[argyllcms] Re: Strip read failed due to communication problem (i1pro W7x64)
- From: "Matthew H. Owens" <matt@xxxxxxxxxxxxxxxxxxxx>
- To: "argyllcms@xxxxxxxxxxxxx" <argyllcms@xxxxxxxxxxxxx>
- Date: Sat, 16 Jul 2011 19:59:05 -0700
Be careful with using a powered USB hub and an eye one. I have blown a
lightbulb on an eye one, likely because of the USB powered hub. I was using a
Belkin hub at the time.
Sent from my iPad
On Jul 15, 2011, at 4:51 AM, "M. Kupiec" <markupiec@xxxxxxxxx> wrote:
> I've never made any compilation. Can somebody compile that file for me or
> give some tutorial links?..
>
> The file with changed values attached
>
> I'm wondering if the problem is not in not enough usb power while measuring.
> I've made some measurements and there in 4,95V in pc and 5,10V in working
> laptop
> Seems normal but thats idle voltages
>
> At evening im gona to try with powered USB hub, and additional usb pci card.
>
> Pozdrawiam Marcin
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> 2011/7/11 Graeme Gill <graeme@xxxxxxxxxxxxx>
> M. Kupiec wrote:
> > Yesterday i have totally uninstalling the factory usb divers and other
> > stuff and install standard windows drivers. That didn't help to .
> > Changing usb port to built in usb 3.0 device caused that the device install
> > drivers, but argyll cant find the i1pro.
> >
> > The last issue it the 1,5m i1pro cable that is not orginal but work fine
> > with i1 and other pc.
> > What else can i try to get chartread work?..
>
> Hi,
> it sounds like a difficult problem, since there is little to go on.
> There are two approaches to getting some more clues - either get a more
> detailed trace, or try changing parameters to see if anything has any
> influence on the problem. The former requires a hardware
> USB trace. The latter means varying certain things. For instance,
> I suggested making up a chart with very short strips, to see if that
> behaves any differently. You haven't said if you've tried this
> or what the result is.
>
> Another thing to try is to increase the timeout value and see if
> that has any effect. To do this you would change line 7275
> of spectro/i1pro_imp.c from
> extra = 1.0; /* Extra timeout margin */
> to
> extra = 10.0; /* Extra timeout margin */
> recompile, and see if this makes any difference.
>
> Graeme Gill.
>
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> --
> Pozdrawiam
> Marcin
> <i1pro_imp.c>
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