OK. The machine had since updated to 3.13.0-76-generic but still had the problem with the scanner not being detected over wifi by scangearmp.
As per the instructions at https://wiki.ubuntu.com/Kernel/MainlineBuilds#Preparing_to_install_an_upstream_kernel I switched from the proprietary NVidia binary driver (v340.96 for GeForce GT430) to the open source X.Org X server Nouveau driver. I rebooted then installed the upstream kernel v4.5-rc1-wily from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-rc1-wily/ These were the files I used: linux-headers-4.5.0-040500rc1_4.5.0-040500rc1.201601241731_all.deb linux-headers-4.5.0-040500rc1-generic_4.5.0-040500rc1.201601241731_amd64.deb linux-image-4.5.0-040500rc1-generic_4.5.0-040500rc1.201601241731_amd64.deb I rebooted into it from the GRUB menu. scangearmp *was* then able to find my Canon MG7150 scanner over wifi. So it's fixed in the upstream kernel and I've added the tags you requested. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1529232 Title: Scanner not detected over wifi since after 3.13.0-68 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529232/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
