gcm callibrate fails with Error creating directory: File name too long

[Franck]

Trying to callibrate a webcam:

1) install shared-color-targets, else you fall into bug https://bugs.launchpad.net/ubuntu/+source/gnome-color-manager/+bug/643168
2) follow the steps to callibrate a camera:
- choose device
- click callibrate
- choose callibration quality
- choose target (I pick the default, IT8.7/2, as it is the target I have)
- choose profile title: I keep the default, "webcam"
- see the callibration fail with message: Error creating directory: File name too long

Running gnome-control-center from a terminal give a not much more informative message:
(gcm-calibrate:20956): Gcm-WARNING **: failed to calibrate: Error creating directory: File name too long

[Franck (alci)]

Forgot to mention the version I tested: this is gnome-color-manager 3.6.0-0ubuntu1 on Quantal.

[petermolnar (petermolnar)]

Affects me as well. Mint 14 RC with Unity, kernel 3.6.0-6.dmz.1-liquorix-amd64, any folder name fails for me with the same process.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kevin Dalley (nereocystis)]

This problem shows up when using ecryptfs.

kevin@nereocystis:~/src/gnome-color-manager-3.6.0$ ./src/gcm-calibrate --device cups-Officejet-6500-E709n
filename set to: /home/kevin/.config/gnome-color-manager/calibration/GCM - Hewlett Packard - HP Officejet 6500 e709n - dnssd___Officejet_206500_20E709n_20_5B09F0B5_5D__pdl-datastream__tcp_local_ (2013-02-10) [00-56-58] - 00-56-58

This filename is 178 characters long, but ecryptfs can only handle 143 characters.

https://bugs.launchpad.net/ecryptfs/+bug/344878

These lines in gcm_calibrate.c is the problem.
  file = g_file_new_for_path (filename);

  ret = g_file_make_directory_with_parents (file, NULL, error);

g_file_make_directory_with_parents fails.

[Kevin Dalley (nereocystis)]

The file name is actually gcm-calibrate.c

dash "-", not underscore "_".