[argyllcms] Re: Spyder 4 works with dispcal but fails with dispread
- From: John Palmieri <john.j5live@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 6 Dec 2012 13:26:30 -0500
On Thu, Dec 6, 2012 at 12:47 AM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:
> John Palmieri wrote:
> > Hello, someone at my office bought a Spyder 4 so I decided to see if I
> > could get it working under Fedora 17. After fixing some udev rules and
> > gnome-color-manager code the spyder was running fine during the
> > pre-calibration phase which uses dispcal. However, when it got to the
> > actual calibration phase, dispread could not read from the device. Here
> is
> > the command that is run along with the output.
>
> > spyd2: Read bytes retry with ICOM err 0x2000
>
> Hi,
> is something like libmtp running ? It's known to randomly open
> USB devices, and interfere with instrument operation. If so, try disabling
> it in udev.
>
> [ Latter versions of libmtp are meant to notice if a device has
> COLOR_MEASUREMENT_DEVICE set, and not attempt to open them. ]
>
> Graeme Gill.
>
>
> Actually it looks either like poor USB 3 support or Lenovo internally uses
usb hubs for some of their ports. Attaching to a different port on the
back instead of the side allows the calibration to complete.
--
John (J5) Palmieri
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