[argyllcms] Re: [Colormunki] dispread: Error - new_disprd failed with 'Instrument Access Failed'

  • From: Niccolò Belli <darkbasic@xxxxxxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Tue, 05 Jan 2016 20:18:09 +0100

Hi Graeme,
Here is the USBMon trace of the timeout: https://sourceforge.net/p/dispcalgui/bug-reports/_discuss/thread/73a10891/735c/attachment/1.mon.out.txt
I also uploaded a video on youtube to show when I get the timeout: https://www.youtube.com/watch?v=_W7j8j4pKKQ&feature=youtu.be
It manages to calibrate the display and to read all the patches to make the profile, but when it finally wants to access the instrument once again for the final verification step it fails.
I CCed Alan Stern as you suggested.

Thanks,
Niccolò


On martedì 5 gennaio 2016 03:17:01 CET, Graeme Gill wrote:

Niccolò Belli wrote:
I'm using dispcalgui 3.0.6.0 with Argyllcms 1.8.3 on Archlinux x64. I get this error while
trying to calibrate my monitor (not immediately but after a while). My laptop only has
usb3 ports.

Hi,
I'm not sure there is much I can do about this sort of problem -
it appears to be the result of some interaction between the Linux
USB hub driver, hub hardware and ColorMunki hardware. The most
direct way of looking for an explanation would be to capture
a USBMon trace of the timeout, and then report the problem to the
linux-usb list, and see if Alan Stern is willing to take a look at it.

As a workaround you could try using a different USB port, or trying
running it through a USB hub.

Graeme Gill.

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