Public bug reported:
I have here the slide scanner ‘Braun MultiMag SlideScan 6000’. When I connect
it and switch it on, the colord-sane process is started during its approx.
2-minute self-calibration, which then disappears again. After that, the device
is no longer listed via lsusb, so presumably the USB port is switched off. Even
running the scan application does not prevent this. It is still recognised
before the 2 minutes have elapsed:
$ lsusb
[.....]
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[.....]
Bus 003 Device 008: ID 05e3:0142 Genesys Logic, Inc. Multiple Slides
Scanner-3600
The only way to connect the scanner permanently and then use it is to
connect the scanner to USB only after it's self-calibration. Then
colord-sane will no longer be started. However, this obviously prevents
the use of colour management.
IMHO, it should not be the task of the colour management to switch off
USB ports.
I attach the USB capture with WireShark.
** Affects: colord (Ubuntu)
Importance: Undecided
Status: New
** Tags: corlord sane scan usb
** Attachment added: "Concentrated overview."
https://bugs.launchpad.net/bugs/2088294/+attachment/5837496/+files/Kalibrierung_3.csv
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https://bugs.launchpad.net/bugs/2088294
Title:
colord-sane prevents connection to USB scanner
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