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[Oliver K <1359382@xxxxxxxxxxxxxxxxxx>]

Hi, 
further experimenting brought interesting results:

1) the error message "invalid UTF-8" can directly be provoked. It came
out of a feature of the Gretag-Macbeth Profile Maker software. Profile
Maker takes note of how you name the .ICC file, because this may contain
information about the name of the device measured. So Profile Maker
makes a note inside the .ICC file about the file name. And at first I
chose a file name to indicate that the test print was rendered on plain
white paper (instead of recycled paper, which is standard in our
office). In German white is "weiß", with what Americans sometimes call
"the b looking character", actually it is a ligature of s and z. In the
early days of ASCII it was often represented by the Greek beta glyph,
but that has never been correct, it's a version of the s, Swiss people
transcribe it as double-s.

Anyhow, as a file name Windows encoded this in Western codepage, of
course, and not in UTF-8. Profile Maker just copied this into a string
variable that might be encoded in UTF-8 without a conversion.

I created new .ICC profiles without the ß in the file name (and
therefore without it in this string inside the file), and now the file
does import without error messages. No "invalid UTF-8" anymore, and no
timeout. Still, importing takes a loong time (10-12 seconds on a fast
quadcore machine), but after that, a copy lands in
~/.local/share/icc/colord and second import attempts yield the message
"already imported". So far so good.

I think colord should be more tolerant her, since it's only a string
containing a name. Windows doesn't complain, it even shows the string
correctly.

2) But that's about it. I cannot add the imported profile to the device
listing of the HP Laserjet 4P, color manager only lists the standard
Grey profile, since this Laserjet is a greyscale device, and not the
imported profile. And since it gets neither listed nor added nor
activated, the .ICC is not used at all.

I found that Gretag-Macbeth can create to types of profiles, .ICC with
"default size" and "large size". Since an ECI2002V CMYK test pattern
contains 1485 color test colors, I usually create large files, for the
sake of precision. Now I tried to create default sized ones. I can
import them in color manager, but then the same as above. I cannot
activate them although they are imported.

If I open the file with the import manager and let it show the details,
it shows only the checksum and the fact that it's an output device's
file and CMYK. Everything else is missing, like color gamut, CIE 1931,
TRC, VCGT and a rendering preview.

I attach the default sized version of the .ICC to this report.

Thanks
Oliver

** Attachment added: "HP Laserjet 4P .ICC file as created by Gretag-Macbeth's Profile Maker"
   https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1359382/+attachment/4184058/+files/Printer_HP_Laserjet-4P_Linux_ws_12.8.14_def.icc

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https://bugs.launchpad.net/bugs/1359382

Title:
  colord rejects printer .ICC color profile

Status in Colord:
  New
Status in “colord” package in Ubuntu:
  New

Bug description:
  Hi,

  At work I have access to an expensive professional photo spectrometer
  to calibrate input and output devices in terms of color, Gretag
  Macbeth (now X-Rite) Spectrolino and Spectroscan, and i1 (Eye  One).

  I have profiled my monitors (currently either Dell P2210 or Samsung
  SyncMaster 950p+) with them, and the monitor .ICC works perfectly well
  not only under Windows, but also under Linux Mint 16 Petra 64 Bit (all
  updates are installed).

  But not so the printer profile. No matter whether I try to import the
  ICC for the printer (trusty old HP Laserjet 4P) that I have created
  from a print under Linux or the one I have created from a print under
  Windows, colord rejects them with the cryptic error message "invalid
  UTF-8". This happens when I start "color" over the "settings" dialog
  panel.

  When I try to import the ICC with right click on the file and select
  "import with ICC profile installation" a couple of seconds nothing
  happens, then I get the even stranger error message "File could not be
  imported / The profile was not added in time".

  Again, gthe .ICC itself is pefectly sane and works flawlessly under
  Windows 7 and 8.1. I created it with the professional software
  "Profile Maker 5" from Gretag Macbeth.

  Thanks for your help.
  Oliver

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