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Old 08-01-2011, 14:15   #1
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OpenCPN - Fedora 14 - GPSD

Hello,

I'm having a fit trying to get Version 2.3.1 Build 2010-12-28 to talk to my Zenstar III USB GPS via GPSD 2.95 under Fedora 14. I have OpenCPN configured for Network GPSD, NMEA Baud Rate 4800. I get nothing in the Data Stream Window. It will not work when configured for /dev/ttyUSB0 either. Looking at the gpsd site, it indicates that there have been some significant changes. Maybe it's gpsd and/or libgps causing problems. Does anyone have insight to this issue?

Thanks,
Michael
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Old 09-01-2011, 13:31   #2
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With gpsd 2.95 and the latest OpenCPN you should use "Network LIBGPS" as NMEA data source, not Network GPSD.
Read Setting Up GPS | Official OpenCPN Homepage for more instructions.

To use /dev/ttyUSB0 as source, make sure gpsd is not running.

Thomas
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Old 10-01-2011, 05:12   #3
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Network LIBGPS

Thomas,

Thanks fo the reply. Is this how you configured your installation? Unfortunately, for some reason, with my 2.3.1, I do not have Network LIBGPS shown as a choice for GPS configuration. As for why, I don't know. As a fallback, I backed off to Fedora 13 and everything works well. I have a second laptop to troubleshoot the Fedora 14 issue.

Regards,
Michael
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Old 10-01-2011, 08:04   #4
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fedora fc14 opencpn 2.3.1

greetings,

I am having problems also with opencpn both 231 and the previous
version on fc14. In another thread I posted that my garmin
oregon 400c is communicating via gpsd and tested with xgps,
cpgs. Also in that thread I think it was stated that the message
window may not work. I have posted a jpg of the error msg
about a libgps mismatch. Not surprising to me also there are a few
occasions that my gps doesn't seem to be working with gpsd and
I end up having to reboot to get it working again. I tested a few
other application like gpsdrive and viking which don't appear
to have the problem so I think something needs to be tweaked in
opencpn. I would certainly be willing to do more testing but not
sure how to proceed.
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Old 10-01-2011, 10:13   #5
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Quote:
Originally Posted by michaeld View Post
Thomas,

Thanks fo the reply. Is this how you configured your installation? Unfortunately, for some reason, with my 2.3.1, I do not have Network LIBGPS shown as a choice for GPS configuration. As for why, I don't know. As a fallback, I backed off to Fedora 13 and everything works well. I have a second laptop to troubleshoot the Fedora 14 issue.

Regards,
Michael
Michael
I'm on Ubuntu and a bit rusty on Fedora.
Do you have the libgps package installed?
If you compile yourself, you need liggps-devel as well.
Seems like your gps has a Sirf chip, which has a few gpsd issues.
Reed Setting Up GPS | Official OpenCPN Homepage The instructions for BU353 should work for you as well as both uses a Sirf chip.
When connecting to gpsd, the gps is switched to Sirf mode. If you would like to try a direct connection, make sure to reset the gps to NMEA mode.

Thomas
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Old 10-01-2011, 11:41   #6
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Compiling 2.3.1 on Fedora 14

Hello Thomas,

Thanks for the clarification. As I suspected, Network LIBGPS was missing for a reason. I downloaded the source and discovered that it is a compile time option. Obviously, the 2.3.1 RPM is built without it.

I built/installed an RPM for the earlier OpenCPN Beta release for Fedora 13 a few months ago, and I may take a crack at that again. For the time being, I have a working system. I'm off for the Fort Lauderdale to Key West race on Wednesday. Next week will be the soonest I can look at this further.

Regards,
Michael
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Old 10-01-2011, 11:53   #7
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Michael, you're right, I build the rpm without that option as I don't use it myself... Thomas, should I enable it for the default rpm?

I updated Compiling - Linux | Official OpenCPN Homepage a few weeks ago, it should be easy to build your own on Fedora. Feel free to contact me if you've any question.

Regards,
Jean-Eudes
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Old 10-01-2011, 12:18   #8
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Originally Posted by SethDart View Post
Michael, you're right, I build the rpm without that option as I don't use it myself... Thomas, should I enable it for the default rpm?



Regards,
Jean-Eudes
Aha..
Yes, please rebuild with libgps enabled. That way users can choose for themselves if they want gpsd or a direct connection.

Thomas
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Old 30-01-2011, 03:08   #9
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I have re-built it after installing the gpsd-devel package and this now gives me the Network LIBGPS option. This works fine upon starting OpenCPN after a re-boot with gpsd enabled. However, if I quit OpenCPN and then restart, GPS is not working (the status icon is red). Restarting gpsd does not clear the problem, & both xgps & cgps still work OK.
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Old 30-08-2011, 09:44   #10
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Re: OpenCPN - Fedora 14 - GPSD

Quote:
both xgps & cgps still work OK.
those use gpsd daemon

I cant get opencpn to use libgps when it is selected. and sometimes I cant get opencpn to use /dev/ttyusb0 either


sometimes when I do cat /dev/ttyUSB0, I get nothing back, sometimes I do get data. xgps was working the whole time I was trying to get opencpn working.
xgps works most of the time. For me, gpsd has to be configured to use a set port , I could get that to work with running the dpkg reconfigure and setting the port to /dev/ttyUSB0

that ttyUSB0 port also may change to ttyUSB1 and I thought gpsd could cope with that change.
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