Thanks @renbag. With your help I'm now confident enough to proceed with the principal bionic change.
As regards support for the /usr/lib64/sane directory, I would like to know if that change will be accepted in Debian before acting; please see <https://bugs.debian.org/931297#20>. So right now I'm waiting for an answer to my question in that message. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1728012 Title: Many 3rd party scanner drivers are broken by a sane change Status in sane-backends package in Ubuntu: Fix Released Status in sane-backends source package in Bionic: In Progress Status in sane-backends package in Debian: Fix Released Bug description: [Impact] * Starting with Ubuntu 17.10, Ubuntu changed the directory where sane dll looks for third party drivers. This configuration effectively broke backward compatibility for all existing third-party drivers. * A large swath of these third party drivers (most of them) are no longer supported by the OEM, so maintaining compatibility is important. * No open source replacement drivers are currently available, nor does the community have the resources to easily replace them. * This bug represents a substantial portion of the scanners in use. Scanners known to be affected include, but are not limited to: - Brother Scanners (all Brother scanners before brscan4) - DCP-145C - DCP-163C - DCP-165C - DCP-167C - DCP-185C - DCP-195C - DCP-197C - DCP-365CN - DCP-373CW - DCP-375CW - DCP-377CW - DCP-383C - DCP-385C - DCP-387C - DCP-395CN - DCP-585CW - DCP-6690CW - DCP-7030 - DCP-7040 - DCP-7045N - DCP-8070D - DCP-8080DN - DCP-8085DN - DCP-9010CN - DCP-9040CN - DCP-9042CDN - DCP-9045CDN - DCP-J125 - DCP-J315W - DCP-J515W - DCP-J715W - MFC-250C - MFC-255CW - MFC-257CW - MFC-290C - MFC-295CN - MFC-297C - MFC-490CW - MFC-495CW - MFC-5490CN - MFC-5890CN - MFC-5895CW - MFC-6490CW - MFC-6890CDW - MFC-7320 - MFC-7340 - MFC-7345N - MFC-7440N - MFC-7450 - MFC-7840N - MFC-7840W - MFC-790CW - MFC-795CW - MFC-8370DN - MFC-8380DN - MFC-8480DN - MFC-8510DN - MFC-8680DN - MFC-8880DN - MFC-8890DW - MFC-9010CN - MFC-9120CN - MFC-9320CW - MFC-9440CN - MFC-9450CDN - MFC-9840CDW - MFC-990CW - MFC-J220 - MFC-J265W - MFC-J270W - MFC-J410 - MFC-J410W - MFC-J415W - MFC-J615W - MFC-J630W - Dell MFP Laser Printer 1135n - Epson Scanners - All scanners supported by the libsane-epk driver - All scanners supported by the iscan driver - Epson Perfection V10 - Epson Perfection V1000 - Epson WorkForce GT-1500 - Epson Perfection V33 - Samsung M2070 - Xerox Workcentre 3225 * This was working in the 17.04 release. 18.10 is an LTS release, so backporting is warranted for the 18.10 release. [Test Case] * Following the standard installation procedures for any of the affected scanner drivers results in the driver files being installed to /usr/lib/sane/, and sane looking for them in /usr/lib/x86_64-linux- gnu/sane. When xsane is run, the scanner is not found. [Regression Potential] * Regression to previous working sane package often results in the automatic removal of core system components (documented in the comments to this bug report), making regression an unusable option for addressing this bug. * The available patch is functional and stable in the 19.10 branch. [Other Info] * Third party sane drivers in previous version of sane were located under /usr/lib/sane/, however, the current version of sane on Ubuntu only looks for 64 bit drivers under the /usr/lib/x86_64-linux-gnu/sane directory. /usr/lib64 and /usr/lib64/sane are other directories old drivers are known to install files to. * The addition of symlinks alone does not appear to fix this issue, though it may make the scanner detectable. Changes to udev rules are also needed to allow proper communications to the scanners. A selection of workarounds, including working (though not ideal) udev rules for a number of scanners has been posted to the sane troubleshooting guide: help.ubuntu.com/community/sane_Troubleshooting#The_symlink_and_udev_tricks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1728012/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
