Hopefully this will be of assistance, in case anyone looks at this bug. I've run the following commands under the current kernel (4.4.0-34-generic) and also a previous kernel (4.2.0-41-generic)
strace scanimage -L log_curr_kernel_not_work 2>&1 Scanner not detected strace scanimage -L log2_prev_kernel_works 2>&1 Scanner works fine Files attached. Diffing the logs shows the interesting stuff at line 3072 (log_curr_kernel_not_work) and line 3232 (log2_prev_kernel_works). It appears that there is an issue connecting under the current kernel that doesn't happen in previous kernels. Why? Beyond me I'm afraid, but its disappointing not to have scanning available now. Any help appreciated. Thanks. ** Attachment added: "log2_prev_kernel_works" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1613027/+attachment/4729877/+files/log2_prev_kernel_works -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1613027 Title: Network scanner not detected by xsane after upgrade to 16.04 Status in linux package in Ubuntu: Confirmed Bug description: Hopefully I'm reporting this in the correct area/group. Sorry if not. After upgrading to 16.04, my scanner is no longer detected by xsane (and other scan apps.) The model is 'Epson WF-3520' multi-function and is connected wirelessly to the network. The problem occurs on all my computers: A Dell 64 bit desktop, An Asus 64 bit laptop, A Medion 32 bit laptop. I've upgraded to the latest software released by the manufacturer on 2 computers, but it makes no difference. Printing works OK and also the scanner is detected if I connect using a USB cable (a second printer is installed though). The problem only occurs using the 'linux-image-4.4.0...' series of kernels. If I boot with any of the previous kernels available, 'linux-image-4.2.0...' or 'linux-image-3.19.0...' everything works OK. I am able to ping the scanner. I've tried a number of suggested fixes from searching around various forums, although many of these relate to 'back-end' scanners connected to a host for network access which is not applicable as mine is connected directly to the network. In any case none have worked. I have tried the following: . Removing all manufacturer software and /usr/sane.d/epkowa.conf . Comment out all entries in the /usr/sane.d/dll (Back-end related) . Comment out all entries in the /usr/sane.d/dll.conf.conf except 'net' and adding 'epkowa' (Back-end related) . Disable the firewall (ufw) . Specifically adding a port to use (1865) (ie. net 192.1... 1865 . Linking the libraries in /usr/lib/sane to /usr/lib/x86_64-linux-gnu/sane Other than that I'm at a loss and sticking with older kernels. Regards. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-34-generic 4.4.0-34.53 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tony 4520 F.... pulseaudio /dev/snd/controlC1: tony 4520 F.... pulseaudio CurrentDesktop: Unity Date: Sun Aug 14 16:37:16 2016 HibernationDevice: RESUME=UUID=762f657a-d174-4173-b09d-52d580c09a91 InstallationDate: Installed on 2013-10-01 (1047 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: ASUSTeK Computer Inc. N71Jq ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic root=UUID=dea23950-d6b3-498c-abba-a94513b58579 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-34-generic N/A linux-backports-modules-4.4.0-34-generic N/A linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-07-30 (14 days ago) dmi.bios.date: 12/24/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: N71Jq.204 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: N71Jq dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN71Jq.204:bd12/24/2009:svnASUSTeKComputerInc.:pnN71Jq:pvr1.0:rvnASUSTeKComputerInc.:rnN71Jq:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: N71Jq dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1613027/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
