Arch Linux User Repository

@Konzertheld: Just tested with XSane under Wayland - works... But I am not a crack concerning Wayland as my laptop freezes the GUI when using a second monitor. So there might be more than meets the eye ;)

Hello, I've been having trouble scanning since I switched from Gnome+X to Gnome+Wayland, so I kindly ask for assistance in searching for the error, be it Wayland related, related to re-installing the system (which I did at the same time) or something else just coinciding with the other two. These problems are not related to the April 21st update of this package, they were there before.

a) After every reboot, I have to enter my root password when I scan something for the first time. I use simple-scan and when I close it afterwards and open it later without reboot or logging out, no password is needed.

b) Worse, I can only ever scan one page from the ADF. The scanner pulls the others and simple-scan waits for it to do so but does not scan them, it only retrieves the first one and then throws a kinda generic error message after the last page has been pulled through by the scanner.

c) Also, I used to see the progress of the page while being scanned. Now I only see the page pop up as whole after it was scanned.

For the sake of readability, I pasted my log elsewhere. Also note how slow everything is. I use a MFC-L2710DN as can be seen there. https://pastebin.com/skCX4dFV

Thanks for reading.

@maxfranco: Well looking into this I found that libavahi-client.so.3 is a dependency brought in by sane. It seems the -q query option depends on this (which makes perfect sense) - but there is no need to include it as sane should pull it in anyway.

@maxfranco: will take a look as soon as possible. Namcap is throwing some more errors I will have to investigate, but it does not point out avahi as a missing dependency. As it is working for you with avahi installed it is not completely broken at least ;)

@ Harvey i'm working with a MFC-J470DW wifi scanner. I installed brscan4 then tried to add my scanner with: brscan4 -a brsaneconfig4 -a name=MFC-J470DW model=MFC-J470DW ip=192.168.x.x

brscan4 complains for missing libavahi-client.so.3 and don't let my add my scanner i installed avahi to solve the problem now i have removed avahi and i can anyway add new scanner, but the brsaneconfig4 -q problem persist brsaneconfig4 -q /opt/brother/scanner/brscan4/brscan_cnetconfig: error while loading shared libraries: libavahi-client.so.3: cannot open shared object file: No such file or directory installing again avahi fix it. sudo brsaneconfig4 -q * MFC-J470DW [ 192.168.x.x] MFC-J470DW

@maxfranco: Please provide more information. Network or USB scanner, scanner model, which frontend do you use, are there any error messages, which steps did you take to use your scanner. Without this I can only tell that for me it works without avahi...

There is a missing dependency, without avahi (libavahi-client.so.3) it's impossible add or query scanners.

Systemd developers seem to be unsure about this case subject too: https://github.com/systemd/systemd/issues/5642 ☺

@ettavolt

Thanks, the workaround did the trick, though now it's fixed :)

@Harvey

I removed the udev rule, updated the package and rebooted for good measure, now I can confirm it's working perfectly, so the suspicions may have been correct.

Thank you both!

@Sondeluz, sorry, I've copy-n-pasted != for the idProduct check in the proposed rule. It should have been

ACTION=="add" ATTR{idVendor}=="04f9" ATTR{idProduct}=="041f" ENV{libsane_matched}="yes"