then I have a windshield mount where I keep it. It's been working better. This has been true on AOCP and jelly bean.

Running aokp kang build 4 GPS locks normally < 30 sec
Sent from my SGH-I897 using xda premium

After flashing to latest stable Cyanogenmod 9.1 my GPS is very good. I get 8 out of 9 satellite lock in about 5 seconds where it used to take 30-40 seconds with stock ROM and about 20-30 with 2.3.5 ROM I used for a while. That's in exactly the same spot right in front of my house.

that's the only thing i hate about Captivate @@
GPS is unbelievably weak, it has to combine with gps from mobile network, i can never use pure gps with only satellites @@

The GPS is my least favorite component of my Galaxy S.
I do use my Captivate as my GPS while geocaching.
I find that for best reception I have to hold the phone so the back is pointed up. To do this is is slightly over my head and I have to look up at it. Going though some trees and leaning over the phone it will loose connection. In the car driving I only find occasionally it will loose connection. In the mount on the dash it is in the ideal orientation.
My Transformer Prime tablet has an even worse GPS but the update external GPS add-on improves the GPS to be much better than the Captivate.
If it realy matters you can get a blue tooth GPS that can work with this and probably any phone you might upgrade to in the future.
I am running ICS on my phone and under Location Services there is GPS source to select different GPS. I just tried to connect using bluetooth to my Garmin car GPS but the only bluetooth functionality it has is to send sound to car stereo. and I could not even pair the Garmin with the Captivate.
Lots of bluetooth GPS receivers to choose from on eBay.
This thread might give you some more information of some of the units others have tried.
http://forum.xda-developers.com/showthread.php?t=1122688
I am going to stick with the GPS in my phone. It has worked good enough for two years and will be updating my phone in Feb or March.
Jim

Honestly, you don't choose the Captivate for its GPS. Although, many ROMs have GPS fix and makes it usable. I can't say I had much issue with mine, it does the job it needs to do but depending on your connection, it might not be optimal. I did lose signal for a few seconds while driving but never lost signal to leaning over it tho eh

I almost want to say that the Captivate has the worst GPS out of most phones but I don't have much experience with other phones. The captivate is decent though and I think with the latest versions of JB, it seems to operate much better.

Hi all, I have a question. Why my GPS get fix fast and strong in gpstest apk and dont get a good fix running the google Navigator?
Enviado do meu SGH-I897

^
Try this... http://forum.xda-developers.com/showthread.php?p=19422197
Sent from my SGH-I897 using xda premium

4-2ndtwin said:
^
Try this... http://forum.xda-developers.com/showthread.php?p=19422197
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Is It works for CM10 stable (JB 4.1.2)?

^
Sorry, but nope. Just good for samsung stock gb roms or those based on that. Should have mentioned that before. My bad.
Sent from my SGH-I897 using xda premium

igorgomez said:
Hi all, I have a question. Why my GPS get fix fast and strong in gpstest apk and dont get a good fix running the google Navigator?
Enviado do meu SGH-I897
Click to expand...
Click to collapse
I've noticed that the google nav app maybe sensitive to the accuracy of the system time. When the clock is off by more that a few seconds, it seems to consistently report my position incorrectly, by 50 meters or more, in the same direction.
For example, when driving southbound, it will show me driving south, but 100 meters off the road to the east and this offset will persist until the clock is corrected.
I've installed clocksync app and set it to sync time every hour. It seems to help: Google nav doesn't give the persistant offset, but it does lose lock sometimes. I just toggle gps enable in the status bar and it recovers.
My gps.conf file uses the hellstorm fix. I am running GB debloated stock rom with Corn 7.06a kernel.
Sent from my SAMSUNG-SGH-I897