outrageously newbie question about playing with GPS on fedora

2014-10-12 Thread Robert P. J. Day

  (note: even though i'm running rawhide, this issue has nothing to do
with rawhide itself, so i'm using the regular list.)

  having never messed with GPS software running on linux, one or two
truly beginner-level questions. if i want to simply buy a GPS receiver
and set up my fedora laptop to start receiving raw NMEA data, once i
purchase the receiver and install something like gpsd, is there any
additional expense in terms of a monthly service subscription or
anything like that? (i warned you this would be a dumb question.)

  i'm interested primarily in experimenting with receiving/parsing
NMEA data, the kernel modules involved, etc., so i don't need
spectacular performance or precision. i'm in california next week so i
figured i'd check out these two USB GPS receivers:

 http://www.embeddedworks.net/satl114.html
 http://www.embeddedworks.net/satl116.html

then i'd install gpsd (or equivalent if one exists), fire up a client
and start reading data. is there any more to it than that? also open
to recommendations for other GPS receivers if anyone has good
experiences.

rday

-- 


Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca

Twitter:   http://twitter.com/rpjday
LinkedIn:   http://ca.linkedin.com/in/rpjday


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Re: outrageously newbie question about playing with GPS on fedora

2014-10-12 Thread John Mellor
There is no other expense, unless you want to get into tying in your
location to map data from a non-free source.  I use an older Holux
puck-type receiver, similar to your first selection.  Since my upstream is
somewhat flakey due to the variable latency problems introduced by my
incompetent last-mile provider, I provide my own NTP stratum-0 reference
clock from the NMEA stream.

On Sun, Oct 12, 2014 at 7:22 AM, Robert P. J. Day rpj...@crashcourse.ca
wrote:


   (note: even though i'm running rawhide, this issue has nothing to do
 with rawhide itself, so i'm using the regular list.)

   having never messed with GPS software running on linux, one or two
 truly beginner-level questions. if i want to simply buy a GPS receiver
 and set up my fedora laptop to start receiving raw NMEA data, once i
 purchase the receiver and install something like gpsd, is there any
 additional expense in terms of a monthly service subscription or
 anything like that? (i warned you this would be a dumb question.)

   i'm interested primarily in experimenting with receiving/parsing
 NMEA data, the kernel modules involved, etc., so i don't need
 spectacular performance or precision. i'm in california next week so i
 figured i'd check out these two USB GPS receivers:

  http://www.embeddedworks.net/satl114.html
  http://www.embeddedworks.net/satl116.html

 then i'd install gpsd (or equivalent if one exists), fire up a client
 and start reading data. is there any more to it than that? also open
 to recommendations for other GPS receivers if anyone has good
 experiences.

 rday

 --

 
 Robert P. J. Day Ottawa, Ontario, CANADA
 http://crashcourse.ca

 Twitter:   http://twitter.com/rpjday
 LinkedIn:   http://ca.linkedin.com/in/rpjday
 

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Re: outrageously newbie question about playing with GPS on fedora

2014-10-12 Thread Robert P. J. Day
On Sun, 12 Oct 2014, John Mellor wrote:

 There is no other expense, unless you want to get into tying in your
 location to map data from a non-free source.  I use an older Holux
 puck-type receiver, similar to your first selection.  Since my
 upstream is somewhat flakey due to the variable latency problems
 introduced by my incompetent last-mile provider, I provide my own
 NTP stratum-0 reference clock from the NMEA stream.

  i suspected as much, just wanted to make sure. i suspect that, once
i pick up a decent receiver, the setup and usage will be fairly
straightfoward.

rday

-- 


Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca

Twitter:   http://twitter.com/rpjday
LinkedIn:   http://ca.linkedin.com/in/rpjday


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sony-ericsson p910i

2014-10-12 Thread Walter Cazzola

Dear Experts,
since I'm moving to a new phone my old sony-ericsson p910i is going to
retire but before that I'd like to get all the SMS, phots and phone
numbers I've stored on it and that I can't move to the SIM (too small).

It connects to my laptop through a craddle and a usb cable and lsusb
gives the following:

Bus 003 Device 003: ID 0403:fc82 Future Technology Devices International, Ltd 
SEMC DSS-20/DSS-25 SyncStation
Device Descriptor:
  bLength18
  bDescriptorType 1
  bcdUSB   1.10
  bDeviceClass0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 8
  idVendor   0x0403 Future Technology Devices International, Ltd
  idProduct  0xfc82 SEMC DSS-20/DSS-25 SyncStation
  bcdDevice4.00
  iManufacturer   1 Sony Ericsson
  iProduct2 SEMC DSS SyncStation
  iSerial 3 LU1025V8
  bNumConfigurations  1
  Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength   32
bNumInterfaces  1
bConfigurationValue 1
iConfiguration  0
bmAttributes 0x80
  (Bus Powered)
MaxPower   40mA
Interface Descriptor:
  bLength 9
  bDescriptorType 4
  bInterfaceNumber0
  bAlternateSetting   0
  bNumEndpoints   2
  bInterfaceClass   255 Vendor Specific Class
  bInterfaceSubClass255 Vendor Specific Subclass
  bInterfaceProtocol255 Vendor Specific Protocol
  iInterface  2 SEMC DSS SyncStation
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81  EP 1 IN
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0040  1x 64 bytes
bInterval   0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02  EP 2 OUT
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0040  1x 64 bytes
bInterval   0
Device Status: 0x
  (Bus Powered)

But the KDE device notifiers (I don't know the application name) don't
recognize its presence not mount it automatically.

Googling around seems that the tool to connect to a smartphone (also old
generation as mine) is gnokii but seems that it needs to be configured
before detecting the phone and I'm not able to do that. Google doesn't
help either: I didn't find any configuration for gnokii supporting my
phone.

So, some of you can help me?

Best
Walter

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Re: Can't re-create initrd

2014-10-12 Thread CLOSE Dave
I wrote:

 Eventually, I want to modify the initrd. But first I want to find a
 working procedure to create the revised version. So, without changing
 anything, I'm trying to recreate the initrd. If I can't get an
 unmodified version to work, I probably have no hope for a modified one.

 My current command sequence is,

 # mkdir newrd; cd newrd
 # unxz ../initrd.img | cpio -im
 # unxz ../initrd.img | cpio -it | cpio -oc | xz ../initrd2.img

 The result is slightly smaller than the original. lsinitrd shows both
 images to have exactly the same content in the same sequence but with
 different timestamps on directories and links.

 Without changing the PXE instructions, either the kernel or the append
 lines, I move the new file on top of the original and try to PXE boot.
 That's when it fails. It does appear to find the root as several screens
 worth of messages fly by. The last few I see make reference to sda and
 sdb (the target has two disks). But I can't read fast enough to see the
 last messages before the kernel panic (which fills the screen).

Well, I've found a procedure that can successfully create a new initrd. 
It was suggested that I use the xz_wrap.sh script included with the 
kernel. That script is probably used for the initramfs associated with 
the real kernel but doesn't appear to be used for the PXE kernel and 
initrd. Using it didn't work but did point me to the various xz options 
which might be relevant. I also found some clues reviewing the output of 
xv -lvv on the standard initrd. Here is the procedure which works.

find . | cpio -oc | xz --check=crc32 --lzma2=dict=1MiB ../initrd2.img

Probably the most critical part of that is the crc32. xz defaults to 
crc64 but I'm told that the kernel doesn't include the code for that.
-- 
Dave Close, Thales Avionics, Irvine California USA.
cell +1 949 394 2124, dave.cl...@us.thalesgroup.com

If a cluttered desk is a sign of a cluttered mind,
of what then is an empty desk? --Albert Einstein
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Re: Can't re-create initrd

2014-10-12 Thread jd1008


On 10/12/2014 01:39 PM, CLOSE Dave wrote:

find . | cpio -oc | xz --check=crc32 --lzma2=dict=1MiB ../initrd2.img

So . (dot) is /boot/grub2 ??


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Latest updates for mate no longer remember what gui apps were running in previous login.

2014-10-12 Thread jd1008

Hi all,
Mate is not restarting the apps that were running in previous login.
Apps like thunderbird, firefox, smplayer, skype,  etc.

Looking to see if someone found a solution for this.


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Re: Can't re-create initrd

2014-10-12 Thread Roger Heflin
. (dot) usually in these cases are whatever preferred named
sub-directory that you extracted it in to start with.

On Sun, Oct 12, 2014 at 2:48 PM, jd1008 jd1...@gmail.com wrote:

 On 10/12/2014 01:39 PM, CLOSE Dave wrote:

 find . | cpio -oc | xz --check=crc32 --lzma2=dict=1MiB ../initrd2.img

 So . (dot) is /boot/grub2 ??



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What happened to system-config-display

2014-10-12 Thread jd1008

I used to be able to use it for changing resolutions.
Is there no replacement or am I missing a package?
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Re: What happened to system-config-display

2014-10-12 Thread Frank McCormick

On 12/10/14 04:35 PM, jd1008 wrote:

I used to be able to use it for changing resolutions.
Is there no replacement or am I missing a package?



  It's been MIA since Fedora 15 - they suggest xrandr



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