[Sugar-devel] [TRANSIENT ISSUE] 3G-Modem not being recognised

Ajay Garg ajay at activitycentral.com
Sat Nov 24 00:25:36 EST 2012


Hi all.

*
I tested on XO-1.75 with os14; the frame appeared fine (booting-up with the
USB-flash drive, and USB-modem inserted) !!!!!!!!!!!!!!!!!!!

*
Pulling off my hair, I re-tested on XO-1.75 with os11 (booting-up with the
USB-flash drive, and USB-modem inserted) ; thankfully, the frame-icon did
not appear (as before).

*
I then tested on XO-1.75 with the os12 (booting up with the USB-flash
drive, and USB-modem inserted); the frame-icon appeared FINE here too.


I compared the packages-difference between os11 and os12; os12 has an
updated version of usb_modeswitch and usb_modeswitch_data. Also, in os12,
there is no more the error

usb_modeswitch_dispatcher: *** glibc detected ***
usb_modeswitch_dispatcher: double free or corruption (!prev):
0x00081fe0 ***

that was happening in os11 (in the culprit case, that is).


So, bad news   : Things are happening without us  knowing the root-cause :-\
     good news  : Seems like http://dev.laptop.org/ticket/12340 can  be
closed :D


Thanks everyone for the help (especially James).



On Sat, Nov 24, 2012 at 10:31 AM, RJV <jv.ravichandran at gmail.com> wrote:

> Thanks, James/Tony. But that works, too, fine. The mobile icon plus the
> frame presence is ok.
>
> Another thing, though, that I have noticed is,
>
> With the 3G USB stick in, after Disconnec-ting and Remove-ing (with PM
> off) when I select Shut Down, it does not shut down normally. I have to
> Power off the system.
>
> XO 1.75 - 3.1, 12.1, 0.96, Build 21,
>
> Regards,
>
> Jv
>
>
> On Sat, Nov 24, 2012 at 10:28 AM, James Cameron <quozl at laptop.org> wrote:
>
>> On Sat, Nov 24, 2012 at 10:14:41AM +0530, RJV wrote:
>> > Hi James,
>> >
>> > >> I agree that the frame icon for the modem may not be present if power
>> > managament was enabled,
>> >
>> > The frame does work with the Power Management option unchecked. What
>> does "the
>> > frame icon for the modem" mean?
>>
>> http://wiki.sugarlabs.org/go/Features/3G_Support
>> "An icon will be added to the frame when a modem is connected, and the
>> user will be able to connect and disconnect from there."
>>
>> Also known as the "GSM device palette".
>> http://wiki.sugarlabs.org/go/Features/3G_Support/Share
>>
>> Since these mockups the icon has changed to a symbol for a mobile
>> telephone.
>>
>> The palette has not changed much, if at all.
>>
>> >
>> > Jv
>> >
>> >
>> >
>> > On Sat, Nov 24, 2012 at 2:51 AM, James Cameron <quozl at laptop.org>
>> wrote:
>> >
>> >     That's not what Ajay said here:
>> >     http://lists.laptop.org/pipermail/devel/2012-November/036409.html
>> >
>> >     Ajay, can you confirm in the above posting that all power management
>> >     was disabled?
>> >
>> >     I agree that the frame icon for the modem may not be present if
>> power
>> >     managament was enabled, but I see that as a separate problem now.
>> >
>> >     On Fri, Nov 23, 2012 at 05:20:45PM +0530, RJV wrote:
>> >     > As Jerry mentioned, the trick is to uncheck Power Management
>> option under
>> >     the
>> >     > Power options of the laptop. Otherwise, the scenarios outlined by
>> Ajay
>> >     can be
>> >     > reproduced.
>> >     >
>> >     > It seems the power supply to the USB ports do make a difference.
>> >     >
>> >     > Regards,
>> >     >
>> >     > Ravichandran J.V.
>> >     >
>> >     >
>> >     > On Fri, Nov 23, 2012 at 1:52 PM, <forster at ozonline.com.au> wrote:
>> >     >
>> >     >     USB flash drive
>> >     >
>> >     >     > On Fri, Nov 23, 2012 at 06:08:26PM +1100,
>> forster at ozonline.com.au
>> >     wrote:
>> >     >     > > I repeated these tests
>> >     >     >
>> >     >     > Thanks!
>> >     >     >
>> >     >     > > XO-1.75 and XO-4
>> >     >     > > OS14
>> >     >     > > Huawei E160E modem
>> >     >     > > Imation 8GB memory stick
>> >     >     >
>> >     >     > Is this actually a Memory Stick or do you mean a USB flash
>> drive?
>> >     >     > http://en.wikipedia.org/wiki/Memory_Stick
>> >     >     >
>> >     >     > Ajay said pen-drive, and I took that to mean a USB flash
>> drive.
>> >     >     >
>> >     >     > > I was unable to replicate the fault described by Ajay,
>> the modem
>> >     >     > > appeared in the frame, both plugged in after boot and
>> before boot
>> >     >     > >
>> >     >     > > but for both laptops
>> >     >     > >
>> >     >     > > In the first test, memory stick and modem plugged in
>> after boot,
>> >     the
>> >     >     > > frame never got past displaying connecting, even though I
>> could
>> >     >     > > browse the net ok
>> >     >     >
>> >     >     > Yes, this is SL #4255.
>> >     >     >
>> >     >     > > In the second test, memory stick and modem plugged in
>> before
>> >     boot, I
>> >     >     > > got to the connected display in the frame but the upload
>> and
>> >     >     > > download kB counters never updated past 0 even though I
>> was
>> >     >     > > browsing, the connected time did update ok.
>> >     >     >
>> >     >     > Interesting, thanks.  Updated SL #4255.  I've never seen
>> data
>> >     counters
>> >     >     > in 13.1.0 builds.
>> >     >     >
>> >     >     > > I did not try without the memory stick.
>> >     >     >
>> >     >     > I think your tests show that Ajay's problem is likely to be
>> unique
>> >     to
>> >     >     > the pen-drive in use.  Thanks for that.
>> >     >     >
>> >     >     > --
>> >     >     > James Cameron
>> >     >     > http://quozl.linux.org.au/
>> >     >     > _______________________________________________
>> >     >     > Devel mailing list
>> >     >     > Devel at lists.laptop.org
>> >     >     > http://lists.laptop.org/listinfo/devel
>> >     >     >
>> >     >     > _____________________________________________________
>> >     >     > This mail has been virus scanned by Australia On Line
>> >     >     > see http://www.australiaonline.net.au/mailscanning
>> >     >
>> >     >     _______________________________________________
>> >     >     Devel mailing list
>> >     >     Devel at lists.laptop.org
>> >     >     http://lists.laptop.org/listinfo/devel
>> >     >
>> >     >
>> >     >
>> >     >
>> >     > --
>> >     > Regards,
>> >     >
>> >     > Ravichandran Jv
>> >     > http://ravichandranjv.blogspot.com
>> >
>> >     --
>> >     James Cameron
>> >     http://quozl.linux.org.au/
>> >
>> >
>> >
>> >
>> > --
>> > Regards,
>> >
>> > Ravichandran Jv
>> > http://ravichandranjv.blogspot.com
>>
>> --
>> James Cameron
>> http://quozl.linux.org.au/
>>
>
>
>
> --
> Regards,
>
> Ravichandran Jv
> http://ravichandranjv.blogspot.com
>
> _______________________________________________
> Devel mailing list
> Devel at lists.laptop.org
> http://lists.laptop.org/listinfo/devel
>
>


Regards,
Ajay
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