Gentoo problem with error :No device connected

[joebie13]

I've tried version 8.24 provided with gentoo through an ebuild and I've tried 8.30 compiled from source. With both versions I encounter the error "No device connected" while being able to read the books from the device. But not send books to the PRS-T1.

I've started the debugger in eclipse and found in the file gui2/device.py close to line 794 in the function "device_detected" the line
"""
self.set_default_thumbnail(\
self.device_manager.device.THUMBNAIL_HEIGHT)
"""

This line causes the function to return and not set the variable self.device_connected.
When I comment out this line, Calibre work fine.

I presume this is not a bug but specifically a problem with my gentoo install. Am I missing a dependency, perhaps a missing file type support?

I also get an error when downloading news I've attached the output.

[frostschutz]

Gentoo doesn't provide 8.24, at least, not anymore.

$ ls -l /usr/portage/app-text/calibre/
total 52
-rw-r--r-- 1 root root 28162 Dec  5 20:01 ChangeLog
-rw-r--r-- 1 root root  1424 Dec  5 20:01 Manifest
-rw-r--r-- 1 root root  5495 Nov 25 17:43 calibre-0.8.28.ebuild
-rw-r--r-- 1 root root  5495 Dec  5 19:49 calibre-0.8.29.ebuild
-rw-r--r-- 1 root root   340 Nov 15 17:01 metadata.xml

Both 8.28/29 detect my device properly. Maybe your Gentoo is not updated?