Calibre uses 100% of system resources

[Christopher]

I was running the Nathan Muench ppa of Calibre successfully until the upgrade to Quantal. I tried downgrading the version to the 12.10 version but nothing changed. It just hangs and uses 100% of my duel core processors.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: calibre 0.8.51+dfsg-1ubuntu1
ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0
Uname: Linux 3.4.0-5-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.2.3-0ubuntu4
Architecture: amd64
Date: Mon Jun 18 10:32:27 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: calibre
UpgradeStatus: Upgraded to quantal on 2012-06-15 (2 days ago)

[Doug McMahon (mc3man)]

Christopher - marked as a dupe of my bug - to test
open a terminal, copy & paste this command & run

LIBOVERLAY_SCROLLBAR=0 calibre

If calibre behaves correctly then the duping was proper

Note that the latest upstream calibre (0.8) works fine as it provides it's own qt4 libs

[Barry Drake (b-drake)]

The above works for me. I have made a launch script:
LIBOVERLAY_SCROLLBAR=0
calibre

and am using this as a workaround until the fix happens.

[Launchpad Janitor (janitor)]

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

[Barry Drake (b-drake)]

Sorry - the script line above should read "LIBOVERLAY_SCROLLBAR=0 calibre" - my mistake.

[Christopher (soft-kristal)]

I installed openlp - a new item in the repositories and it is subject to the same bug. I've attached a screenshot of its dependencies in the hope that there is something in common.

[Christopher (soft-kristal)]

Still having issues with this. I was able to run hp-sendfax with the LIBOVERLAY_SCROLLBAR=0 (caps are vital) but with the following messages from the terminal.

p11-kit: duplicate configured module: gnome-keyring.module: /usr/lib/i386-linux-gnu/pkcs11/gnome-keyring-pkcs11.so
Using printer: Officejet-4500-G510g-m-Fax

Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 9: reading configurations from ~/.fonts.conf is deprecated.

(python:8789): Gdk-CRITICAL **: IA__gdk_error_trap_pop: assertion `gdk_error_traps != NULL' failed