Package: cupsys Version: 1.2.1-3 Severity: normal Tags: patch Canon inkjet printers are sluggish using the usb:// interface, and sometimes reboot before the page has competed.
backend/usb-unix.c says: /* * Disable backchannel data when printing to Canon USB printers - apparently * Canon printers will return the IEEE-1284 device ID over and over and over * when they get a read request... */ use_bc = strcasecmp(hostname, "Canon") != 0; But it never uses the use_bc variable after that. The fix is to change the final argument to the backendRunLoop() call, as per the attached patch. -- System Information: Debian Release: testing/unstable APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (99, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.17-1-686 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Versions of packages cupsys depends on: ii adduser 3.94 Add and remove users and groups ii debconf [debconf-2.0] 1.5.2 Debian configuration management sy ii gs-esp 8.15.1.dfsg.1-2.1 The Ghostscript PostScript interpr ii libacl1 2.2.39-1 Access control list shared library ii libc6 2.3.6-15 GNU C Library: Shared libraries ii libcupsimage2 1.2.1-3 Common UNIX Printing System(tm) - ii libcupsys2 1.2.1-3 Common UNIX Printing System(tm) - ii libdbus-1-2 0.62-4 simple interprocess messaging syst ii libgnutls13 1.4.1-1 the GNU TLS library - runtime libr ii libldap2 2.1.30-13+b1 OpenLDAP libraries ii libpam0g 0.79-3.1 Pluggable Authentication Modules l ii libpaper1 1.1.19 Library for handling paper charact ii libslp1 1.2.1-5 OpenSLP libraries ii lsb-base 3.1-10 Linux Standard Base 3.1 init scrip ii patch 2.5.9-4 Apply a diff file to an original ii perl-modules 5.8.8-6 Core Perl modules ii procps 1:3.2.7-2 /proc file system utilities ii xpdf-utils [poppler-ut 3.01-9 Portable Document Format (PDF) sui ii zlib1g 1:1.2.3-13 compression library - runtime Versions of packages cupsys recommends: ii cupsys-client 1.2.1-3 Common UNIX Printing System(tm) - ii foomatic-filters 3.0.2-20060712-1 linuxprinting.org printer support ii smbclient 3.0.22-1 a LanManager-like simple client fo -- debconf information: * cupsys/raw-print: true * cupsys/ports: localhost:631 * cupsys/backend: ipp, lpd, parallel, socket, usb cupsys/portserror: * cupsys/browse: true
usb-unix.dpatch
Description: application/shellscript
